/*
* Copyright (c) 2010 Todd C. Miller <Todd.Miller@courtesan.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <config.h>
#include <sys/types.h>
#include <stdio.h>
#ifdef STDC_HEADERS
# include <stdlib.h>
# include <stddef.h>
#else
# ifdef HAVE_STDLIB_H
# include <stdlib.h>
# endif
#endif /* STDC_HEADERS */
#ifdef HAVE_STRING_H
# include <string.h>
#endif /* HAVE_STRING_H */
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif /* HAVE_STRINGS_H */
#include <grp.h>
#include "missing.h"
#ifdef HAVE_GETGRSET
/*
* BSD-compatible getgrouplist(3) using getgrset(3)
*/
int
getgrouplist(const char *name, gid_t basegid, gid_t *groups, int *ngroupsp)
{
char *cp, *grset = NULL;
int i, ngroups = 1;
int grpsize = *ngroupsp;
int rval = -1;
gid_t gid;
/* We support BSD semantics where the first element is the base gid */
if (grpsize <= 0)
return -1;
groups[0] = basegid;
#ifdef HAVE_SETAUTHDB
aix_setauthdb((char *) name);
#endif
if ((grset = getgrset(name)) != NULL) {
for (cp = strtok(grset, ","); cp != NULL; cp = strtok(NULL, ",")) {
gid = atoi(cp);
if (gid != basegid) {
if (ngroups == grpsize)
goto done;
groups[ngroups++] = gid;
}
}
}
rval = 0;
done:
efree(grset);
#ifdef HAVE_SETAUTHDB
aix_restoreauthdb();
#endif
*ngroupsp = ngroups;
return rval;
}
#else /* HAVE_GETGRSET */
/*
* BSD-compatible getgrouplist(3) using getgrent(3)
*/
int
getgrouplist(const char *name, gid_t basegid, gid_t *groups, int *ngroupsp)
{
int i, ngroups = 1;
int grpsize = *ngroupsp;
int rval = -1;
struct group *grp;
/* We support BSD semantics where the first element is the base gid */
if (grpsize <= 0)
return -1;
groups[0] = basegid;
setgrent();
while ((grp = getgrent()) != NULL) {
if (grp->gr_gid == basegid)
continue;
for (i = 0; grp->gr_mem[i] != NULL; i++) {
if (strcmp(name, grp->gr_mem[i]) == 0)
break;
}
if (grp->gr_mem[i] == NULL)
continue; /* user not found */
/* Only add if it is not the same as an existing gid */
for (i = 0; i < ngroups; i++) {
if (grp->gr_gid == groups[i])
break;
}
if (i == ngroups) {
if (ngroups == grpsize)
goto done;
groups[ngroups++] = grp->gr_gid;
}
}
rval = 0;
done:
endgrent();
*ngroupsp = ngroups;
return rval;
}
#endif /* HAVE_GETGRSET */
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>