107 lines
3.3 KiB
C
107 lines
3.3 KiB
C
/*
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* The IKE Scanner (ike-scan) is Copyright (C) 2003-2007 Roy Hills,
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* NTA Monitor Ltd.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* In addition, as a special exception, the copyright holders give
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* permission to link the code of portions of this program with the
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* OpenSSL library, and distribute linked combinations including the two.
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*
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* You must obey the GNU General Public License in all respects
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* for all of the code used other than OpenSSL. If you modify
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* file(s) with this exception, you may extend this exception to your
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* version of the file(s), but you are not obligated to do so. If you
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* do not wish to do so, delete this exception statement from your
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* version.
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*
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* If this license is unacceptable to you, I may be willing to negotiate
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* alternative licenses (contact ike-scan@nta-monitor.com).
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*
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* You are encouraged to send comments, improvements or suggestions to
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* me at ike-scan@nta-monitor.com.
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*
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* $Id: wrappers.c 9884 2007-01-14 19:05:39Z rsh $
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*
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* Author: Roy Hills
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* Date: 8 November 2003
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*
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* This file contains wrapper functions for system and library calls that
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* are not expected to fail. If they do fail, then it calls err_sys to
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* print a diagnostic and terminate the program. This removed the tedious
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* "if ((function()) == NULL) err_sys("function");" logic thus making the
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* code easier to read.
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*
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* The wrapper functions have the same name as the system or library function
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* but with an initial capital letter. E.g. Gethostbyname(). This convention
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* if from Richard Steven's UNIX Network Programming book.
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*
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*/
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#include "ike-scan.h"
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static char rcsid[] = "$Id: wrappers.c 9884 2007-01-14 19:05:39Z rsh $"; /* RCS ID for ident(1) */
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/*
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* We omit the timezone arg from this wrapper since it's obsolete and we never
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* use it.
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*/
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int Gettimeofday(struct timeval *tv) {
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int result;
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result = gettimeofday(tv, NULL);
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if (result != 0)
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err_sys("gettimeofday");
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return result;
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}
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void *Malloc(size_t size) {
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void *result;
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result = malloc(size);
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if (result == NULL)
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err_sys("malloc");
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return result;
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}
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void *Realloc(void *ptr, size_t size) {
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void *result;
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result=realloc(ptr, size);
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if (result == NULL)
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err_sys("realloc");
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return result;
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}
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unsigned long int Strtoul(const char *nptr, int base) {
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char *endptr;
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unsigned long int result;
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result=strtoul(nptr, &endptr, base);
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if (endptr == nptr) /* No digits converted */
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err_msg("ERROR: \"%s\" is not a valid numeric value", nptr);
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return result;
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}
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void wrappers_use_rcsid(void) {
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fprintf(stderr, "%s\n", rcsid); /* Use rcsid to stop compiler optimising away */
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}
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