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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 2005
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 "replace.h"
#include "system/locale.h"
#include "lib/util/samba_util.h"
/**
Do a case-insensitive, whitespace-ignoring ASCII string compare.
**/
_PUBLIC_ int strwicmp(const char *psz1, const char *psz2)
{
/* if BOTH strings are NULL, return TRUE, if ONE is NULL return */
/* appropriate value. */
if (psz1 == psz2)
return (0);
else if (psz1 == NULL)
return (-1);
else if (psz2 == NULL)
return (1);
/* sync the strings on first non-whitespace */
while (1) {
while (isspace((int)*psz1))
psz1++;
while (isspace((int)*psz2))
psz2++;
/*
* This does not do a genuine multi-byte comparison,
* instead it just uses the fast-path for ASCII in
* these common routines
*/
if (toupper_m((unsigned char)*psz1) != toupper_m((unsigned char)*psz2)
|| *psz1 == '\0'
|| *psz2 == '\0')
break;
psz1++;
psz2++;
}
return (*psz1 - *psz2);
}
/**
String replace.
NOTE: oldc and newc must be 7 bit characters
**/
void string_replace( char *s, char oldc, char newc )
{
while (*s != '\0') {
size_t c_size;
next_codepoint(s, &c_size);
if (c_size == 1) {
if (*s == oldc) {
*s = newc;
}
}
s += c_size;
}
}
/**
Paranoid strcpy into a buffer of given length (includes terminating
zero. Strips out all but 'a-Z0-9' and the character in other_safe_chars
and replaces with '_'. Deliberately does *NOT* check for multibyte
characters. Treats src as an array of bytes, not as a multibyte
string. Any byte >0x7f is automatically converted to '_'.
other_safe_chars must also contain an ascii string (bytes<0x7f).
**/
char *alpha_strcpy(char *dest,
const char *src,
const char *other_safe_chars,
size_t maxlength)
{
size_t len, i;
if (!dest) {
smb_panic("ERROR: NULL dest in alpha_strcpy");
}
if (!src) {
*dest = 0;
return dest;
}
len = strlen(src);
if (len >= maxlength)
len = maxlength - 1;
if (!other_safe_chars)
other_safe_chars = "";
for(i = 0; i < len; i++) {
int val = (src[i] & 0xff);
if (val > 0x7f) {
dest[i] = '_';
continue;
}
if (isupper(val) || islower(val) ||
isdigit(val) || strchr(other_safe_chars, val))
dest[i] = src[i];
else
dest[i] = '_';
}
dest[i] = '\0';
return dest;
}
char *talloc_alpha_strcpy(TALLOC_CTX *mem_ctx,
const char *src,
const char *other_safe_chars)
{
char *dest = NULL;
size_t slen;
if (src == NULL) {
return NULL;
}
slen = strlen(src);
dest = talloc_zero_size(mem_ctx, slen + 1);
if (dest == NULL) {
return NULL;
}
alpha_strcpy(dest, src, other_safe_chars, slen + 1);
return dest;
}
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