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https://github.com/samba-team/samba.git
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e2d30fd5b7
Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Ralph Boehme <slow@samba.org>
155 lines
3.4 KiB
C
155 lines
3.4 KiB
C
/*
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Unix SMB/CIFS implementation.
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Samba utility functions
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Copyright (C) Andrew Tridgell 1992-2001
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Copyright (C) Simo Sorce 2001-2002
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Copyright (C) Martin Pool 2003
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Copyright (C) James Peach 2005
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "replace.h"
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#include "system/locale.h"
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#include "lib/util/samba_util.h"
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/**
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Do a case-insensitive, whitespace-ignoring ASCII string compare.
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**/
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_PUBLIC_ int strwicmp(const char *psz1, const char *psz2)
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{
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/* if BOTH strings are NULL, return TRUE, if ONE is NULL return */
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/* appropriate value. */
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if (psz1 == psz2)
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return (0);
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else if (psz1 == NULL)
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return (-1);
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else if (psz2 == NULL)
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return (1);
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/* sync the strings on first non-whitespace */
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while (1) {
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while (isspace((int)*psz1))
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psz1++;
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while (isspace((int)*psz2))
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psz2++;
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/*
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* This does not do a genuine multi-byte comparison,
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* instead it just uses the fast-path for ASCII in
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* these common routines
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*/
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if (toupper_m((unsigned char)*psz1) != toupper_m((unsigned char)*psz2)
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|| *psz1 == '\0'
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|| *psz2 == '\0')
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break;
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psz1++;
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psz2++;
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}
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return (*psz1 - *psz2);
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}
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/**
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String replace.
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NOTE: oldc and newc must be 7 bit characters
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**/
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void string_replace( char *s, char oldc, char newc )
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{
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while (*s != '\0') {
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size_t c_size;
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next_codepoint(s, &c_size);
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if (c_size == 1) {
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if (*s == oldc) {
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*s = newc;
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}
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}
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s += c_size;
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}
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}
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/**
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Paranoid strcpy into a buffer of given length (includes terminating
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zero. Strips out all but 'a-Z0-9' and the character in other_safe_chars
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and replaces with '_'. Deliberately does *NOT* check for multibyte
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characters. Treats src as an array of bytes, not as a multibyte
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string. Any byte >0x7f is automatically converted to '_'.
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other_safe_chars must also contain an ascii string (bytes<0x7f).
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**/
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char *alpha_strcpy(char *dest,
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const char *src,
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const char *other_safe_chars,
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size_t maxlength)
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{
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size_t len, i;
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if (!dest) {
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smb_panic("ERROR: NULL dest in alpha_strcpy");
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}
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if (!src) {
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*dest = 0;
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return dest;
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}
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len = strlen(src);
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if (len >= maxlength)
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len = maxlength - 1;
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if (!other_safe_chars)
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other_safe_chars = "";
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for(i = 0; i < len; i++) {
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int val = (src[i] & 0xff);
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if (val > 0x7f) {
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dest[i] = '_';
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continue;
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}
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if (isupper(val) || islower(val) ||
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isdigit(val) || strchr(other_safe_chars, val))
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dest[i] = src[i];
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else
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dest[i] = '_';
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}
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dest[i] = '\0';
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return dest;
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}
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char *talloc_alpha_strcpy(TALLOC_CTX *mem_ctx,
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const char *src,
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const char *other_safe_chars)
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{
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char *dest = NULL;
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size_t slen;
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if (src == NULL) {
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return NULL;
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}
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slen = strlen(src);
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dest = talloc_zero_size(mem_ctx, slen + 1);
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if (dest == NULL) {
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return NULL;
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}
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alpha_strcpy(dest, src, other_safe_chars, slen + 1);
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return dest;
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}
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