path: root/lib.c

/*
 * Copyright (C) 1996-2000,2007,2010 Michael R. Elkins <me@mutt.org>
 * Copyright (C) 1999-2004,2006-2007 Thomas Roessler <roessler@does-not-exist.org>
 *
 *     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.
 *
 *     You should have received a copy of the GNU General Public
 *     License along with this program; if not, write to the Free
 *     Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 *     Boston, MA  02110-1301, USA.
 */

/*
 * This file used to contain some more functions, namely those
 * which are now in muttlib.c.  They have been removed, so we have
 * some of our "standard" functions in external programs, too.
 */

#define _LIB_C 1

#if HAVE_CONFIG_H
# include "config.h"
#endif

#include <string.h>
#include <ctype.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/wait.h>
#include <errno.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <pwd.h>
#include <sys/types.h>
#include <dirent.h>

#ifdef HAVE_SYSEXITS_H
#include <sysexits.h>
#else /* Make sure EX_OK is defined <philiph@pobox.com> */
#define EX_OK 0
#endif

#include "lib.h"


static const struct sysexits
{
  int v;
  const char *str;
}
sysexits_h[] =
{
#ifdef EX_USAGE
  { 0xff & EX_USAGE, "Bad usage." },
#endif
#ifdef EX_DATAERR
  { 0xff & EX_DATAERR, "Data format error." },
#endif
#ifdef EX_NOINPUT
  { 0xff & EX_NOINPUT, "Cannot open input." },
#endif
#ifdef EX_NOUSER
  { 0xff & EX_NOUSER, "User unknown." },
#endif
#ifdef EX_NOHOST
  { 0xff & EX_NOHOST, "Host unknown." },
#endif
#ifdef EX_UNAVAILABLE
  { 0xff & EX_UNAVAILABLE, "Service unavailable." },
#endif
#ifdef EX_SOFTWARE
  { 0xff & EX_SOFTWARE, "Internal error." },
#endif
#ifdef EX_OSERR
  { 0xff & EX_OSERR, "Operating system error." },
#endif
#ifdef EX_OSFILE
  { 0xff & EX_OSFILE, "System file missing." },
#endif
#ifdef EX_CANTCREAT
  { 0xff & EX_CANTCREAT, "Can't create output." },
#endif
#ifdef EX_IOERR
  { 0xff & EX_IOERR, "I/O error." },
#endif
#ifdef EX_TEMPFAIL
  { 0xff & EX_TEMPFAIL, "Deferred." },
#endif
#ifdef EX_PROTOCOL
  { 0xff & EX_PROTOCOL, "Remote protocol error." },
#endif
#ifdef EX_NOPERM
  { 0xff & EX_NOPERM, "Insufficient permission." },
#endif
#ifdef EX_CONFIG
  { 0xff & EX_NOPERM, "Local configuration error." },
#endif
  { S_ERR, "Exec error." },
  { -1, NULL}
};

void mutt_nocurses_error (const char *fmt, ...)
{
  va_list ap;

  va_start (ap, fmt);
  vfprintf (stderr, fmt, ap);
  va_end (ap);
  fputc ('\n', stderr);
}

void *safe_calloc (size_t nmemb, size_t size)
{
  void *p;

  if (!nmemb || !size)
    return NULL;

  if (((size_t) -1) / nmemb <= size)
  {
    mutt_error _("Integer overflow -- can't allocate memory!");
    sleep (1);
    mutt_exit (1);
  }

  if (!(p = calloc (nmemb, size)))
  {
    mutt_error _("