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