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 [-s] <dllname>\n", pprog_name);
  51     return;
  52 }
  53
  54 int main(int argc, char *argv[])
  55 {
  56     int         rc;
  57     int     silent=0;
  58     void        *phandle;
  59     char        *(*pfun)(void);
  60
  61         if ( argc < 2 || argc > 4) {
  62         usage();
  63         return 1;
  64     }
  65
  66     if ( !strcmp(argv[1],"-s") ) {
  67         silent = 1;
  68         ++argv, --argc;
  69     }
  70
  71     if ( (rc = access( argv[1], R_OK )) == -1 ) {
  72         fprintf(stderr, "%s: ERROR: %s: %s\n",
  73                 pprog_name, argv[1], strerror(errno));
  74         return 2;
  75     }
  76
  77         if (!silent) printf("Checking DLL %s ...", argv[1]);
  78     fflush(stdout);
  79
  80     if ( (phandle = dlopen(argv[1], RTLD_NOW)) != NULL ) {
  81         if  ( (pfun = (char *(*)(void))dlsym(phandle, psymbol)) != NULL ) {
  82                         if (!silent) printf(": ok\n");
  83         }
  84         else
  85         {
  86             printf(": WARNING: %s\n", dlerror());
  87         }
  88 #ifdef NO_UNLOAD_CHECK
  89         _exit(0);
  90 #else
  91         dlclose(phandle);
  92 #endif
  93         return 0;
  94     }
  95
  96     printf(": ERROR: %s\n", dlerror());
  97     return 3;
  98 }
  99
 100