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