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c109a70531
Makes these interfaces much harder to misuse and easier to ensure error checking. Autobuild-User: Jeremy Allison <jra@samba.org> Autobuild-Date: Wed Mar 30 23:59:37 CEST 2011 on sn-devel-104
129 lines
2.6 KiB
C
129 lines
2.6 KiB
C
/*
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Unix SMB/CIFS implementation.
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display print functions
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Copyright (C) Andrew Tridgell 2001
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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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/*
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this module provides functions for printing internal strings in the "display charset"
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This charset may be quite different from the chosen unix charset
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Eventually these functions will need to take care of column count constraints
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The d_ prefix on print functions in Samba refers to the display character set
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conversion
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*/
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#include "includes.h"
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#include "intl/lang_tdb.h"
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int d_vfprintf(FILE *f, const char *format, va_list ap)
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{
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char *p = NULL, *p2 = NULL;
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int ret, maxlen, clen;
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size_t size = 0;
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const char *msgstr;
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va_list ap2;
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va_copy(ap2, ap);
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/* do any message translations */
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msgstr = lang_msg(format);
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if (!msgstr) {
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ret = -1;
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goto out;
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}
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ret = vasprintf(&p, msgstr, ap2);
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lang_msg_free(msgstr);
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if (ret <= 0) {
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ret = -1;
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goto out;
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}
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/* now we have the string in unix format, convert it to the display
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charset, but beware of it growing */
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maxlen = ret*2;
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again:
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p2 = (char *)SMB_MALLOC(maxlen);
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if (!p2) {
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ret = -1;
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goto out;
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}
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if (!convert_string(CH_UNIX, CH_DISPLAY, p, ret, p2, maxlen, &size)) {
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ret = -1;
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goto out;
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}
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clen = size;
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if (clen >= maxlen) {
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/* it didn't fit - try a larger buffer */
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maxlen *= 2;
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SAFE_FREE(p2);
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goto again;
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}
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/* good, its converted OK */
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ret = fwrite(p2, 1, clen, f);
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out:
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SAFE_FREE(p);
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SAFE_FREE(p2);
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va_end(ap2);
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return ret;
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}
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int d_fprintf(FILE *f, const char *format, ...)
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{
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int ret;
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va_list ap;
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va_start(ap, format);
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ret = d_vfprintf(f, format, ap);
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va_end(ap);
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return ret;
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}
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static FILE *outfile;
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int d_printf(const char *format, ...)
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{
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int ret;
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va_list ap;
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if (!outfile) outfile = stdout;
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va_start(ap, format);
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ret = d_vfprintf(outfile, format, ap);
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va_end(ap);
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return ret;
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}
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/* interactive programs need a way of tell d_*() to write to stderr instead
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of stdout */
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void display_set_stderr(void)
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{
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outfile = stderr;
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}
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