soltools/checkdll/checkdll.c

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   5  * Copyright 2008 by Sun Microsystems, Inc.
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   7  * OpenOffice.org - a multi-platform office productivity suite
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   9  * $RCSfile: checkdll.c,v $
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  30
  31
  32 #include <stdio.h>
  33 #include <string.h>
  34 #include <errno.h>
  35 #include <unistd.h>
  36 #include <dlfcn.h>
  37
  38 /*
  39  * NOTE: Since no one is really interested in correct unload behavior I've
  40  * disabled the shared library unload check. If you want to reenable it comment
  41  * the following line out
  42  */
  43 #define NO_UNLOAD_CHECK
  44
  45 static const char *pprog_name   = "checkdll";
  46 static const char *psymbol              = "GetVersionInfo";
  47
  48 void usage()
  49 {
  50     fprintf(stderr, "usage: %s <dllname>\n", pprog_name);
  51     return;
  52 }
  53
  54 int main(int argc, char *argv[])
  55 {
  56     int         rc;
  57     void        *phandle;
  58     char        *(*pfun)(void);
  59
  60     if ( argc < 2 || argc > 3) {
  61         usage();
  62         return 1;
  63     }
  64
  65     if ( (rc = access( argv[1], R_OK )) == -1 ) {
  66         fprintf(stderr, "%s: ERROR: %s: %s\n",
  67                 pprog_name, argv[1], strerror(errno));
  68         return 2;
  69     }
  70
  71     printf("Checking DLL %s ...", argv[1]);
  72     fflush(stdout);
  73
  74     if ( (phandle = dlopen(argv[1], RTLD_NOW)) != NULL ) {
  75         if  ( (pfun = (char *(*)(void))dlsym(phandle, psymbol)) != NULL ) {
  76             printf(": ok\n");
  77         }
  78         else
  79         {
  80             printf(": WARNING: %s\n", dlerror());
  81         }
  82 #ifdef NO_UNLOAD_CHECK
  83         _exit(0);
  84 #else
  85         dlclose(phandle);
  86 #endif
  87         return 0;
  88     }
  89
  90     printf(": ERROR: %s\n", dlerror());
  91     return 3;
  92 }
  93
  94