/* check that our directory exists and try to create it if it doesn't
return -1 on failure, 0 otherwise.
*/
int check_directory(const char* path) /*@globals errno,stderr@*/
{
int rc;
struct stat sb;
if (path == NULL || *path == '\0') {
return -1;
}
rc = stat(path, &sb);
if (rc < 0) {
if (ENOENT==errno) {
if (bf_mkdir(path, S_IRUSR|S_IWUSR|S_IXUSR)) {
fprintf(stderr, "Error creating directory '%s': %s\n",
path, strerror(errno));
return -1;
} else if (verbose > 0) {
fprintf(dbgout, "Created directory %s .\n", path);
}
return 0;
} else {
fprintf(stderr, "Error accessing directory '%s': %s\n",
path, strerror(errno));
return -1;
}
} else {
if (! S_ISDIR(sb.st_mode)) {
fprintf(stderr, "Error: %s is not a directory.\n", path);
}
}
return 0;
}
static int db_try_glock(bfpath *bfp, short locktype, int lockcmd)
{
int ret;
char *t;
/* lock */
ret = bf_mkdir(bfp->dirname, DIR_MODE);
if (ret && errno != EEXIST) {
print_error(__FILE__, __LINE__, "mkdir(%s): %s",
bfp->dirname, strerror(errno));
exit(EX_ERROR);
}
t = mxcat(bfp->dirname, DIRSEP_S, "lockfile-d", NULL);
/* All we are interested in is that this file exists, we'll close it
* right away as plock down will open it again */
ret = open(t, O_RDWR|O_CREAT|O_EXCL, DS_MODE);
if (ret < 0 && errno != EEXIST) {
print_error(__FILE__, __LINE__, "open(%s): %s",
t, strerror(errno));
exit(EX_ERROR);
}
if (ret >= 0)
close(ret);
lockfd = plock(t, locktype, lockcmd);
if (lockfd < 0 && errno != EAGAIN && errno != EACCES) {
print_error(__FILE__, __LINE__, "lock(%s): %s",
t, strerror(errno));
exit(EX_ERROR);
}
xfree(t);
/* lock set up */
return lockfd;
}