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/*
* Copyright (c) 2000-2001, 2003 Sendmail, Inc. and its suppliers.
* All rights reserved.
*
* By using this file, you agree to the terms and conditions set
* forth in the LICENSE file which can be found at the top level of
* the sendmail distribution.
*
*/
#include <sm/gen.h>
SM_RCSID("@(#)$Id: strdup.c,v 1.15 2003/10/10 17:56:57 ca Exp $")
#include <sm/heap.h>
#include <sm/string.h>
/*
** SM_STRNDUP_X -- Duplicate a string of a given length
**
** Allocates memory and copies source string (of given length) into it.
**
** Parameters:
** s -- string to copy.
** n -- length to copy.
**
** Returns:
** copy of string, raises exception if out of memory.
**
** Side Effects:
** allocate memory for new string.
*/
char *
sm_strndup_x(s, n)
const char *s;
size_t n;
{
char *d = sm_malloc_x(n + 1);
(void) memcpy(d, s, n);
d[n] = '\0';
return d;
}
/*
** SM_STRDUP -- Duplicate a string
**
** Allocates memory and copies source string into it.
**
** Parameters:
** s -- string to copy.
**
** Returns:
** copy of string, NULL if out of memory.
**
** Side Effects:
** allocate memory for new string.
*/
char *
sm_strdup(s)
char *s;
{
size_t l;
char *d;
l = strlen(s) + 1;
d = sm_malloc_tagged(l, "sm_strdup", 0, sm_heap_group());
if (d != NULL)
(void) sm_strlcpy(d, s, l);
return d;
}
#if DO_NOT_USE_STRCPY
/*
** SM_STRDUP_X -- Duplicate a string
**
** Allocates memory and copies source string into it.
**
** Parameters:
** s -- string to copy.
**
** Returns:
** copy of string, exception if out of memory.
**
** Side Effects:
** allocate memory for new string.
*/
char *
sm_strdup_x(s)
const char *s;
{
size_t l;
char *d;
l = strlen(s) + 1;
d = sm_malloc_tagged_x(l, "sm_strdup_x", 0, sm_heap_group());
(void) sm_strlcpy(d, s, l);
return d;
}
/*
** SM_PSTRDUP_X -- Duplicate a string (using "permanent" memory)
**
** Allocates memory and copies source string into it.
**
** Parameters:
** s -- string to copy.
**
** Returns:
** copy of string, exception if out of memory.
**
** Side Effects:
** allocate memory for new string.
*/
char *
sm_pstrdup_x(s)
const char *s;
{
size_t l;
char *d;
l = strlen(s) + 1;
d = sm_pmalloc_x(l);
(void) sm_strlcpy(d, s, l);
return d;
}
/*
** SM_STRDUP_X -- Duplicate a string
**
** Allocates memory and copies source string into it.
**
** Parameters:
** s -- string to copy.
** file -- name of source file
** line -- line in source file
** group -- heap group
**
** Returns:
** copy of string, exception if out of memory.
**
** Side Effects:
** allocate memory for new string.
*/
char *
sm_strdup_tagged_x(s, file, line, group)
const char *s;
char *file;
int line, group;
{
size_t l;
char *d;
l = strlen(s) + 1;
d = sm_malloc_tagged_x(l, file, line, group);
(void) sm_strlcpy(d, s, l);
return d;
}
#endif /* DO_NOT_USE_STRCPY */
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