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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 20:46:53 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 20:46:53 +0000 |
commit | 19da58be2d9359a9641381feb559be0b918ef710 (patch) | |
tree | 109724175f07436696f51b14b5abbd3f4d704d6d /lib/getlong.c | |
parent | Initial commit. (diff) | |
download | shadow-19da58be2d9359a9641381feb559be0b918ef710.tar.xz shadow-19da58be2d9359a9641381feb559be0b918ef710.zip |
Adding upstream version 1:4.13+dfsg1.upstream/1%4.13+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'lib/getlong.c')
-rw-r--r-- | lib/getlong.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/lib/getlong.c b/lib/getlong.c new file mode 100644 index 0000000..ec4aa54 --- /dev/null +++ b/lib/getlong.c @@ -0,0 +1,36 @@ +/* + * SPDX-FileCopyrightText: 2007 - 2009, Nicolas François + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <config.h> + +#ident "$Id$" + +#include <stdlib.h> +#include <errno.h> +#include "prototypes.h" + +/* + * getlong - extract a long integer provided by the numstr string in *result + * + * It supports decimal, hexadecimal or octal representations. + * + * Returns 0 on failure, 1 on success. + */ +int getlong (const char *numstr, /*@out@*/long int *result) +{ + long val; + char *endptr; + + errno = 0; + val = strtol (numstr, &endptr, 0); + if (('\0' == *numstr) || ('\0' != *endptr) || (ERANGE == errno)) { + return 0; + } + + *result = val; + return 1; +} + |