2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * @(#) Copyright (c) 1989, 1993 The Regents of the University of California. All rights reserved.
37 * @(#)cat.c 8.2 (Berkeley) 4/27/95
38 * $FreeBSD: src/bin/cat/cat.c,v 1.14.2.8 2002/06/29 05:09:26 tjr Exp $
39 * $DragonFly: src/bin/cat/cat.c,v 1.2 2003/06/17 04:22:49 dillon Exp $
42 #include <sys/param.h>
44 #ifndef NO_UDOM_SUPPORT
45 #include <sys/socket.h>
60 int bflag, eflag, nflag, sflag, tflag, vflag;
64 int main __P((int argc, char *argv[]));
66 static void scanfiles __P((char **argv, int cooked));
67 static void cook_cat __P((FILE *));
68 static void raw_cat __P((int));
70 #ifndef NO_UDOM_SUPPORT
71 static int udom_open __P((const char *path, int flags));
81 setlocale(LC_CTYPE, "");
83 while ((ch = getopt(argc, argv, "benstuv")) != -1)
86 bflag = nflag = 1; /* -b implies -n */
89 eflag = vflag = 1; /* -e implies -v */
98 tflag = vflag = 1; /* -t implies -v */
101 setbuf(stdout, NULL);
108 "usage: cat [-benstuv] [-] [file ...]\n");
113 if (bflag || eflag || nflag || sflag || tflag || vflag)
123 scanfiles(argv, cooked)
131 while ((path = argv[i]) != NULL || i == 0) {
134 if (path == NULL || strcmp(path, "-") == 0) {
139 fd = open(path, O_RDONLY);
140 #ifndef NO_UDOM_SUPPORT
141 if (fd < 0 && errno == EOPNOTSUPP)
142 fd = udom_open(path, O_RDONLY);
149 if (fd == STDIN_FILENO)
152 fp = fdopen(fd, "r");
158 if (fd != STDIN_FILENO)
171 register int ch, gobble, line, prev;
173 /* Reset EOF condition on stdin. */
174 if (fp == stdin && feof(stdin))
178 for (prev = '\n'; (ch = getc(fp)) != EOF; prev = ch) {
182 if (!gobble && putchar(ch) == EOF)
187 if (nflag && !bflag) {
188 fprintf(stdout, "%6d\t", ++line);
193 fprintf(stdout, "%6d\t", ++line);
201 if (putchar('$') == EOF)
203 } else if (ch == '\t') {
205 if (putchar('^') == EOF || putchar('I') == EOF)
210 if (!isascii(ch) && !isprint(ch)) {
211 if (putchar('M') == EOF || putchar('-') == EOF)
216 if (putchar('^') == EOF ||
217 putchar(ch == '\177' ? '?' :
223 if (putchar(ch) == EOF)
227 warn("%s", filename);
239 register int off, wfd;
242 static char *buf = NULL;
245 wfd = fileno(stdout);
247 if (fstat(wfd, &sbuf))
248 err(1, "%s", filename);
249 bsize = MAX(sbuf.st_blksize, 1024);
250 if ((buf = malloc(bsize)) == NULL)
253 while ((nr = read(rfd, buf, bsize)) > 0)
254 for (off = 0; nr; nr -= nw, off += nw)
255 if ((nw = write(wfd, buf + off, (size_t)nr)) < 0)
258 warn("%s", filename);
263 #ifndef NO_UDOM_SUPPORT
266 udom_open(path, flags)
270 struct sockaddr_un sou;
274 bzero(&sou, sizeof(sou));
277 * Construct the unix domain socket address and attempt to connect
279 fd = socket(AF_UNIX, SOCK_STREAM, 0);
281 sou.sun_family = AF_UNIX;
282 snprintf(sou.sun_path, sizeof(sou.sun_path), "%s", path);
283 len = strlen(sou.sun_path);
284 len = offsetof(struct sockaddr_un, sun_path[len+1]);
286 if (connect(fd, (void *)&sou, len) < 0) {
293 * handle the open flags by shutting down appropriate directions
296 switch(flags & O_ACCMODE) {
298 if (shutdown(fd, SHUT_WR) == -1)
302 if (shutdown(fd, SHUT_RD) == -1)