shadow/lib/getulong.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

40 lines
759 B
C

/*
* SPDX-FileCopyrightText: 2007 - 2009, Nicolas François
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <config.h>
#ident "$Id: getlong.c 2763 2009-04-23 09:57:03Z nekral-guest $"
#include <stdlib.h>
#include <errno.h>
#include "prototypes.h"
/*
* getulong - extract an unsigned long integer provided by the numstr string in *result
*
* It supports decimal, hexadecimal or octal representations.
*
* Returns 0 on failure, 1 on success.
*/
int getulong (const char *numstr, /*@out@*/unsigned long int *result)
{
unsigned long int val;
char *endptr;
errno = 0;
val = strtoul (numstr, &endptr, 0);
if ( ('\0' == *numstr)
|| ('\0' != *endptr)
|| (ERANGE == errno)
) {
return 0;
}
*result = val;
return 1;
}