2006-12-06 17:25:32 -06:00
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/*-
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* Copyright (c) 1987, 1992 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* Modified for Linux by Charles Hannum (mycroft@gnu.ai.mit.edu)
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* and Brian Koehmstedt (bpk@gnu.ai.mit.edu)
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*
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* Wed Sep 14 22:26:00 1994: Patch from bjdouma <bjdouma@xs4all.nl> to handle
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* last line that has no newline correctly.
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2006-12-06 17:25:35 -06:00
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* 3-Jun-1998: Patched by Nicolai Langfeldt to work better on Linux:
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* Handle any-length-lines. Code copied from util-linux' setpwnam.c
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2006-12-06 17:25:39 -06:00
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* 1999-02-22 Arkadiusz Mi<EFBFBD>kiewicz <misiek@misiek.eu.org>
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2006-12-06 17:25:41 -06:00
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* added Native Language Support
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* 1999-09-19 Bruno Haible <haible@clisp.cons.org>
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* modified to work correctly in multi-byte locales
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2006-12-06 17:25:39 -06:00
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*
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2006-12-06 17:25:32 -06:00
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*/
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2006-12-06 17:25:43 -06:00
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#include <stdarg.h>
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2006-12-06 17:25:32 -06:00
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#include <sys/types.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "nls.h"
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#include "widechar.h"
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2006-12-06 17:25:43 -06:00
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void usage(void);
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void warn(const char *, ...);
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int
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main(int argc, char *argv[])
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{
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register char *filename;
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register wchar_t *t;
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size_t buflen = 512;
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wchar_t *p = malloc(buflen*sizeof(wchar_t));
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size_t len;
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FILE *fp;
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int ch, rval;
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2006-12-06 17:25:39 -06:00
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setlocale(LC_ALL, "");
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bindtextdomain(PACKAGE, LOCALEDIR);
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textdomain(PACKAGE);
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2006-12-06 17:25:35 -06:00
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while ((ch = getopt(argc, argv, "")) != EOF)
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switch(ch) {
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case '?':
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default:
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usage();
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}
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argc -= optind;
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argv += optind;
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fp = stdin;
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filename = "stdin";
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rval = 0;
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do {
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if (*argv) {
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if ((fp = fopen(*argv, "r")) == NULL) {
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warn("%s: %s", *argv, strerror(errno));
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rval = 1;
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++argv;
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continue;
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}
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filename = *argv++;
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}
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while (fgetws(p, buflen, fp)) {
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len = wcslen(p);
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/* This is my hack from setpwnam.c -janl */
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while (p[len-1] != '\n' && !feof(fp)) {
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/* Extend input buffer if it failed getting the whole line */
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/* So now we double the buffer size */
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buflen *= 2;
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p = realloc(p, buflen*sizeof(wchar_t));
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if (p == NULL) {
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fprintf(stderr,_("Unable to allocate bufferspace\n"));
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exit(1);
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}
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/* And fill the rest of the buffer */
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if (fgetws(&p[len], buflen/2, fp) == NULL) break;
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len = wcslen(p);
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/* That was a lot of work for nothing. Gimme perl! */
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}
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t = p + len - 1 - (*(p+len-1)=='\r' || *(p+len-1)=='\n');
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for ( ; t >= p; --t)
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if (*t != 0)
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putwchar(*t);
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putwchar('\n');
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}
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fflush(fp);
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if (ferror(fp)) {
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warn("%s: %s", filename, strerror(errno));
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rval = 1;
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}
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if (fclose(fp))
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rval = 1;
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} while(*argv);
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exit(rval);
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}
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void
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warn(const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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(void)fprintf(stderr, "rev: ");
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(void)vfprintf(stderr, fmt, ap);
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va_end(ap);
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(void)fprintf(stderr, "\n");
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}
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void
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usage(void)
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{
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(void)fprintf(stderr, _("usage: rev [file ...]\n"));
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exit(1);
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}
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