shadow/libmisc/getgr_nam_gid.c
Serge Hallyn f93cf255d4 Update licensing info
Closes #238

Update all files to list SPDX license shortname.  Most files are
BSD 3 clause license.

The exceptions are:

serge@sl ~/src/shadow$ git grep SPDX-License | grep -v BSD-3-Clause
contrib/atudel:# SPDX-License-Identifier: BSD-4-Clause
lib/tcbfuncs.c: * SPDX-License-Identifier: 0BSD
libmisc/salt.c: * SPDX-License-Identifier: Unlicense
src/login_nopam.c: * SPDX-License-Identifier: Unlicense
src/nologin.c: * SPDX-License-Identifier: BSD-2-Clause
src/vipw.c: * SPDX-License-Identifier: GPL-2.0-or-later

Signed-off-by: Serge Hallyn <serge@hallyn.com>
2021-12-23 19:36:50 -06:00

44 lines
1.0 KiB
C

/*
* SPDX-FileCopyrightText: 1991 - 1994, Julianne Frances Haugh
* SPDX-FileCopyrightText: 1996 - 2000, Marek Michałkiewicz
* SPDX-FileCopyrightText: 2000 - 2006, Tomasz Kłoczko
* SPDX-FileCopyrightText: 2007 - 2009, Nicolas François
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <config.h>
#ident "$Id$"
#include <stdlib.h>
#include <errno.h>
#include <grp.h>
#include "prototypes.h"
/*
* getgr_nam_gid - Return a pointer to the group specified by a string.
* The string may be a valid GID or a valid groupname.
* If the group does not exist on the system, NULL is returned.
*/
extern /*@only@*//*@null@*/struct group *getgr_nam_gid (/*@null@*/const char *grname)
{
long long int gid;
char *endptr;
if (NULL == grname) {
return NULL;
}
errno = 0;
gid = strtoll (grname, &endptr, 10);
if ( ('\0' != *grname)
&& ('\0' == *endptr)
&& (ERANGE != errno)
&& (/*@+longintegral@*/gid == (gid_t)gid)/*@=longintegral@*/) {
return xgetgrgid ((gid_t) gid);
}
return xgetgrnam (grname);
}