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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 12:50:00 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 12:50:00 +0000 |
commit | 333f7ecfa3e040191c66b2b92f6c117ca2cbac1d (patch) | |
tree | 178a8f140927896970f47930dae9213161268f10 /lib/getulong.c | |
parent | Initial commit. (diff) | |
download | shadow-upstream.tar.xz shadow-upstream.zip |
Adding upstream version 1:4.8.1.upstream/1%4.8.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | lib/getulong.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/lib/getulong.c b/lib/getulong.c new file mode 100644 index 0000000..08d2c1a --- /dev/null +++ b/lib/getulong.c @@ -0,0 +1,62 @@ +/* + * Copyright (c) 2007 - 2009, Nicolas François + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the copyright holders or contributors may not be used to + * endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#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; +} + |