Mercurial > repos > blastem

annotate util.c @ 767:ea525f600b1d

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
SRAM detection from ROM header is no working correctly again
author Michael Pavone <pavone@retrodev.com>
date Mon, 06 Jul 2015 19:46:46 -0700
parents 206c449eaa81
children 2a25ea5d94f7 2f48a3c187c6
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
495
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1 #include <string.h>
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
2 #include <stdlib.h>
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
3 #include <stdio.h>
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
4 #include <ctype.h>
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
5
496
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
6 #include <sys/types.h>
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
7 #include <sys/stat.h>
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
8 #include <unistd.h>
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
9
495
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
10 char * alloc_concat(char * first, char * second)
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
11 {
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
12 int flen = strlen(first);
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
13 int slen = strlen(second);
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
14 char * ret = malloc(flen + slen + 1);
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
15 memcpy(ret, first, flen);
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
16 memcpy(ret+flen, second, slen+1);
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
17 return ret;
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
18 }
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
19
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
20 char * alloc_concat_m(int num_parts, char ** parts)
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
21 {
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
22 int total = 0;
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
23 for (int i = 0; i < num_parts; i++) {
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
24 total += strlen(parts[i]);
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
25 }
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
26 char * ret = malloc(total + 1);
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
27 *ret = 0;
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
28 for (int i = 0; i < num_parts; i++) {
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
29 strcat(ret, parts[i]);
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
30 }
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
31 return ret;
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
32 }
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
33
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
34 long file_size(FILE * f)
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
35 {
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
36 fseek(f, 0, SEEK_END);
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
37 long fsize = ftell(f);
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
38 fseek(f, 0, SEEK_SET);
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
39 return fsize;
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
40 }
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
41
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
42 char * strip_ws(char * text)
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
43 {
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
44 while (*text && (!isprint(*text) || isblank(*text)))
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
45 {
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
46 text++;
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
47 }
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
48 char * ret = text;
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
49 text = ret + strlen(ret) - 1;
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
50 while (text > ret && (!isprint(*text) || isblank(*text)))
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
51 {
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
52 *text = 0;
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
53 text--;
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
54 }
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
55 return ret;
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
56 }
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
57
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
58 char * split_keyval(char * text)
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
59 {
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
60 while (*text && !isblank(*text))
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
61 {
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
62 text++;
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
63 }
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
64 if (!*text) {
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
65 return text;
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
66 }
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
67 *text = 0;
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
68 return text+1;
39cad98d2789 Allow OpenGL support to be disabled at compile time. Move generic utility functions out of config.c
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
69 }
496
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
70
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
71 static char * exe_str;
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
72
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
73 void set_exe_str(char * str)
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
74 {
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
75 exe_str = str;
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
76 }
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
77
742
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
78 #ifdef _WIN32
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
79 #include "Shlobj.h"
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
80 #include "Windows.h"
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
81
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
82 char * get_home_dir()
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
83 {
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
84 static char path[MAX_PATH];
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
85 SHGetFolderPathA(NULL, CSIDL_PROFILE, NULL, 0, path);
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
86 return path;
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
87 }
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
88
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
89 char * get_exe_dir()
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
90 {
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
91 static char path[MAX_PATH];
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
92 HMODULE module = GetModuleHandleA(NULL);
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
93 GetModuleFileNameA(module, path, MAX_PATH);
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
94
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
95 int pathsize = strlen(path);
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
96 for(char * cur = path + pathsize - 1; cur != path; cur--)
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
97 {
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
98 if (*cur == '\\') {
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
99 *cur = 0;
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
100 break;
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
101 }
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
102 }
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
103 return path;
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
104 }
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
105
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
106 #else
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
107
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
108 char * get_home_dir()
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
109 {
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
110 return getenv("HOME");
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
111 }
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
112
496
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
113 char * readlink_alloc(char * path)
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
114 {
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
115 char * linktext = NULL;
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
116 ssize_t linksize = 512;
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
117 ssize_t cursize = 0;
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
118 do {
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
119 if (linksize > cursize) {
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
120 cursize = linksize;
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
121 if (linktext) {
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
122 free(linktext);
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
123 }
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
124 }
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
125 linktext = malloc(cursize);
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
126 linksize = readlink(path, linktext, cursize-1);
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
127 if (linksize == -1) {
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
128 perror("readlink");
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
129 free(linktext);
559
6b248602ab84 blastem builds and almost works on OS X now
Mike Pavone <pavone@retrodev.com>
parents: 549
diff changeset
130 return NULL;
496
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
131 }
549
32da1e0d5e55 Properly null terminate string returned by readlink in util.c
Michael Pavone <pavone@retrodev.com>
parents: 496
diff changeset
132 } while ((linksize+1) > cursize);
32da1e0d5e55 Properly null terminate string returned by readlink in util.c
Michael Pavone <pavone@retrodev.com>
parents: 496
diff changeset
133 linktext[linksize] = 0;
496
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
134 return linktext;
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
135 }
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
136
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
137 char * get_exe_dir()
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
138 {
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
139 static char * exe_dir;
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
140 if (!exe_dir) {
762
206c449eaa81 Get "portable" builds working on Linux and add a build time check for whether /proc exists
Michael Pavone <pavone@retrodev.com>
parents: 744
diff changeset
141 char * cur;
206c449eaa81 Get "portable" builds working on Linux and add a build time check for whether /proc exists
Michael Pavone <pavone@retrodev.com>
parents: 744
diff changeset
142 #ifndef HAS_PROC
496
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
143 char * linktext = readlink_alloc("/proc/self/exe");
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
144 if (!linktext) {
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
145 goto fallback;
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
146 }
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
147 int linksize = strlen(linktext);
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
148 for(cur = linktext + linksize - 1; cur != linktext; cur--)
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
149 {
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
150 if (*cur == '/') {
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
151 *cur = 0;
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
152 break;
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
153 }
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
154 }
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
155 if (cur == linktext) {
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
156 free(linktext);
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
157 fallback:
762
206c449eaa81 Get "portable" builds working on Linux and add a build time check for whether /proc exists
Michael Pavone <pavone@retrodev.com>
parents: 744
diff changeset
158 #endif
496
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
159 if (!exe_str) {
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
160 fputs("/proc/self/exe is not available and set_exe_str was not called!", stderr);
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
161 }
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
162 int pathsize = strlen(exe_str);
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
163 for(cur = exe_str + pathsize - 1; cur != exe_str; cur--)
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
164 {
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
165 if (*cur == '/') {
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
166 exe_dir = malloc(cur-exe_str+1);
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
167 memcpy(exe_dir, exe_str, cur-exe_str);
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
168 exe_dir[cur-exe_str] = 0;
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
169 break;
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
170 }
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
171 }
762
206c449eaa81 Get "portable" builds working on Linux and add a build time check for whether /proc exists
Michael Pavone <pavone@retrodev.com>
parents: 744
diff changeset
172 #ifndef HAS_PROC
496
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
173 } else {
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
174 exe_dir = linktext;
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
175 }
762
206c449eaa81 Get "portable" builds working on Linux and add a build time check for whether /proc exists
Michael Pavone <pavone@retrodev.com>
parents: 744
diff changeset
176 #endif
496
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
177 }
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
178 return exe_dir;
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents: 495
diff changeset
179 }
742
2e1b3b258523 Make Windows port a little less half-assed
Michael Pavone <pavone@retrodev.com>
parents: 741
diff changeset
180
741
80a67be1770b Initial work on Windows port
Michael Pavone <pavone@retrodev.com>
parents: 549
diff changeset
181 #endif