#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
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#if defined(HAVE_MALLOC_H) && !defined(STDC_HEADERS)
# include <malloc.h>
#endif
#ifdef HAVE_INTTYPES_H
# include <inttypes.h>
#endif
#include "sudo.h"
#ifndef SIZE_MAX
# ifdef SIZE_T_MAX
# define SIZE_MAX SIZE_T_MAX
# else
# define SIZE_MAX INT_MAX
# endif
#endif
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);
}
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);
}
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);
}
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);
}
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);
}
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);
}
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);
}
void
efree(ptr)
void *ptr;
{
if (ptr != NULL)
free(ptr);
}