#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>
#else
# ifdef HAVE_STRINGS_H
# include <strings.h>
# endif
#endif
#if defined(HAVE_MALLOC_H) && !defined(STDC_HEADERS)
# include <malloc.h>
#endif
#ifdef HAVE_ERR_H
# include <err.h>
#else
# include "emul/err.h"
#endif
#include "sudo.h"
#ifndef lint
static const char rcsid[] = "$Sudo: alloc.c,v 1.23 2004/06/01 16:23:32 millert Exp $";
#endif
#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)
errx(1, "internal error, tried to emalloc(0)");
if ((ptr = (VOID *) malloc(size)) == NULL)
errx(1, "unable to allocate memory");
return(ptr);
}
VOID *
emalloc2(nmemb, size)
size_t nmemb;
size_t size;
{
VOID *ptr;
if (nmemb == 0 || size == 0)
errx(1, "internal error, tried to emalloc2(0)");
if (nmemb > SIZE_MAX / size)
errx(1, "internal error, emalloc2() overflow");
size *= nmemb;
if ((ptr = (VOID *) malloc(size)) == NULL)
errx(1, "unable to allocate memory");
return(ptr);
}
VOID *
erealloc(ptr, size)
VOID *ptr;
size_t size;
{
if (size == 0)
errx(1, "internal error, tried to erealloc(0)");
ptr = ptr ? (VOID *) realloc(ptr, size) : (VOID *) malloc(size);
if (ptr == NULL)
errx(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)
errx(1, "internal error, tried to erealloc3(0)");
if (nmemb > SIZE_MAX / size)
errx(1, "internal error, erealloc3() overflow");
size *= nmemb;
ptr = ptr ? (VOID *) realloc(ptr, size) : (VOID *) malloc(size);
if (ptr == NULL)
errx(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(va_alist)
va_dcl
#endif
{
int len;
va_list ap;
#ifdef __STDC__
va_start(ap, fmt);
#else
char **ret;
const char *fmt;
va_start(ap);
ret = va_arg(ap, char **);
fmt = va_arg(ap, const char *);
#endif
len = vasprintf(ret, fmt, ap);
va_end(ap);
if (len == -1)
errx(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)
errx(1, "unable to allocate memory");
return(len);
}