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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 14:54:37 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 14:54:37 +0000 |
commit | 97c26c1924b076ef23ebe4381558e8aa025712b2 (patch) | |
tree | 109724175f07436696f51b14b5abbd3f4d704d6d /lib/getulong.c | |
parent | Initial commit. (diff) | |
download | shadow-97c26c1924b076ef23ebe4381558e8aa025712b2.tar.xz shadow-97c26c1924b076ef23ebe4381558e8aa025712b2.zip |
Adding upstream version 1:4.13+dfsg1.upstream/1%4.13+dfsg1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'lib/getulong.c')
-rw-r--r-- | lib/getulong.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/lib/getulong.c b/lib/getulong.c new file mode 100644 index 0000000..33250e3 --- /dev/null +++ b/lib/getulong.c @@ -0,0 +1,39 @@ +/* + * 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; +} + |