xref: /openssl/test/simpledynamic.c (revision 54b40531)
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