Function gid_determine

exec/coroparse.c:194–246

}

static int gid_determine (const char *req_group)
{
	int corosync_gid = 0;
	struct group group;
	struct group * grpptr = &group;
	struct group * temp_grp_pt;
	char *grpbuffer;
	int  grplinelen, rc;
	long int id;
	char *ep;

	id = strtol(req_group, &ep, 10);
	if (*req_group != '\0' && *ep == '\0' && id >= 0 && id <= UINT_MAX) {
		return (id);
	}

	grplinelen = sysconf (_SC_GETGR_R_SIZE_MAX);

	if (grplinelen == -1) {
	        grplinelen = 256;
	}

	grpbuffer = malloc (grplinelen);

	while ((rc = getgrnam_r (req_group, grpptr, grpbuffer, grplinelen, &temp_grp_pt)) == ERANGE) {
		char *n;

		grplinelen *= 2;
		if (grplinelen <= 32678) {
			n = realloc (grpbuffer, grplinelen);
			if (n != NULL) {
				grpbuffer = n;
				continue;
			}
		}
	}
	if (rc != 0) {
		free (grpbuffer);
	        sprintf (error_string_response, "getgrnam_r(): %s", strerror(rc));
	        return (-1);
	}
	if (temp_grp_pt == NULL) {
		free (grpbuffer);
	        sprintf (error_string_response,
	                "The '%s' group is not found in /etc/group, please read the documentation.",
	                req_group);
		return (-1);
	}
	corosync_gid = group.gr_gid;
	free (grpbuffer);

	return corosync_gid;
}
static char *strchr_rs (const char *haystack, int byte)
{
	const char *end_address = strchr (haystack, byte);