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Add zlib LICENSE file to zlib subdir
author Michael Pavone <pavone@retrodev.com>
date Sun, 15 Jun 2025 15:41:38 -0700
parents 9ef72ee5c0b0
children
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1 /* gzwrite.c -- zlib functions for writing gzip files
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2 * Copyright (C) 2004-2019 Mark Adler
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3 * For conditions of distribution and use, see copyright notice in zlib.h
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4 */
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5
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6 #include "gzguts.h"
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7
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8 /* Initialize state for writing a gzip file. Mark initialization by setting
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9 state->size to non-zero. Return -1 on a memory allocation failure, or 0 on
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10 success. */
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11 local int gz_init(gz_statep state) {
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12 int ret;
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13 z_streamp strm = &(state->strm);
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14
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15 /* allocate input buffer (double size for gzprintf) */
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16 state->in = (unsigned char *)malloc(state->want << 1);
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17 if (state->in == NULL) {
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18 gz_error(state, Z_MEM_ERROR, "out of memory");
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19 return -1;
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20 }
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21
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22 /* only need output buffer and deflate state if compressing */
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23 if (!state->direct) {
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24 /* allocate output buffer */
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25 state->out = (unsigned char *)malloc(state->want);
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26 if (state->out == NULL) {
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27 free(state->in);
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28 gz_error(state, Z_MEM_ERROR, "out of memory");
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29 return -1;
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30 }
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31
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32 /* allocate deflate memory, set up for gzip compression */
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33 strm->zalloc = Z_NULL;
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34 strm->zfree = Z_NULL;
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35 strm->opaque = Z_NULL;
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36 ret = deflateInit2(strm, state->level, Z_DEFLATED,
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37 MAX_WBITS + 16, DEF_MEM_LEVEL, state->strategy);
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38 if (ret != Z_OK) {
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39 free(state->out);
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40 free(state->in);
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41 gz_error(state, Z_MEM_ERROR, "out of memory");
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42 return -1;
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43 }
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44 strm->next_in = NULL;
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45 }
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46
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47 /* mark state as initialized */
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48 state->size = state->want;
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49
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50 /* initialize write buffer if compressing */
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51 if (!state->direct) {
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52 strm->avail_out = state->size;
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53 strm->next_out = state->out;
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54 state->x.next = strm->next_out;
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55 }
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56 return 0;
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57 }
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58
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59 /* Compress whatever is at avail_in and next_in and write to the output file.
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60 Return -1 if there is an error writing to the output file or if gz_init()
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61 fails to allocate memory, otherwise 0. flush is assumed to be a valid
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62 deflate() flush value. If flush is Z_FINISH, then the deflate() state is
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63 reset to start a new gzip stream. If gz->direct is true, then simply write
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64 to the output file without compressing, and ignore flush. */
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65 local int gz_comp(gz_statep state, int flush) {
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66 int ret, writ;
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67 unsigned have, put, max = ((unsigned)-1 >> 2) + 1;
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68 z_streamp strm = &(state->strm);
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69
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70 /* allocate memory if this is the first time through */
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71 if (state->size == 0 && gz_init(state) == -1)
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72 return -1;
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73
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74 /* write directly if requested */
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75 if (state->direct) {
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76 while (strm->avail_in) {
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77 put = strm->avail_in > max ? max : strm->avail_in;
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78 writ = write(state->fd, strm->next_in, put);
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79 if (writ < 0) {
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80 gz_error(state, Z_ERRNO, zstrerror());
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81 return -1;
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82 }
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83 strm->avail_in -= (unsigned)writ;
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84 strm->next_in += writ;
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85 }
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86 return 0;
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87 }
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88
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89 /* check for a pending reset */
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90 if (state->reset) {
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91 /* don't start a new gzip member unless there is data to write */
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92 if (strm->avail_in == 0)
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93 return 0;
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94 deflateReset(strm);
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95 state->reset = 0;
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96 }
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97
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98 /* run deflate() on provided input until it produces no more output */
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99 ret = Z_OK;
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100 do {
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101 /* write out current buffer contents if full, or if flushing, but if
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102 doing Z_FINISH then don't write until we get to Z_STREAM_END */
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103 if (strm->avail_out == 0 || (flush != Z_NO_FLUSH &&
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104 (flush != Z_FINISH || ret == Z_STREAM_END))) {
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105 while (strm->next_out > state->x.next) {
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106 put = strm->next_out - state->x.next > (int)max ? max :
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107 (unsigned)(strm->next_out - state->x.next);
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108 writ = write(state->fd, state->x.next, put);
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109 if (writ < 0) {
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110 gz_error(state, Z_ERRNO, zstrerror());
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111 return -1;
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112 }
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113 state->x.next += writ;
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114 }
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115 if (strm->avail_out == 0) {
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116 strm->avail_out = state->size;
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117 strm->next_out = state->out;
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118 state->x.next = state->out;
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119 }
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120 }
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121
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122 /* compress */
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123 have = strm->avail_out;
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124 ret = deflate(strm, flush);
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125 if (ret == Z_STREAM_ERROR) {
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126 gz_error(state, Z_STREAM_ERROR,
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127 "internal error: deflate stream corrupt");
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128 return -1;
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129 }
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130 have -= strm->avail_out;
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131 } while (have);
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132
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133 /* if that completed a deflate stream, allow another to start */
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134 if (flush == Z_FINISH)
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135 state->reset = 1;
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136
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137 /* all done, no errors */
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138 return 0;
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139 }
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140
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141 /* Compress len zeros to output. Return -1 on a write error or memory
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142 allocation failure by gz_comp(), or 0 on success. */
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9ef72ee5c0b0 Update vendored zlib to 1.3.1
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parents: 1530
diff changeset
143 local int gz_zero(gz_statep state, z_off64_t len) {
1530
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parents:
diff changeset
144 int first;
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parents:
diff changeset
145 unsigned n;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
146 z_streamp strm = &(state->strm);
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
147
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
148 /* consume whatever's left in the input buffer */
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
149 if (strm->avail_in && gz_comp(state, Z_NO_FLUSH) == -1)
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
150 return -1;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
151
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
152 /* compress len zeros (len guaranteed > 0) */
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parents:
diff changeset
153 first = 1;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
154 while (len) {
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
155 n = GT_OFF(state->size) || (z_off64_t)state->size > len ?
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
156 (unsigned)len : state->size;
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parents:
diff changeset
157 if (first) {
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
158 memset(state->in, 0, n);
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
159 first = 0;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
160 }
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
161 strm->avail_in = n;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
162 strm->next_in = state->in;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
163 state->x.pos += n;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
164 if (gz_comp(state, Z_NO_FLUSH) == -1)
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
165 return -1;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
166 len -= n;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
167 }
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
168 return 0;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
169 }
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
170
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
171 /* Write len bytes from buf to file. Return the number of bytes written. If
00d788dac91a Added support for reading gzipped ROMs
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diff changeset
172 the returned value is less than len, then there was an error. */
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9ef72ee5c0b0 Update vendored zlib to 1.3.1
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parents: 1530
diff changeset
173 local z_size_t gz_write(gz_statep state, voidpc buf, z_size_t len) {
1530
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parents:
diff changeset
174 z_size_t put = len;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
175
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parents:
diff changeset
176 /* if len is zero, avoid unnecessary operations */
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diff changeset
177 if (len == 0)
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diff changeset
178 return 0;
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diff changeset
179
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diff changeset
180 /* allocate memory if this is the first time through */
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parents:
diff changeset
181 if (state->size == 0 && gz_init(state) == -1)
00d788dac91a Added support for reading gzipped ROMs
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diff changeset
182 return 0;
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parents:
diff changeset
183
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
184 /* check for seek request */
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
185 if (state->seek) {
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
186 state->seek = 0;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
187 if (gz_zero(state, state->skip) == -1)
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
188 return 0;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
189 }
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
190
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
191 /* 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
192 if (len < state->size) {
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
193 /* copy to input buffer, compress when full */
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parents:
diff changeset
194 do {
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
195 unsigned have, copy;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
196
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
197 if (state->strm.avail_in == 0)
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
198 state->strm.next_in = state->in;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
199 have = (unsigned)((state->strm.next_in + state->strm.avail_in) -
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
200 state->in);
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
201 copy = state->size - have;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
202 if (copy > len)
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9ef72ee5c0b0 Update vendored zlib to 1.3.1
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diff changeset
203 copy = (unsigned)len;
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parents:
diff changeset
204 memcpy(state->in + have, buf, copy);
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
205 state->strm.avail_in += copy;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
206 state->x.pos += copy;
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parents:
diff changeset
207 buf = (const char *)buf + copy;
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parents:
diff changeset
208 len -= copy;
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parents:
diff changeset
209 if (len && gz_comp(state, Z_NO_FLUSH) == -1)
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
210 return 0;
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parents:
diff changeset
211 } while (len);
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
212 }
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parents:
diff changeset
213 else {
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
214 /* consume whatever's left in the input buffer */
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
215 if (state->strm.avail_in && gz_comp(state, Z_NO_FLUSH) == -1)
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
216 return 0;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
217
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
218 /* directly compress user buffer to file */
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parents:
diff changeset
219 state->strm.next_in = (z_const Bytef *)buf;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
220 do {
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
221 unsigned n = (unsigned)-1;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
222 if (n > len)
2690
9ef72ee5c0b0 Update vendored zlib to 1.3.1
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diff changeset
223 n = (unsigned)len;
1530
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parents:
diff changeset
224 state->strm.avail_in = n;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
225 state->x.pos += n;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
226 if (gz_comp(state, Z_NO_FLUSH) == -1)
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
227 return 0;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
228 len -= n;
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parents:
diff changeset
229 } while (len);
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
230 }
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
231
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
232 /* input was all buffered or compressed */
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
233 return put;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
234 }
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
235
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
236 /* -- see zlib.h -- */
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9ef72ee5c0b0 Update vendored zlib to 1.3.1
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parents: 1530
diff changeset
237 int ZEXPORT gzwrite(gzFile file, voidpc buf, unsigned len) {
1530
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parents:
diff changeset
238 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
239
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
240 /* get internal structure */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
241 if (file == NULL)
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
242 return 0;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
243 state = (gz_statep)file;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
244
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
245 /* 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
246 if (state->mode != GZ_WRITE || state->err != Z_OK)
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
247 return 0;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
248
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
249 /* 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
250 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
251 if ((int)len < 0) {
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
252 gz_error(state, Z_DATA_ERROR, "requested length does not fit in int");
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
253 return 0;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
254 }
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
255
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
256 /* 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
257 return (int)gz_write(state, buf, len);
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
258 }
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
259
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
260 /* -- see zlib.h -- */
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9ef72ee5c0b0 Update vendored zlib to 1.3.1
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parents: 1530
diff changeset
261 z_size_t ZEXPORT gzfwrite(voidpc buf, z_size_t size, z_size_t nitems,
9ef72ee5c0b0 Update vendored zlib to 1.3.1
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parents: 1530
diff changeset
262 gzFile file) {
1530
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
263 z_size_t len;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
264 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
265
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
266 /* get internal structure */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
267 if (file == NULL)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
268 return 0;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
269 state = (gz_statep)file;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
270
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
271 /* 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
272 if (state->mode != GZ_WRITE || state->err != Z_OK)
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
273 return 0;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
274
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
275 /* compute bytes to read -- error on overflow */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
276 len = nitems * size;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
277 if (size && len / size != nitems) {
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
278 gz_error(state, Z_STREAM_ERROR, "request does not fit in a size_t");
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
279 return 0;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
280 }
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
281
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
282 /* write len bytes to buf, return the number of full items written */
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
283 return len ? gz_write(state, buf, len) / size : 0;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
284 }
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
285
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
286 /* -- see zlib.h -- */
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parents: 1530
diff changeset
287 int ZEXPORT gzputc(gzFile file, int c) {
1530
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parents:
diff changeset
288 unsigned have;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
289 unsigned char buf[1];
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
290 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
291 z_streamp strm;
00d788dac91a Added support for reading gzipped ROMs
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parents:
diff changeset
292
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
293 /* get internal structure */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
294 if (file == NULL)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
295 return -1;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
296 state = (gz_statep)file;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
297 strm = &(state->strm);
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 /* 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
300 if (state->mode != GZ_WRITE || state->err != Z_OK)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
301 return -1;
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 /* check for seek request */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
304 if (state->seek) {
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
305 state->seek = 0;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
306 if (gz_zero(state, state->skip) == -1)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
307 return -1;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
308 }
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
309
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
310 /* 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
311 initialized) */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
312 if (state->size) {
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
313 if (strm->avail_in == 0)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
314 strm->next_in = state->in;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
315 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
316 if (have < state->size) {
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
317 state->in[have] = (unsigned char)c;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
318 strm->avail_in++;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
319 state->x.pos++;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
320 return c & 0xff;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
321 }
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
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
324 /* 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
325 buf[0] = (unsigned char)c;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
326 if (gz_write(state, buf, 1) != 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 return c & 0xff;
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
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
331 /* -- see zlib.h -- */
2690
9ef72ee5c0b0 Update vendored zlib to 1.3.1
Michael Pavone <pavone@retrodev.com>
parents: 1530
diff changeset
332 int ZEXPORT gzputs(gzFile file, const char *s) {
9ef72ee5c0b0 Update vendored zlib to 1.3.1
Michael Pavone <pavone@retrodev.com>
parents: 1530
diff changeset
333 z_size_t len, put;
1530
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
334 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
335
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
336 /* get internal structure */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
337 if (file == NULL)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
338 return -1;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
339 state = (gz_statep)file;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
340
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
341 /* 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
342 if (state->mode != GZ_WRITE || state->err != Z_OK)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
343 return -1;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
344
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
345 /* write string */
2690
9ef72ee5c0b0 Update vendored zlib to 1.3.1
Michael Pavone <pavone@retrodev.com>
parents: 1530
diff changeset
346 len = strlen(s);
9ef72ee5c0b0 Update vendored zlib to 1.3.1
Michael Pavone <pavone@retrodev.com>
parents: 1530
diff changeset
347 if ((int)len < 0 || (unsigned)len != len) {
9ef72ee5c0b0 Update vendored zlib to 1.3.1
Michael Pavone <pavone@retrodev.com>
parents: 1530
diff changeset
348 gz_error(state, Z_STREAM_ERROR, "string length does not fit in int");
9ef72ee5c0b0 Update vendored zlib to 1.3.1
Michael Pavone <pavone@retrodev.com>
parents: 1530
diff changeset
349 return -1;
9ef72ee5c0b0 Update vendored zlib to 1.3.1
Michael Pavone <pavone@retrodev.com>
parents: 1530
diff changeset
350 }
9ef72ee5c0b0 Update vendored zlib to 1.3.1
Michael Pavone <pavone@retrodev.com>
parents: 1530
diff changeset
351 put = gz_write(state, s, len);
9ef72ee5c0b0 Update vendored zlib to 1.3.1
Michael Pavone <pavone@retrodev.com>
parents: 1530
diff changeset
352 return put < len ? -1 : (int)len;
1530
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
353 }
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
354
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
355 #if defined(STDC) || defined(Z_HAVE_STDARG_H)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
356 #include <stdarg.h>
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
357
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
358 /* -- see zlib.h -- */
2690
9ef72ee5c0b0 Update vendored zlib to 1.3.1
Michael Pavone <pavone@retrodev.com>
parents: 1530
diff changeset
359 int ZEXPORTVA gzvprintf(gzFile file, const char *format, va_list va) {
1530
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
360 int len;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
361 unsigned left;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
362 char *next;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
363 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
364 z_streamp strm;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
365
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
366 /* get internal structure */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
367 if (file == NULL)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
368 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
369 state = (gz_statep)file;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
370 strm = &(state->strm);
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
371
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
372 /* 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
373 if (state->mode != GZ_WRITE || state->err != Z_OK)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
374 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
375
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
376 /* make sure we have some buffer space */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
377 if (state->size == 0 && gz_init(state) == -1)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
378 return state->err;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
379
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
380 /* check for seek request */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
381 if (state->seek) {
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
382 state->seek = 0;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
383 if (gz_zero(state, state->skip) == -1)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
384 return state->err;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
385 }
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 /* 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
388 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
389 be state->size bytes available after the current contents */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
390 if (strm->avail_in == 0)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
391 strm->next_in = state->in;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
392 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
393 next[state->size - 1] = 0;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
394 #ifdef NO_vsnprintf
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
395 # ifdef HAS_vsprintf_void
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
396 (void)vsprintf(next, format, va);
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
397 for (len = 0; len < state->size; len++)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
398 if (next[len] == 0) break;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
399 # else
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
400 len = vsprintf(next, format, va);
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
401 # endif
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
402 #else
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
403 # ifdef HAS_vsnprintf_void
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
404 (void)vsnprintf(next, state->size, format, va);
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
405 len = strlen(next);
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
406 # else
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
407 len = vsnprintf(next, state->size, format, va);
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
408 # endif
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
409 #endif
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
410
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
411 /* check that printf() results fit in buffer */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
412 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
413 return 0;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
414
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
415 /* 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
416 strm->avail_in += (unsigned)len;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
417 state->x.pos += len;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
418 if (strm->avail_in >= state->size) {
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
419 left = strm->avail_in - state->size;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
420 strm->avail_in = state->size;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
421 if (gz_comp(state, Z_NO_FLUSH) == -1)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
422 return state->err;
2690
9ef72ee5c0b0 Update vendored zlib to 1.3.1
Michael Pavone <pavone@retrodev.com>
parents: 1530
diff changeset
423 memmove(state->in, state->in + state->size, left);
1530
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
424 strm->next_in = state->in;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
425 strm->avail_in = left;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
426 }
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
427 return len;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
428 }
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
429
2690
9ef72ee5c0b0 Update vendored zlib to 1.3.1
Michael Pavone <pavone@retrodev.com>
parents: 1530
diff changeset
430 int ZEXPORTVA gzprintf(gzFile file, const char *format, ...) {
1530
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
431 va_list va;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
432 int ret;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
433
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
434 va_start(va, format);
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
435 ret = gzvprintf(file, format, va);
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
436 va_end(va);
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
437 return ret;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
438 }
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
439
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
440 #else /* !STDC && !Z_HAVE_STDARG_H */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
441
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
442 /* -- see zlib.h -- */
2690
9ef72ee5c0b0 Update vendored zlib to 1.3.1
Michael Pavone <pavone@retrodev.com>
parents: 1530
diff changeset
443 int ZEXPORTVA gzprintf(gzFile file, const char *format, int a1, int a2, int a3,
9ef72ee5c0b0 Update vendored zlib to 1.3.1
Michael Pavone <pavone@retrodev.com>
parents: 1530
diff changeset
444 int a4, int a5, int a6, int a7, int a8, int a9, int a10,
9ef72ee5c0b0 Update vendored zlib to 1.3.1
Michael Pavone <pavone@retrodev.com>
parents: 1530
diff changeset
445 int a11, int a12, int a13, int a14, int a15, int a16,
9ef72ee5c0b0 Update vendored zlib to 1.3.1
Michael Pavone <pavone@retrodev.com>
parents: 1530
diff changeset
446 int a17, int a18, int a19, int a20) {
1530
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
447 unsigned len, left;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
448 char *next;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
449 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
450 z_streamp strm;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
451
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
452 /* get internal structure */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
453 if (file == NULL)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
454 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
455 state = (gz_statep)file;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
456 strm = &(state->strm);
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
457
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
458 /* check that can really pass pointer in ints */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
459 if (sizeof(int) != sizeof(void *))
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
460 return Z_STREAM_ERROR;
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 /* 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
463 if (state->mode != GZ_WRITE || state->err != Z_OK)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
464 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
465
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
466 /* make sure we have some buffer space */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
467 if (state->size == 0 && gz_init(state) == -1)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
468 return state->error;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
469
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
470 /* check for seek request */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
471 if (state->seek) {
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
472 state->seek = 0;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
473 if (gz_zero(state, state->skip) == -1)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
474 return state->error;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
475 }
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 /* 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
478 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
479 be state->size bytes available after the current contents */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
480 if (strm->avail_in == 0)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
481 strm->next_in = state->in;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
482 next = (char *)(strm->next_in + strm->avail_in);
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
483 next[state->size - 1] = 0;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
484 #ifdef NO_snprintf
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
485 # ifdef HAS_sprintf_void
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
486 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
487 a13, a14, a15, a16, a17, a18, a19, a20);
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
488 for (len = 0; len < size; len++)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
489 if (next[len] == 0)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
490 break;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
491 # else
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
492 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
493 a12, a13, a14, a15, a16, a17, a18, a19, a20);
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
494 # endif
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
495 #else
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
496 # ifdef HAS_snprintf_void
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
497 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
498 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
499 len = strlen(next);
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
500 # else
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
501 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
502 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
503 # endif
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
504 #endif
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
505
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
506 /* check that printf() results fit in buffer */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
507 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
508 return 0;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
509
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
510 /* 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
511 strm->avail_in += len;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
512 state->x.pos += len;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
513 if (strm->avail_in >= state->size) {
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
514 left = strm->avail_in - state->size;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
515 strm->avail_in = state->size;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
516 if (gz_comp(state, Z_NO_FLUSH) == -1)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
517 return state->err;
2690
9ef72ee5c0b0 Update vendored zlib to 1.3.1
Michael Pavone <pavone@retrodev.com>
parents: 1530
diff changeset
518 memmove(state->in, state->in + state->size, left);
1530
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
519 strm->next_in = state->in;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
520 strm->avail_in = left;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
521 }
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
522 return (int)len;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
523 }
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
524
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
525 #endif
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
526
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
527 /* -- see zlib.h -- */
2690
9ef72ee5c0b0 Update vendored zlib to 1.3.1
Michael Pavone <pavone@retrodev.com>
parents: 1530
diff changeset
528 int ZEXPORT gzflush(gzFile file, int flush) {
1530
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
529 gz_statep state;
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 /* get internal structure */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
532 if (file == NULL)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
533 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
534 state = (gz_statep)file;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
535
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
536 /* 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
537 if (state->mode != GZ_WRITE || state->err != Z_OK)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
538 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
539
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
540 /* check flush parameter */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
541 if (flush < 0 || flush > Z_FINISH)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
542 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
543
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
544 /* check for seek request */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
545 if (state->seek) {
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
546 state->seek = 0;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
547 if (gz_zero(state, state->skip) == -1)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
548 return state->err;
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
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
551 /* compress remaining data with requested flush */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
552 (void)gz_comp(state, flush);
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
553 return state->err;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
554 }
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
555
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
556 /* -- see zlib.h -- */
2690
9ef72ee5c0b0 Update vendored zlib to 1.3.1
Michael Pavone <pavone@retrodev.com>
parents: 1530
diff changeset
557 int ZEXPORT gzsetparams(gzFile file, int level, int strategy) {
1530
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
558 gz_statep state;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
559 z_streamp strm;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
560
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
561 /* get internal structure */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
562 if (file == NULL)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
563 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
564 state = (gz_statep)file;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
565 strm = &(state->strm);
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
566
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
567 /* check that we're writing and that there's no error */
2690
9ef72ee5c0b0 Update vendored zlib to 1.3.1
Michael Pavone <pavone@retrodev.com>
parents: 1530
diff changeset
568 if (state->mode != GZ_WRITE || state->err != Z_OK || state->direct)
1530
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
569 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
570
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
571 /* if no change is requested, then do nothing */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
572 if (level == state->level && strategy == state->strategy)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
573 return Z_OK;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
574
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
575 /* check for seek request */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
576 if (state->seek) {
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
577 state->seek = 0;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
578 if (gz_zero(state, state->skip) == -1)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
579 return state->err;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
580 }
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
581
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
582 /* change compression parameters for subsequent input */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
583 if (state->size) {
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
584 /* flush previous input with previous parameters before changing */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
585 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
586 return state->err;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
587 deflateParams(strm, level, strategy);
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
588 }
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
589 state->level = level;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
590 state->strategy = strategy;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
591 return Z_OK;
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
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
594 /* -- see zlib.h -- */
2690
9ef72ee5c0b0 Update vendored zlib to 1.3.1
Michael Pavone <pavone@retrodev.com>
parents: 1530
diff changeset
595 int ZEXPORT gzclose_w(gzFile file) {
1530
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
596 int ret = Z_OK;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
597 gz_statep state;
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 /* get internal structure */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
600 if (file == NULL)
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 state = (gz_statep)file;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
603
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
604 /* check that we're writing */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
605 if (state->mode != GZ_WRITE)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
606 return Z_STREAM_ERROR;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
607
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
608 /* check for seek request */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
609 if (state->seek) {
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
610 state->seek = 0;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
611 if (gz_zero(state, state->skip) == -1)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
612 ret = state->err;
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
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
615 /* flush, free memory, and close file */
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
616 if (gz_comp(state, Z_FINISH) == -1)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
617 ret = state->err;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
618 if (state->size) {
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
619 if (!state->direct) {
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
620 (void)deflateEnd(&(state->strm));
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
621 free(state->out);
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
622 }
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
623 free(state->in);
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 gz_error(state, Z_OK, NULL);
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
626 free(state->path);
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
627 if (close(state->fd) == -1)
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
628 ret = Z_ERRNO;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
629 free(state);
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
630 return ret;
00d788dac91a Added support for reading gzipped ROMs
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
631 }