Commit | Line | Data |
---|---|---|
c692d670 | 1 | #include "dlfcn.h" |
2 | ||
3 | #define INCL_BASE | |
4 | #include <os2.h> | |
5 | ||
6 | static ULONG retcode; | |
ed344e4f | 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 | ||
ed344e4f | 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 | ||
ed344e4f | 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 | { | |
ed344e4f | 61 | static char buf[700]; |
c692d670 | 62 | ULONG len; |
63 | ||
64 | if (retcode == 0) | |
65 | return NULL; | |
ed344e4f IZ |
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'; |
ed344e4f IZ |
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 | ||
403d6f8e GS |
90 | int |
91 | dlclose(void *handle) | |
92 | { | |
93 | ULONG rc; | |
94 | ||
95 | if ((rc = DosFreeModule((HMODULE)handle)) == 0) return 0; | |
96 | ||
97 | retcode = rc; | |
98 | return 2; | |
99 | } |