/*
* Copyright (c) 2012-2013 Todd C. Miller <Todd.Miller@courtesan.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <config.h>
#include <sys/types.h>
#include <stdio.h>
#ifdef STDC_HEADERS
# include <stdlib.h>
# include <stddef.h>
#else
# ifdef HAVE_STDLIB_H
# include <stdlib.h>
# endif
#endif /* STDC_HEADERS */
#ifdef HAVE_STRING_H
# if defined(HAVE_MEMORY_H) && !defined(STDC_HEADERS)
# include <memory.h>
# endif
# include <string.h>
#endif /* HAVE_STRING_H */
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif /* HAVE_STRINGS_H */
#ifdef HAVE_DLOPEN
# include <dlfcn.h>
#else
# include "compat/dlfcn.h"
#endif
#include <errno.h>
#include <limits.h>
#include "missing.h"
#include "fatal.h"
#ifndef LINE_MAX
# define LINE_MAX 2048
#endif
__dso_public int main(int argc, char *argv[]);
static void
usage(void)
{
fprintf(stderr, "usage: load_symbols plugin.so symbols_file\n");
exit(1);
}
int
main(int argc, char *argv[])
{
void *handle, *sym;
const char *plugin_path;
const char *symbols_file;
char *cp, line[LINE_MAX];
FILE *fp;
int ntests = 0, errors = 0;
#if !defined(HAVE_GETPROGNAME) && !defined(HAVE___PROGNAME)
setprogname(argc > 0 ? argv[0] : "check_symbols");
#endif
if (argc != 3)
usage();
plugin_path = argv[1];
symbols_file = argv[2];
handle = dlopen(plugin_path, RTLD_LAZY|RTLD_GLOBAL);
if (handle == NULL)
fatalx_nodebug("unable to dlopen %s: %s", plugin_path, dlerror());
fp = fopen(symbols_file, "r");
if (fp == NULL)
fatal_nodebug("unable to open %s", symbols_file);
while (fgets(line, sizeof(line), fp) != NULL) {
ntests++;
if ((cp = strchr(line, '\n')) != NULL)
*cp = '\0';
sym = dlsym(handle, line);
if (sym == NULL) {
printf("%s: test %d: unable to resolve symbol %s: %s\n",
getprogname(), ntests, line, dlerror());
errors++;
}
}
/*
* Make sure unexported symbols are not available.
*/
ntests++;
sym = dlsym(handle, "user_in_group");
if (sym != NULL) {
printf("%s: test %d: able to resolve local symbol user_in_group\n",
getprogname(), ntests);
errors++;
}
dlclose(handle);
printf("%s: %d tests run, %d errors, %d%% success rate\n", getprogname(),
ntests, errors, (ntests - errors) * 100 / ntests);
exit(errors);
}
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