1 /*
2 * Copyright 2016-2021 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10 #include <string.h>
11 #include <stdlib.h> /* For NULL */
12 #include <openssl/macros.h> /* For NON_EMPTY_TRANSLATION_UNIT */
13 #include <openssl/e_os2.h>
14 #include "simpledynamic.h"
15
16 #if defined(DSO_DLFCN) || defined(DSO_VMS)
17
sd_load(const char * filename,SD * lib,int type)18 int sd_load(const char *filename, SD *lib, int type)
19 {
20 int dl_flags = type;
21 #ifdef _AIX
22 if (filename[strlen(filename) - 1] == ')')
23 dl_flags |= RTLD_MEMBER;
24 #endif
25 *lib = dlopen(filename, dl_flags);
26 return *lib == NULL ? 0 : 1;
27 }
28
sd_sym(SD lib,const char * symname,SD_SYM * sym)29 int sd_sym(SD lib, const char *symname, SD_SYM *sym)
30 {
31 *sym = dlsym(lib, symname);
32 return *sym != NULL;
33 }
34
sd_close(SD lib)35 int sd_close(SD lib)
36 {
37 return dlclose(lib) != 0 ? 0 : 1;
38 }
39
sd_error(void)40 const char *sd_error(void)
41 {
42 return dlerror();
43 }
44
45 #elif defined(DSO_WIN32)
46
sd_load(const char * filename,SD * lib,ossl_unused int type)47 int sd_load(const char *filename, SD *lib, ossl_unused int type)
48 {
49 *lib = LoadLibraryA(filename);
50 return *lib == NULL ? 0 : 1;
51 }
52
sd_sym(SD lib,const char * symname,SD_SYM * sym)53 int sd_sym(SD lib, const char *symname, SD_SYM *sym)
54 {
55 *sym = (SD_SYM)GetProcAddress(lib, symname);
56 return *sym != NULL;
57 }
58
sd_close(SD lib)59 int sd_close(SD lib)
60 {
61 return FreeLibrary(lib) == 0 ? 0 : 1;
62 }
63
sd_error(void)64 const char *sd_error(void)
65 {
66 static char buffer[255];
67
68 buffer[0] = '\0';
69 FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, NULL, GetLastError(), 0,
70 buffer, sizeof(buffer), NULL);
71 return buffer;
72 }
73
74 #else
75
76 NON_EMPTY_TRANSLATION_UNIT
77
78 #endif
79