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/*
Unix SMB/CIFS implementation.
Samba utility functions
Copyright (C) Andrew Tridgell 1992-2001
Copyright (C) Simo Sorce 2001-2002
Copyright (C) Martin Pool 2003
Copyright (C) James Peach 2006
Copyright (C) Jeremy Allison 1992-2007
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
/* this is used to prevent lots of mallocs of size 1 */
static const char null_string[] = "";
/**
Set a string value, allocing the space for the string
**/
static bool string_init(char **dest,const char *src)
{
size_t l;
if (!src)
src = "";
l = strlen(src);
if (l == 0) {
*dest = discard_const_p(char, null_string);
} else {
(*dest) = SMB_STRDUP(src);
if ((*dest) == NULL) {
DEBUG(0,("Out of memory in string_init\n"));
return false;
}
}
return(true);
}
/**
Free a string value.
**/
void string_free(char **s)
{
if (!s || !(*s))
return;
if (*s == null_string)
*s = NULL;
SAFE_FREE(*s);
}
/**
Set a string value, deallocating any existing space, and allocing the space
for the string
**/
bool string_set(char **dest,const char *src)
{
string_free(dest);
return(string_init(dest,src));
}
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