Commit | Line | Data |
c692d670 |
1 | #include "dlfcn.h" |
2 | |
3 | #define INCL_BASE |
4 | #include <os2.h> |
5 | |
6 | static ULONG retcode; |
6e7c9e4d |
7 | static char fail[300]; |
c692d670 |
8 | |
9 | void * |
10 | dlopen(char *path, int mode) |
11 | { |
12 | HMODULE handle; |
13 | char tmp[260], *beg, *dot; |
c692d670 |
14 | ULONG rc; |
15 | |
6e7c9e4d |
16 | fail[0] = 0; |
c692d670 |
17 | if ((rc = DosLoadModule(fail, sizeof fail, path, &handle)) == 0) |
18 | return (void *)handle; |
19 | |
20 | retcode = rc; |
21 | |
22 | /* Not found. Check for non-FAT name and try truncated name. */ |
23 | /* Don't know if this helps though... */ |
24 | for (beg = dot = path + strlen(path); |
25 | beg > path && !strchr(":/\\", *(beg-1)); |
26 | beg--) |
27 | if (*beg == '.') |
28 | dot = beg; |
29 | if (dot - beg > 8) { |
30 | int n = beg+8-path; |
31 | memmove(tmp, path, n); |
32 | memmove(tmp+n, dot, strlen(dot)+1); |
33 | if (DosLoadModule(fail, sizeof fail, tmp, &handle) == 0) |
34 | return (void *)handle; |
35 | } |
36 | |
37 | return NULL; |
38 | } |
39 | |
40 | void * |
41 | dlsym(void *handle, char *symbol) |
42 | { |
43 | ULONG rc, type; |
44 | PFN addr; |
45 | |
6e7c9e4d |
46 | fail[0] = 0; |
c692d670 |
47 | rc = DosQueryProcAddr((HMODULE)handle, 0, symbol, &addr); |
48 | if (rc == 0) { |
49 | rc = DosQueryProcType((HMODULE)handle, 0, symbol, &type); |
50 | if (rc == 0 && type == PT_32BIT) |
51 | return (void *)addr; |
52 | rc = ERROR_CALL_NOT_IMPLEMENTED; |
53 | } |
54 | retcode = rc; |
55 | return NULL; |
56 | } |
57 | |
58 | char * |
59 | dlerror(void) |
60 | { |
6e7c9e4d |
61 | static char buf[700]; |
c692d670 |
62 | ULONG len; |
63 | |
64 | if (retcode == 0) |
65 | return NULL; |
6e7c9e4d |
66 | if (DosGetMessage(NULL, 0, buf, sizeof buf - 1, retcode, |
67 | "OSO001.MSG", &len)) { |
68 | if (fail[0]) |
69 | sprintf(buf, |
70 | "OS/2 system error code %d, possible problematic module: '%s'", |
71 | retcode, fail); |
72 | else |
73 | sprintf(buf, "OS/2 system error code %d", retcode); |
74 | } else { |
c692d670 |
75 | buf[len] = '\0'; |
6e7c9e4d |
76 | if (len && buf[len - 1] == '\n') |
77 | buf[--len] = 0; |
78 | if (len && buf[len - 1] == '\r') |
79 | buf[--len] = 0; |
80 | if (len && buf[len - 1] == '.') |
81 | buf[--len] = 0; |
82 | if (fail[0] && len < 300) |
83 | sprintf(buf + len, ", possible problematic module: '%s'", |
84 | fail); |
85 | } |
c692d670 |
86 | retcode = 0; |
87 | return buf; |
88 | } |
89 | |