blob: e3ac017a0ad339bea09b32e28a97a62b6817271f [file] [log] [blame]
/*-
* Copyright (c) 1987, 1992 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* Modified for Linux by Charles Hannum (mycroft@gnu.ai.mit.edu)
* and Brian Koehmstedt (bpk@gnu.ai.mit.edu)
*
* Wed Sep 14 22:26:00 1994: Patch from bjdouma <bjdouma@xs4all.nl> to handle
* last line that has no newline correctly.
* 3-Jun-1998: Patched by Nicolai Langfeldt to work better on Linux:
* Handle any-length-lines. Code copied from util-linux' setpwnam.c
* 1999-02-22 Arkadiusz Mi¶kiewicz <misiek@pld.ORG.PL>
* added Native Language Support
* 1999-09-19 Bruno Haible <haible@clisp.cons.org>
* modified to work correctly in multi-byte locales
*
*/
#include <stdarg.h>
#include <sys/types.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "nls.h"
#include "widechar.h"
void usage(void);
void warn(const char *, ...);
int
main(int argc, char *argv[])
{
register char *filename;
register wchar_t *t;
size_t buflen = 512;
wchar_t *p = malloc(buflen*sizeof(wchar_t));
size_t len;
FILE *fp;
int ch, rval;
setlocale(LC_ALL, "");
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
while ((ch = getopt(argc, argv, "")) != -1)
switch(ch) {
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
fp = stdin;
filename = "stdin";
rval = 0;
do {
if (*argv) {
if ((fp = fopen(*argv, "r")) == NULL) {
warn("%s: %s", *argv, strerror(errno));
rval = 1;
++argv;
continue;
}
filename = *argv++;
}
while (fgetws(p, buflen, fp)) {
len = wcslen(p);
/* This is my hack from setpwnam.c -janl */
while (p[len-1] != '\n' && !feof(fp)) {
/* Extend input buffer if it failed getting the whole line */
/* So now we double the buffer size */
buflen *= 2;
p = realloc(p, buflen*sizeof(wchar_t));
if (p == NULL) {
fprintf(stderr,_("Unable to allocate bufferspace\n"));
exit(1);
}
/* And fill the rest of the buffer */
if (fgetws(&p[len], buflen/2, fp) == NULL) break;
len = wcslen(p);
/* That was a lot of work for nothing. Gimme perl! */
}
t = p + len - 1 - (*(p+len-1)=='\r' || *(p+len-1)=='\n');
for ( ; t >= p; --t)
if (*t != 0)
putwchar(*t);
putwchar('\n');
}
fflush(fp);
if (ferror(fp)) {
warn("%s: %s", filename, strerror(errno));
rval = 1;
}
if (fclose(fp))
rval = 1;
} while(*argv);
exit(rval);
}
void
warn(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
(void)fprintf(stderr, "rev: ");
(void)vfprintf(stderr, fmt, ap);
va_end(ap);
(void)fprintf(stderr, "\n");
}
void
usage(void)
{
(void)fprintf(stderr, _("usage: rev [file ...]\n"));
exit(1);
}