+++ /dev/null
-/*
- * Copyright (c) 1999-2005, 2007, 2010
- * Todd C. Miller <Todd.Miller@courtesan.com>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * Sponsored in part by the Defense Advanced Research Projects
- * Agency (DARPA) and Air Force Research Laboratory, Air Force
- * Materiel Command, USAF, under agreement number F39502-99-1-0512.
- */
-
-#include <config.h>
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <stdio.h>
-#ifdef STDC_HEADERS
-# include <stdlib.h>
-# include <stddef.h>
-#else
-# ifdef HAVE_STDLIB_H
-# include <stdlib.h>
-# endif
-#endif /* STDC_HEADERS */
-#ifdef HAVE_STRING_H
-# include <string.h>
-#endif /* HAVE_STRING_H */
-#ifdef HAVE_STRINGS_H
-# include <strings.h>
-#endif /* HAVE_STRING_H */
-#if defined(HAVE_MALLOC_H) && !defined(STDC_HEADERS)
-# include <malloc.h>
-#endif /* HAVE_MALLOC_H && !STDC_HEADERS */
-#ifdef HAVE_INTTYPES_H
-# include <inttypes.h>
-#endif
-
-#include "sudo.h"
-
-/*
- * If there is no SIZE_MAX or SIZE_T_MAX we have to assume that size_t
- * could be signed (as it is on SunOS 4.x). This just means that
- * emalloc2() and erealloc3() cannot allocate huge amounts on such a
- * platform but that is OK since sudo doesn't need to do so anyway.
- */
-#ifndef SIZE_MAX
-# ifdef SIZE_T_MAX
-# define SIZE_MAX SIZE_T_MAX
-# else
-# define SIZE_MAX INT_MAX
-# endif /* SIZE_T_MAX */
-#endif /* SIZE_MAX */
-
-/*
- * emalloc() calls the system malloc(3) and exits with an error if
- * malloc(3) fails.
- */
-void *
-emalloc(size)
- size_t size;
-{
- void *ptr;
-
- if (size == 0)
- errorx(1, "internal error, tried to emalloc(0)");
-
- if ((ptr = malloc(size)) == NULL)
- errorx(1, "unable to allocate memory");
- return(ptr);
-}
-
-/*
- * emalloc2() allocates nmemb * size bytes and exits with an error
- * if overflow would occur or if the system malloc(3) fails.
- */
-void *
-emalloc2(nmemb, size)
- size_t nmemb;
- size_t size;
-{
- void *ptr;
-
- if (nmemb == 0 || size == 0)
- errorx(1, "internal error, tried to emalloc2(0)");
- if (nmemb > SIZE_MAX / size)
- errorx(1, "internal error, emalloc2() overflow");
-
- size *= nmemb;
- if ((ptr = malloc(size)) == NULL)
- errorx(1, "unable to allocate memory");
- return(ptr);
-}
-
-/*
- * erealloc() calls the system realloc(3) and exits with an error if
- * realloc(3) fails. You can call erealloc() with a NULL pointer even
- * if the system realloc(3) does not support this.
- */
-void *
-erealloc(ptr, size)
- void *ptr;
- size_t size;
-{
-
- if (size == 0)
- errorx(1, "internal error, tried to erealloc(0)");
-
- ptr = ptr ? realloc(ptr, size) : malloc(size);
- if (ptr == NULL)
- errorx(1, "unable to allocate memory");
- return(ptr);
-}
-
-/*
- * erealloc3() realloc(3)s nmemb * size bytes and exits with an error
- * if overflow would occur or if the system malloc(3)/realloc(3) fails.
- * You can call erealloc() with a NULL pointer even if the system realloc(3)
- * does not support this.
- */
-void *
-erealloc3(ptr, nmemb, size)
- void *ptr;
- size_t nmemb;
- size_t size;
-{
-
- if (nmemb == 0 || size == 0)
- errorx(1, "internal error, tried to erealloc3(0)");
- if (nmemb > SIZE_MAX / size)
- errorx(1, "internal error, erealloc3() overflow");
-
- size *= nmemb;
- ptr = ptr ? realloc(ptr, size) : malloc(size);
- if (ptr == NULL)
- errorx(1, "unable to allocate memory");
- return(ptr);
-}
-
-/*
- * estrdup() is like strdup(3) except that it exits with an error if
- * malloc(3) fails. NOTE: unlike strdup(3), estrdup(NULL) is legal.
- */
-char *
-estrdup(src)
- const char *src;
-{
- char *dst = NULL;
- size_t size;
-
- if (src != NULL) {
- size = strlen(src) + 1;
- dst = (char *) emalloc(size);
- (void) memcpy(dst, src, size);
- }
- return(dst);
-}
-
-/*
- * easprintf() calls vasprintf() and exits with an error if vasprintf()
- * returns -1 (out of memory).
- */
-int
-#ifdef __STDC__
-easprintf(char **ret, const char *fmt, ...)
-#else
-easprintf(ret, fmt, va_alist)
- char **ret;
- const char *fmt;
- va_dcl
-#endif
-{
- int len;
- va_list ap;
-#ifdef __STDC__
- va_start(ap, fmt);
-#else
- va_start(ap);
-#endif
- len = vasprintf(ret, fmt, ap);
- va_end(ap);
-
- if (len == -1)
- errorx(1, "unable to allocate memory");
- return(len);
-}
-
-/*
- * evasprintf() calls vasprintf() and exits with an error if vasprintf()
- * returns -1 (out of memory).
- */
-int
-evasprintf(ret, format, args)
- char **ret;
- const char *format;
- va_list args;
-{
- int len;
-
- if ((len = vasprintf(ret, format, args)) == -1)
- errorx(1, "unable to allocate memory");
- return(len);
-}
-
-/*
- * Wrapper for free(3) so we can depend on C89 semantics.
- */
-void
-efree(ptr)
- void *ptr;
-{
- if (ptr != NULL)
- free(ptr);
-}
projects / debian / sudo / blobdiff