struct group *getgrent(void)
{
if (group_fp == NULL)
return NULL;
if (!scangr(group_fp, &grent, grbuf, sizeof grbuf))
return NULL;
return &grent;
}
int
initgroups (const char *name, gid_t basegid)
{
char bufgroup[512];
struct group grpbuf;
FILE *grp;
gid_t gitlist[NGROUPS_MAX];
int index = 1;
if (!name) {
errno = EINVAL;
return -1;
}
init_etc_passwd_group();
grp = fopen("/etc/group", "r");
if (grp == NULL) {
return 0;
}
gitlist[0] = basegid;
for (;;) {
int j;
if (!scangr(grp, &grpbuf, bufgroup, sizeof bufgroup)) {
break;
}
if (grpbuf.gr_gid != basegid) {
for (j = 0; grpbuf.gr_mem[j]; j++) {
if (strcmp(grpbuf.gr_mem[j], name) == 0) {
gitlist[index++] = grpbuf.gr_gid;
if (index >= NGROUPS_MAX) {
break;
}
}
}
}
}
fclose(grp);
if (index > 0) {
return setgroups(index, gitlist);
} else {
return 0;
}
}
static int getgr_r(
const char *name,
int gid,
struct group *grp,
char *buffer,
size_t bufsize,
struct group **result
)
{
FILE *fp;
int match;
init_etc_passwd_group();
if ((fp = fopen("/etc/group", "r")) == NULL) {
errno = EINVAL;
return -1;
}
for(;;) {
if (!scangr(fp, grp, buffer, bufsize)) {
errno = EINVAL;
fclose(fp);
return -1;
}
if (name) {
match = (strcmp(grp->gr_name, name) == 0);
}
else {
match = (grp->gr_gid == gid);
}
if (match) {
fclose(fp);
*result = grp;
return 0;
}
}
fclose(fp);
errno = EINVAL;
return -1;
}
static int getgr_r(
const char *name,
int gid,
struct group *grp,
char *buffer,
size_t bufsize,
struct group **result
)
{
FILE *fp;
int match;
init_etc_passwd_group();
if ((fp = fopen("/etc/group", "r")) == NULL)
rtems_set_errno_and_return_minus_one( EINVAL );
for(;;) {
if (!scangr(fp, grp, buffer, bufsize))
goto error_einval;
if (name) {
match = (strcmp(grp->gr_name, name) == 0);
} else {
match = (grp->gr_gid == gid);
}
if (match) {
fclose(fp);
*result = grp;
return 0;
}
}
error_einval:
fclose(fp);
rtems_set_errno_and_return_minus_one( EINVAL );
}
