RET_SETGRENT
vsetgrent(void)
{
vendgrent();
#if defined(__FreeBSD__)
return 0;
#endif
}
static struct group *
vnextgrent(char const *nam, gid_t gid, int doclose)
{
struct group *gr;
char *line;
size_t linecap;
ssize_t linelen;
gr = NULL;
line = NULL;
linecap = 0;
linelen = 0;
if (grp_fp != NULL || (grp_fp = fopen(getgrpath(_GROUP), "r")) != NULL) {
while ((linelen = getline(&line, &linecap, grp_fp)) > 0) {
/* Skip comments and empty lines */
if (*line == '\n' || *line == '#')
continue;
/* trim latest \n */
if (line[linelen - 1 ] == '\n')
line[linelen - 1] = '\0';
gr = gr_scan(line);
if (gid != (gid_t)-1) {
if (gid == gr->gr_gid)
break;
} else if (nam != NULL) {
if (strcmp(nam, gr->gr_name) == 0)
break;
} else
break;
free(gr);
gr = NULL;
}
if (doclose)
vendgrent();
}
free(line);
return (gr);
}
static struct group *
vnextgrent(char const * nam, gid_t gid, int doclose)
{
struct group * gr = NULL;
static char * grtmp = NULL;
static int grlen = 0;
static char ** mems = NULL;
static int memlen = 0;
extendline(&grtmp, &grlen, MAXPATHLEN);
strlcpy(grtmp, getgrpath(_GROUP), MAXPATHLEN);
if (grp_fp != NULL || (grp_fp = fopen(grtmp, "r")) != NULL) {
int done = 0;
static struct group grp;
while (!done && fgets(grtmp, grlen, grp_fp) != NULL)
{
int i, quickout = 0;
int mno = 0;
char * q, * p;
char * sep = ":\n";
if ((p = strchr(grtmp, '\n')) == NULL) {
int l;
extendline(&grtmp, &grlen, grlen + PWBUFSZ);
l = strlen(grtmp);
if (fgets(grtmp + l, grlen - l, grp_fp) == NULL)
break; /* No newline terminator on last line */
}
/* Skip comments and empty lines */
if (*grtmp == '\n' || *grtmp == '#')
continue;
i = 0;
q = p = grtmp;
bzero(&grp, sizeof grp);
extendarray(&mems, &memlen, 200);
while (!quickout && (p = strsep(&q, sep)) != NULL) {
switch (i++)
{
case 0: /* groupname */
grp.gr_name = p;
if (nam) {
if (strcmp(nam, p) == 0)
done = 1;
else
quickout = 1;
}
break;
case 1: /* password */
grp.gr_passwd = p;
break;
case 2: /* gid */
grp.gr_gid = atoi(p);
if (gid != (gid_t)-1) {
if (gid == (gid_t)grp.gr_gid)
done = 1;
else
quickout = 1;
} else if (nam == NULL)
done = 1;
break;
case 3:
q = p;
sep = ",\n";
break;
default:
if (*p) {
extendarray(&mems, &memlen, mno + 2);
mems[mno++] = p;
}
break;
}
}
grp.gr_mem = mems;
mems[mno] = NULL;
}
if (doclose)
vendgrent();
if (done && grp.gr_name) {
gr = &grp;
CKNULL(grp.gr_passwd);
}
}
return gr;
}
