minix/lib/libc/time/scheck.c
Lionel Sambuc 84d9c625bf Synchronize on NetBSD-CVS (2013/12/1 12:00:00 UTC)
- Fix for possible unset uid/gid in toproto
 - Fix for default mtree style
 - Update libelf
 - Importing libexecinfo
 - Resynchronize GCC, mpc, gmp, mpfr
 - build.sh: Replace params with show-params.
     This has been done as the make target has been renamed in the same
     way, while a new target named params has been added. This new
     target generates a file containing all the parameters, instead of
     printing it on the console.
 - Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org)
     get getservbyport() out of the inner loop

Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091
2014-07-28 17:05:06 +02:00

81 lines
1.5 KiB
C

/* $NetBSD: scheck.c,v 1.11 2013/07/17 23:09:26 christos Exp $ */
/*
** This file is in the public domain, so clarified as of
** 2006-07-17 by Arthur David Olson.
*/
#if HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif
#include <sys/cdefs.h>
#ifndef lint
#if 0
static char elsieid[] = "@(#)scheck.c 8.19";
#else
__RCSID("$NetBSD: scheck.c,v 1.11 2013/07/17 23:09:26 christos Exp $");
#endif
#endif /* !defined lint */
/*LINTLIBRARY*/
#include "private.h"
const char *
scheck(const char *const string, const char *const format)
{
char * fbuf;
const char * fp;
char * tp;
int c;
const char * result;
char dummy;
result = "";
if (string == NULL || format == NULL)
return result;
fbuf = malloc(2 * strlen(format) + 4);
if (fbuf == NULL)
return result;
fp = format;
tp = fbuf;
/*
** Copy directives, suppressing each conversion that is not
** already suppressed. Scansets containing '%' are not
** supported; e.g., the conversion specification "%[%]" is not
** supported. Also, multibyte characters containing a
** non-leading '%' byte are not supported.
*/
while ((*tp++ = c = *fp++) != '\0') {
if (c != '%')
continue;
if (is_digit(*fp)) {
char const *f = fp;
char *t = tp;
do {
*t++ = c = *f++;
} while (is_digit(c));
if (c == '$') {
fp = f;
tp = t;
}
}
*tp++ = '*';
if (*fp == '*')
++fp;
if ((*tp++ = *fp++) == '\0')
break;
}
*(tp - 1) = '%';
*tp++ = 'c';
*tp = '\0';
if (sscanf(string, fbuf, &dummy) != 1)
result = format;
free(fbuf);
return result;
}