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-rw-r--r--source3/lib/fstring.c131
1 files changed, 131 insertions, 0 deletions
diff --git a/source3/lib/fstring.c b/source3/lib/fstring.c
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+++ b/source3/lib/fstring.c
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+/*
+ Unix SMB/CIFS implementation.
+
+ fixed string functions
+
+ Copyright (C) Igor Vergeichik <iverg@mail.ru> 2001
+ Copyright (C) Andrew Tridgell 2001
+ Copyright (C) Simo Sorce 2001
+ Copyright (C) Martin Pool 2003
+
+ 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"
+
+size_t push_ascii_fstring(void *dest, const char *src)
+{
+ return push_ascii(dest, src, sizeof(fstring), STR_TERMINATE);
+}
+
+/********************************************************************
+ Push an nstring - ensure null terminated. Written by
+ moriyama@miraclelinux.com (MORIYAMA Masayuki).
+********************************************************************/
+
+size_t push_ascii_nstring(void *dest, const char *src)
+{
+ size_t i, buffer_len, dest_len;
+ smb_ucs2_t *buffer;
+
+ conv_silent = True;
+ if (!push_ucs2_talloc(talloc_tos(), &buffer, src, &buffer_len)) {
+ smb_panic("failed to create UCS2 buffer");
+ }
+
+ /* We're using buffer_len below to count ucs2 characters, not bytes. */
+ buffer_len /= sizeof(smb_ucs2_t);
+
+ dest_len = 0;
+ for (i = 0; buffer[i] != 0 && (i < buffer_len); i++) {
+ unsigned char mb[10];
+ /* Convert one smb_ucs2_t character at a time. */
+ size_t mb_len = convert_string(CH_UTF16LE, CH_DOS, buffer+i, sizeof(smb_ucs2_t), mb, sizeof(mb));
+ if ((mb_len != (size_t)-1) && (dest_len + mb_len <= MAX_NETBIOSNAME_LEN - 1)) {
+ memcpy((char *)dest + dest_len, mb, mb_len);
+ dest_len += mb_len;
+ } else {
+ errno = E2BIG;
+ break;
+ }
+ }
+ ((char *)dest)[dest_len] = '\0';
+
+ conv_silent = False;
+ TALLOC_FREE(buffer);
+ return dest_len;
+}
+
+size_t pull_ascii_fstring(char *dest, const void *src)
+{
+ return pull_ascii(dest, src, sizeof(fstring), -1, STR_TERMINATE);
+}
+
+/* When pulling an nstring it can expand into a larger size (dos cp -> utf8). Cope with this. */
+
+size_t pull_ascii_nstring(char *dest, size_t dest_len, const void *src)
+{
+ return pull_ascii(dest, src, dest_len, sizeof(nstring)-1, STR_TERMINATE);
+}
+
+/**
+ Copy a string from a char* src to a UTF-8 destination.
+ Return the number of bytes occupied by the string in the destination
+ Flags can have:
+ STR_TERMINATE means include the null termination
+ STR_UPPER means uppercase in the destination
+ dest_len is the maximum length allowed in the destination. If dest_len
+ is -1 then no maxiumum is used.
+**/
+
+static size_t push_utf8(void *dest, const char *src, size_t dest_len, int flags)
+{
+ size_t src_len = 0;
+ size_t ret;
+ char *tmpbuf = NULL;
+
+ if (dest_len == (size_t)-1) {
+ /* No longer allow dest_len of -1. */
+ smb_panic("push_utf8 - invalid dest_len of -1");
+ }
+
+ if (flags & STR_UPPER) {
+ tmpbuf = strupper_talloc(talloc_tos(), src);
+ if (!tmpbuf) {
+ return (size_t)-1;
+ }
+ src = tmpbuf;
+ src_len = strlen(src);
+ }
+
+ src_len = strlen(src);
+ if (flags & STR_TERMINATE) {
+ src_len++;
+ }
+
+ ret = convert_string(CH_UNIX, CH_UTF8, src, src_len, dest, dest_len);
+ TALLOC_FREE(tmpbuf);
+ return ret;
+}
+
+size_t push_utf8_fstring(void *dest, const char *src)
+{
+ return push_utf8(dest, src, sizeof(fstring), STR_TERMINATE);
+}
+
+size_t pull_ucs2_fstring(char *dest, const void *src)
+{
+ return pull_ucs2(NULL, dest, src, sizeof(fstring), -1, STR_TERMINATE);
+}