repos/blastem: zlib/gzwrite.c annotate

annotate zlib/gzwrite.c @ 2014:9ca255be938d

Reorder system settings so that more common options are near the top and none of the dropdowns get cut off

author	Michael Pavone <pavone@retrodev.com>
date	Mon, 02 Nov 2020 20:03:47 -0800
parents	00d788dac91a
children

rev	line source
1530 00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	1 /* gzwrite.c -- zlib functions for writing gzip files
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	2 * Copyright (C) 2004-2017 Mark Adler
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	3 * For conditions of distribution and use, see copyright notice in zlib.h
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	4 */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	5
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	6 #include "gzguts.h"
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	7
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	8 /* Local functions */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	9 local int gz_init OF((gz_statep));
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	10 local int gz_comp OF((gz_statep, int));
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	11 local int gz_zero OF((gz_statep, z_off64_t));
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	12 local z_size_t gz_write OF((gz_statep, voidpc, z_size_t));
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	13
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	14 /* Initialize state for writing a gzip file. Mark initialization by setting
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	15 state->size to non-zero. Return -1 on a memory allocation failure, or 0 on
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	16 success. */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	17 local int gz_init(state)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	18 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	19 {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	20 int ret;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	21 z_streamp strm = &(state->strm);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	22
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	23 /* allocate input buffer (double size for gzprintf) */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	24 state->in = (unsigned char *)malloc(state->want << 1);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	25 if (state->in == NULL) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	26 gz_error(state, Z_MEM_ERROR, "out of memory");
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	27 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	28 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	29
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	30 /* only need output buffer and deflate state if compressing */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	31 if (!state->direct) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	32 /* allocate output buffer */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	33 state->out = (unsigned char *)malloc(state->want);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	34 if (state->out == NULL) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	35 free(state->in);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	36 gz_error(state, Z_MEM_ERROR, "out of memory");
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	37 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	38 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	39
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	40 /* allocate deflate memory, set up for gzip compression */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	41 strm->zalloc = Z_NULL;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	42 strm->zfree = Z_NULL;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	43 strm->opaque = Z_NULL;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	44 ret = deflateInit2(strm, state->level, Z_DEFLATED,
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	45 MAX_WBITS + 16, DEF_MEM_LEVEL, state->strategy);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	46 if (ret != Z_OK) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	47 free(state->out);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	48 free(state->in);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	49 gz_error(state, Z_MEM_ERROR, "out of memory");
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	50 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	51 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	52 strm->next_in = NULL;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	53 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	54
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	55 /* mark state as initialized */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	56 state->size = state->want;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	57
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	58 /* initialize write buffer if compressing */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	59 if (!state->direct) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	60 strm->avail_out = state->size;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	61 strm->next_out = state->out;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	62 state->x.next = strm->next_out;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	63 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	64 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	65 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	66
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	67 /* Compress whatever is at avail_in and next_in and write to the output file.
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	68 Return -1 if there is an error writing to the output file or if gz_init()
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	69 fails to allocate memory, otherwise 0. flush is assumed to be a valid
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	70 deflate() flush value. If flush is Z_FINISH, then the deflate() state is
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	71 reset to start a new gzip stream. If gz->direct is true, then simply write
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	72 to the output file without compressing, and ignore flush. */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	73 local int gz_comp(state, flush)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	74 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	75 int flush;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	76 {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	77 int ret, writ;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	78 unsigned have, put, max = ((unsigned)-1 >> 2) + 1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	79 z_streamp strm = &(state->strm);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	80
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	81 /* allocate memory if this is the first time through */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	82 if (state->size == 0 && gz_init(state) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	83 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	84
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	85 /* write directly if requested */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	86 if (state->direct) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	87 while (strm->avail_in) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	88 put = strm->avail_in > max ? max : strm->avail_in;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	89 writ = write(state->fd, strm->next_in, put);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	90 if (writ < 0) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	91 gz_error(state, Z_ERRNO, zstrerror());
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	92 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	93 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	94 strm->avail_in -= (unsigned)writ;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	95 strm->next_in += writ;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	96 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	97 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	98 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	99
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	100 /* run deflate() on provided input until it produces no more output */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	101 ret = Z_OK;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	102 do {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	103 /* write out current buffer contents if full, or if flushing, but if
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	104 doing Z_FINISH then don't write until we get to Z_STREAM_END */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	105 if (strm->avail_out == 0 \|\| (flush != Z_NO_FLUSH &&
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	106 (flush != Z_FINISH \|\| ret == Z_STREAM_END))) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	107 while (strm->next_out > state->x.next) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	108 put = strm->next_out - state->x.next > (int)max ? max :
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	109 (unsigned)(strm->next_out - state->x.next);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	110 writ = write(state->fd, state->x.next, put);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	111 if (writ < 0) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	112 gz_error(state, Z_ERRNO, zstrerror());
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	113 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	114 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	115 state->x.next += writ;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	116 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	117 if (strm->avail_out == 0) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	118 strm->avail_out = state->size;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	119 strm->next_out = state->out;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	120 state->x.next = state->out;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	121 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	122 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	123
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	124 /* compress */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	125 have = strm->avail_out;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	126 ret = deflate(strm, flush);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	127 if (ret == Z_STREAM_ERROR) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	128 gz_error(state, Z_STREAM_ERROR,
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	129 "internal error: deflate stream corrupt");
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	130 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	131 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	132 have -= strm->avail_out;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	133 } while (have);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	134
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	135 /* if that completed a deflate stream, allow another to start */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	136 if (flush == Z_FINISH)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	137 deflateReset(strm);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	138
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	139 /* all done, no errors */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	140 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	141 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	142
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	143 /* Compress len zeros to output. Return -1 on a write error or memory
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	144 allocation failure by gz_comp(), or 0 on success. */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	145 local int gz_zero(state, len)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	146 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	147 z_off64_t len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	148 {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	149 int first;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	150 unsigned n;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	151 z_streamp strm = &(state->strm);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	152
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	153 /* consume whatever's left in the input buffer */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	154 if (strm->avail_in && gz_comp(state, Z_NO_FLUSH) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	155 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	156
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	157 /* compress len zeros (len guaranteed > 0) */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	158 first = 1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	159 while (len) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	160 n = GT_OFF(state->size) \|\| (z_off64_t)state->size > len ?
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	161 (unsigned)len : state->size;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	162 if (first) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	163 memset(state->in, 0, n);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	164 first = 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	165 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	166 strm->avail_in = n;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	167 strm->next_in = state->in;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	168 state->x.pos += n;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	169 if (gz_comp(state, Z_NO_FLUSH) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	170 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	171 len -= n;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	172 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	173 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	174 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	175
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	176 /* Write len bytes from buf to file. Return the number of bytes written. If
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	177 the returned value is less than len, then there was an error. */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	178 local z_size_t gz_write(state, buf, len)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	179 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	180 voidpc buf;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	181 z_size_t len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	182 {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	183 z_size_t put = len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	184
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	185 /* if len is zero, avoid unnecessary operations */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	186 if (len == 0)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	187 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	188
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	189 /* allocate memory if this is the first time through */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	190 if (state->size == 0 && gz_init(state) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	191 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	192
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	193 /* check for seek request */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	194 if (state->seek) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	195 state->seek = 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	196 if (gz_zero(state, state->skip) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	197 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	198 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	199
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	200 /* for small len, copy to input buffer, otherwise compress directly */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	201 if (len < state->size) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	202 /* copy to input buffer, compress when full */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	203 do {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	204 unsigned have, copy;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	205
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	206 if (state->strm.avail_in == 0)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	207 state->strm.next_in = state->in;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	208 have = (unsigned)((state->strm.next_in + state->strm.avail_in) -
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	209 state->in);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	210 copy = state->size - have;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	211 if (copy > len)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	212 copy = len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	213 memcpy(state->in + have, buf, copy);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	214 state->strm.avail_in += copy;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	215 state->x.pos += copy;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	216 buf = (const char *)buf + copy;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	217 len -= copy;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	218 if (len && gz_comp(state, Z_NO_FLUSH) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	219 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	220 } while (len);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	221 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	222 else {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	223 /* consume whatever's left in the input buffer */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	224 if (state->strm.avail_in && gz_comp(state, Z_NO_FLUSH) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	225 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	226
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	227 /* directly compress user buffer to file */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	228 state->strm.next_in = (z_const Bytef *)buf;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	229 do {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	230 unsigned n = (unsigned)-1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	231 if (n > len)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	232 n = len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	233 state->strm.avail_in = n;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	234 state->x.pos += n;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	235 if (gz_comp(state, Z_NO_FLUSH) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	236 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	237 len -= n;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	238 } while (len);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	239 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	240
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	241 /* input was all buffered or compressed */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	242 return put;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	243 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	244
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	245 /* -- see zlib.h -- */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	246 int ZEXPORT gzwrite(file, buf, len)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	247 gzFile file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	248 voidpc buf;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	249 unsigned len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	250 {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	251 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	252
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	253 /* get internal structure */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	254 if (file == NULL)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	255 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	256 state = (gz_statep)file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	257
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	258 /* check that we're writing and that there's no error */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	259 if (state->mode != GZ_WRITE \|\| state->err != Z_OK)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	260 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	261
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	262 /* since an int is returned, make sure len fits in one, otherwise return
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	263 with an error (this avoids a flaw in the interface) */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	264 if ((int)len < 0) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	265 gz_error(state, Z_DATA_ERROR, "requested length does not fit in int");
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	266 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	267 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	268
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	269 /* write len bytes from buf (the return value will fit in an int) */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	270 return (int)gz_write(state, buf, len);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	271 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	272
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	273 /* -- see zlib.h -- */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	274 z_size_t ZEXPORT gzfwrite(buf, size, nitems, file)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	275 voidpc buf;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	276 z_size_t size;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	277 z_size_t nitems;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	278 gzFile file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	279 {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	280 z_size_t len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	281 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	282
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	283 /* get internal structure */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	284 if (file == NULL)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	285 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	286 state = (gz_statep)file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	287
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	288 /* check that we're writing and that there's no error */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	289 if (state->mode != GZ_WRITE \|\| state->err != Z_OK)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	290 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	291
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	292 /* compute bytes to read -- error on overflow */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	293 len = nitems * size;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	294 if (size && len / size != nitems) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	295 gz_error(state, Z_STREAM_ERROR, "request does not fit in a size_t");
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	296 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	297 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	298
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	299 /* write len bytes to buf, return the number of full items written */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	300 return len ? gz_write(state, buf, len) / size : 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	301 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	302
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	303 /* -- see zlib.h -- */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	304 int ZEXPORT gzputc(file, c)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	305 gzFile file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	306 int c;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	307 {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	308 unsigned have;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	309 unsigned char buf[1];
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	310 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	311 z_streamp strm;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	312
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	313 /* get internal structure */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	314 if (file == NULL)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	315 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	316 state = (gz_statep)file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	317 strm = &(state->strm);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	318
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	319 /* check that we're writing and that there's no error */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	320 if (state->mode != GZ_WRITE \|\| state->err != Z_OK)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	321 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	322
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	323 /* check for seek request */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	324 if (state->seek) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	325 state->seek = 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	326 if (gz_zero(state, state->skip) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	327 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	328 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	329
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	330 /* try writing to input buffer for speed (state->size == 0 if buffer not
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	331 initialized) */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	332 if (state->size) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	333 if (strm->avail_in == 0)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	334 strm->next_in = state->in;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	335 have = (unsigned)((strm->next_in + strm->avail_in) - state->in);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	336 if (have < state->size) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	337 state->in[have] = (unsigned char)c;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	338 strm->avail_in++;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	339 state->x.pos++;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	340 return c & 0xff;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	341 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	342 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	343
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	344 /* no room in buffer or not initialized, use gz_write() */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	345 buf[0] = (unsigned char)c;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	346 if (gz_write(state, buf, 1) != 1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	347 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	348 return c & 0xff;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	349 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	350
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	351 /* -- see zlib.h -- */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	352 int ZEXPORT gzputs(file, str)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	353 gzFile file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	354 const char *str;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	355 {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	356 int ret;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	357 z_size_t len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	358 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	359
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	360 /* get internal structure */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	361 if (file == NULL)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	362 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	363 state = (gz_statep)file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	364
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	365 /* check that we're writing and that there's no error */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	366 if (state->mode != GZ_WRITE \|\| state->err != Z_OK)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	367 return -1;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	368
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	369 /* write string */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	370 len = strlen(str);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	371 ret = gz_write(state, str, len);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	372 return ret == 0 && len != 0 ? -1 : ret;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	373 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	374
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	375 #if defined(STDC) \|\| defined(Z_HAVE_STDARG_H)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	376 #include <stdarg.h>
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	377
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	378 /* -- see zlib.h -- */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	379 int ZEXPORTVA gzvprintf(gzFile file, const char *format, va_list va)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	380 {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	381 int len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	382 unsigned left;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	383 char *next;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	384 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	385 z_streamp strm;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	386
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	387 /* get internal structure */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	388 if (file == NULL)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	389 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	390 state = (gz_statep)file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	391 strm = &(state->strm);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	392
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	393 /* check that we're writing and that there's no error */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	394 if (state->mode != GZ_WRITE \|\| state->err != Z_OK)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	395 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	396
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	397 /* make sure we have some buffer space */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	398 if (state->size == 0 && gz_init(state) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	399 return state->err;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	400
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	401 /* check for seek request */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	402 if (state->seek) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	403 state->seek = 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	404 if (gz_zero(state, state->skip) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	405 return state->err;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	406 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	407
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	408 /* do the printf() into the input buffer, put length in len -- the input
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	409 buffer is double-sized just for this function, so there is guaranteed to
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	410 be state->size bytes available after the current contents */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	411 if (strm->avail_in == 0)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	412 strm->next_in = state->in;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	413 next = (char *)(state->in + (strm->next_in - state->in) + strm->avail_in);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	414 next[state->size - 1] = 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	415 #ifdef NO_vsnprintf
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	416 # ifdef HAS_vsprintf_void
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	417 (void)vsprintf(next, format, va);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	418 for (len = 0; len < state->size; len++)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	419 if (next[len] == 0) break;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	420 # else
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	421 len = vsprintf(next, format, va);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	422 # endif
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	423 #else
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	424 # ifdef HAS_vsnprintf_void
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	425 (void)vsnprintf(next, state->size, format, va);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	426 len = strlen(next);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	427 # else
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	428 len = vsnprintf(next, state->size, format, va);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	429 # endif
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	430 #endif
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	431
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	432 /* check that printf() results fit in buffer */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	433 if (len == 0 \|\| (unsigned)len >= state->size \|\| next[state->size - 1] != 0)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	434 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	435
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	436 /* update buffer and position, compress first half if past that */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	437 strm->avail_in += (unsigned)len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	438 state->x.pos += len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	439 if (strm->avail_in >= state->size) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	440 left = strm->avail_in - state->size;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	441 strm->avail_in = state->size;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	442 if (gz_comp(state, Z_NO_FLUSH) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	443 return state->err;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	444 memcpy(state->in, state->in + state->size, left);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	445 strm->next_in = state->in;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	446 strm->avail_in = left;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	447 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	448 return len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	449 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	450
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	451 int ZEXPORTVA gzprintf(gzFile file, const char *format, ...)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	452 {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	453 va_list va;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	454 int ret;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	455
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	456 va_start(va, format);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	457 ret = gzvprintf(file, format, va);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	458 va_end(va);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	459 return ret;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	460 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	461
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	462 #else /* !STDC && !Z_HAVE_STDARG_H */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	463
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	464 /* -- see zlib.h -- */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	465 int ZEXPORTVA gzprintf (file, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10,
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	466 a11, a12, a13, a14, a15, a16, a17, a18, a19, a20)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	467 gzFile file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	468 const char *format;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	469 int a1, a2, a3, a4, a5, a6, a7, a8, a9, a10,
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	470 a11, a12, a13, a14, a15, a16, a17, a18, a19, a20;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	471 {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	472 unsigned len, left;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	473 char *next;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	474 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	475 z_streamp strm;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	476
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	477 /* get internal structure */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	478 if (file == NULL)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	479 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	480 state = (gz_statep)file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	481 strm = &(state->strm);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	482
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	483 /* check that can really pass pointer in ints */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	484 if (sizeof(int) != sizeof(void *))
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	485 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	486
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	487 /* check that we're writing and that there's no error */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	488 if (state->mode != GZ_WRITE \|\| state->err != Z_OK)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	489 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	490
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	491 /* make sure we have some buffer space */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	492 if (state->size == 0 && gz_init(state) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	493 return state->error;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	494
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	495 /* check for seek request */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	496 if (state->seek) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	497 state->seek = 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	498 if (gz_zero(state, state->skip) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	499 return state->error;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	500 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	501
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	502 /* do the printf() into the input buffer, put length in len -- the input
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	503 buffer is double-sized just for this function, so there is guaranteed to
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	504 be state->size bytes available after the current contents */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	505 if (strm->avail_in == 0)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	506 strm->next_in = state->in;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	507 next = (char *)(strm->next_in + strm->avail_in);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	508 next[state->size - 1] = 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	509 #ifdef NO_snprintf
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	510 # ifdef HAS_sprintf_void
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	511 sprintf(next, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12,
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	512 a13, a14, a15, a16, a17, a18, a19, a20);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	513 for (len = 0; len < size; len++)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	514 if (next[len] == 0)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	515 break;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	516 # else
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	517 len = sprintf(next, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11,
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	518 a12, a13, a14, a15, a16, a17, a18, a19, a20);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	519 # endif
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	520 #else
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	521 # ifdef HAS_snprintf_void
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	522 snprintf(next, state->size, format, a1, a2, a3, a4, a5, a6, a7, a8, a9,
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	523 a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	524 len = strlen(next);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	525 # else
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	526 len = snprintf(next, state->size, format, a1, a2, a3, a4, a5, a6, a7, a8,
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	527 a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	528 # endif
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	529 #endif
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	530
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	531 /* check that printf() results fit in buffer */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	532 if (len == 0 \|\| len >= state->size \|\| next[state->size - 1] != 0)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	533 return 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	534
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	535 /* update buffer and position, compress first half if past that */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	536 strm->avail_in += len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	537 state->x.pos += len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	538 if (strm->avail_in >= state->size) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	539 left = strm->avail_in - state->size;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	540 strm->avail_in = state->size;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	541 if (gz_comp(state, Z_NO_FLUSH) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	542 return state->err;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	543 memcpy(state->in, state->in + state->size, left);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	544 strm->next_in = state->in;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	545 strm->avail_in = left;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	546 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	547 return (int)len;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	548 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	549
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	550 #endif
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	551
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	552 /* -- see zlib.h -- */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	553 int ZEXPORT gzflush(file, flush)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	554 gzFile file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	555 int flush;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	556 {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	557 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	558
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	559 /* get internal structure */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	560 if (file == NULL)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	561 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	562 state = (gz_statep)file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	563
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	564 /* check that we're writing and that there's no error */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	565 if (state->mode != GZ_WRITE \|\| state->err != Z_OK)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	566 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	567
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	568 /* check flush parameter */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	569 if (flush < 0 \|\| flush > Z_FINISH)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	570 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	571
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	572 /* check for seek request */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	573 if (state->seek) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	574 state->seek = 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	575 if (gz_zero(state, state->skip) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	576 return state->err;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	577 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	578
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	579 /* compress remaining data with requested flush */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	580 (void)gz_comp(state, flush);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	581 return state->err;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	582 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	583
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	584 /* -- see zlib.h -- */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	585 int ZEXPORT gzsetparams(file, level, strategy)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	586 gzFile file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	587 int level;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	588 int strategy;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	589 {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	590 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	591 z_streamp strm;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	592
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	593 /* get internal structure */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	594 if (file == NULL)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	595 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	596 state = (gz_statep)file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	597 strm = &(state->strm);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	598
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	599 /* check that we're writing and that there's no error */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	600 if (state->mode != GZ_WRITE \|\| state->err != Z_OK)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	601 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	602
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	603 /* if no change is requested, then do nothing */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	604 if (level == state->level && strategy == state->strategy)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	605 return Z_OK;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	606
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	607 /* check for seek request */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	608 if (state->seek) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	609 state->seek = 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	610 if (gz_zero(state, state->skip) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	611 return state->err;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	612 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	613
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	614 /* change compression parameters for subsequent input */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	615 if (state->size) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	616 /* flush previous input with previous parameters before changing */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	617 if (strm->avail_in && gz_comp(state, Z_BLOCK) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	618 return state->err;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	619 deflateParams(strm, level, strategy);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	620 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	621 state->level = level;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	622 state->strategy = strategy;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	623 return Z_OK;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	624 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	625
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	626 /* -- see zlib.h -- */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	627 int ZEXPORT gzclose_w(file)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	628 gzFile file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	629 {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	630 int ret = Z_OK;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	631 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	632
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	633 /* get internal structure */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	634 if (file == NULL)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	635 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	636 state = (gz_statep)file;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	637
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	638 /* check that we're writing */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	639 if (state->mode != GZ_WRITE)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	640 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	641
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	642 /* check for seek request */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	643 if (state->seek) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	644 state->seek = 0;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	645 if (gz_zero(state, state->skip) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	646 ret = state->err;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	647 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	648
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	649 /* flush, free memory, and close file */
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	650 if (gz_comp(state, Z_FINISH) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	651 ret = state->err;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	652 if (state->size) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	653 if (!state->direct) {
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	654 (void)deflateEnd(&(state->strm));
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	655 free(state->out);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	656 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	657 free(state->in);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	658 }
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	659 gz_error(state, Z_OK, NULL);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	660 free(state->path);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	661 if (close(state->fd) == -1)
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	662 ret = Z_ERRNO;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	663 free(state);
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	664 return ret;
00d788dac91a Added support for reading gzipped ROMs Michael Pavone <pavone@retrodev.com> parents: diff changeset	665 }

Mercurial > repos > blastem

annotate zlib/gzwrite.c @ 2014:9ca255be938d