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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);
}
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