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Detect eaccess (or euidaccess) before using it.

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Reported by Andrew Lindh via the -dev list.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@191367 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Tilghman Lesher
2009-04-30 17:40:58 +00:00
parent 38720ccd3b
commit 91dde03ba8
4 changed files with 22 additions and 7 deletions
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15
main/asterisk.c
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@@ -3433,26 +3433,33 @@ int main(int argc, char *argv[])
if (geteuid() && ast_opt_dump_core) {
if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) < 0) {
ast_log(LOG_WARNING, "Unable to set the process for core dumps after changing to a non-root user. %s\n", strerror(errno));
}
}
}
#endif
{
#if defined(HAVE_EACCESS) || defined(HAVE_EUIDACCESS)
#if defined(HAVE_EUIDACCESS) && !defined(HAVE_EACCESS)
#define eaccess euidaccess
#endif
char dir[PATH_MAX];
if (!getcwd(dir, sizeof(dir)) || eaccess(dir, R_OK | X_OK | F_OK)) {
ast_log(LOG_ERROR, "Unable to access the running directory (%s). Changing to '/' for compatibility.\n", strerror(errno));
/* If we cannot access the CWD, then we couldn't dump core anyway,
* so chdir("/") won't break anything. */
if (chdir("/")) {
ast_log(LOG_ERROR, "chdir() failed?!! %s\n", strerror(errno));
/* chdir(/) should never fail, so this ends up being a no-op */
ast_log(LOG_ERROR, "chdir(\"/\") failed?!! %s\n", strerror(errno));
}
} else if (!ast_opt_no_fork && !ast_opt_dump_core) {
} else
#endif /* defined(HAVE_EACCESS) || defined(HAVE_EUIDACCESS) */
if (!ast_opt_no_fork && !ast_opt_dump_core) {
/* Backgrounding, but no cores, so chdir won't break anything. */
if (chdir("/")) {
ast_log(LOG_ERROR, "Unable to chdir(\"/\") ?!! %s\n", strerror(errno));
}
}
}
#endif
ast_term_init();
printf("%s", term_end());