wifidog-1.1.1/src/safe.c

/********************************************************************\
 * This program is free software; you can redistribute it and/or    *
 * modify it under the terms of the GNU General Public License as   *
 * published by the Free Software Foundation; either version 2 of   *
 * the License, or (at your option) any later version.              *
 *                                                                  *
 * This program is distributed in the hope that it will be useful,  *
 * but WITHOUT ANY WARRANTY; without even the implied warranty of   *
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the    *
 * GNU General Public License for more details.                     *
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 * along with this program; if not, contact:                        *
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/*
 * $Header: /cvsroot/wifidog/wifidog/src/safe.c,v 1.1 2005/02/20 21:29:15 minaguib Exp $
 */
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>

#include "safe.h"
#include "debug.h"
#include <syslog.h>

void * safe_malloc (size_t size) {
        void * retval = NULL;
        retval = malloc(size);
        if (!retval) {
                debug(LOG_CRIT, "Failed to malloc %d bytes of memory: %s.  Bailing out", size, strerror(errno));
                exit(1);
        }
        return (retval);
}

char * safe_strdup(const char *s) {
        char * retval = NULL;
        if (!s) {
                debug(LOG_CRIT, "safe_strdup called with NULL which would have crashed strdup. Bailing out");
                exit(1);
        }
        retval = strdup(s);
        if (!retval) {
                debug(LOG_CRIT, "Failed to duplicate a string: %s.  Bailing out", strerror(errno));
                exit(1);
        }
        return (retval);
}

int safe_asprintf(char **strp, const char *fmt, ...) {
        va_list ap;
        int retval;

        va_start(ap, fmt);
        retval = safe_vasprintf(strp, fmt, ap);
        va_end(ap);

        return (retval);
}

int safe_vasprintf(char **strp, const char *fmt, va_list ap) {
        int retval;

        retval = vasprintf(strp, fmt, ap);

        if (retval == -1) {
                debug(LOG_CRIT, "Failed to vasprintf: %s.  Bailing out", strerror(errno));
                exit (1);
        }
        return (retval);
}

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