14b88c807SRodney W. Grimes /* 24b88c807SRodney W. Grimes * Copyright (c) 1989, 1993 34b88c807SRodney W. Grimes * The Regents of the University of California. All rights reserved. 44b88c807SRodney W. Grimes * 54b88c807SRodney W. Grimes * This code is derived from software contributed to Berkeley by 64b88c807SRodney W. Grimes * Kevin Fall. 74b88c807SRodney W. Grimes * 84b88c807SRodney W. Grimes * Redistribution and use in source and binary forms, with or without 94b88c807SRodney W. Grimes * modification, are permitted provided that the following conditions 104b88c807SRodney W. Grimes * are met: 114b88c807SRodney W. Grimes * 1. Redistributions of source code must retain the above copyright 124b88c807SRodney W. Grimes * notice, this list of conditions and the following disclaimer. 134b88c807SRodney W. Grimes * 2. Redistributions in binary form must reproduce the above copyright 144b88c807SRodney W. Grimes * notice, this list of conditions and the following disclaimer in the 154b88c807SRodney W. Grimes * documentation and/or other materials provided with the distribution. 164b88c807SRodney W. Grimes * 3. All advertising materials mentioning features or use of this software 174b88c807SRodney W. Grimes * must display the following acknowledgement: 184b88c807SRodney W. Grimes * This product includes software developed by the University of 194b88c807SRodney W. Grimes * California, Berkeley and its contributors. 204b88c807SRodney W. Grimes * 4. Neither the name of the University nor the names of its contributors 214b88c807SRodney W. Grimes * may be used to endorse or promote products derived from this software 224b88c807SRodney W. Grimes * without specific prior written permission. 234b88c807SRodney W. Grimes * 244b88c807SRodney W. Grimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 254b88c807SRodney W. Grimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 264b88c807SRodney W. Grimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 274b88c807SRodney W. Grimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 284b88c807SRodney W. Grimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 294b88c807SRodney W. Grimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 304b88c807SRodney W. Grimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 314b88c807SRodney W. Grimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 324b88c807SRodney W. Grimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 334b88c807SRodney W. Grimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 344b88c807SRodney W. Grimes * SUCH DAMAGE. 354b88c807SRodney W. Grimes */ 364b88c807SRodney W. Grimes 374b88c807SRodney W. Grimes #ifndef lint 38890acb95SSteve Price static char const copyright[] = 394b88c807SRodney W. Grimes "@(#) Copyright (c) 1989, 1993\n\ 404b88c807SRodney W. Grimes The Regents of the University of California. All rights reserved.\n"; 414b88c807SRodney W. Grimes #endif /* not lint */ 424b88c807SRodney W. Grimes 434b88c807SRodney W. Grimes #ifndef lint 444c95995fSPhilippe Charnier #if 0 4512f93eb9SPhilippe Charnier static char sccsid[] = "@(#)cat.c 8.2 (Berkeley) 4/27/95"; 464c95995fSPhilippe Charnier #endif 474c95995fSPhilippe Charnier static const char rcsid[] = 482a456239SPeter Wemm "$FreeBSD$"; 494b88c807SRodney W. Grimes #endif /* not lint */ 504b88c807SRodney W. Grimes 514b88c807SRodney W. Grimes #include <sys/param.h> 524b88c807SRodney W. Grimes #include <sys/stat.h> 534b88c807SRodney W. Grimes 544b88c807SRodney W. Grimes #include <ctype.h> 554b88c807SRodney W. Grimes #include <err.h> 564b88c807SRodney W. Grimes #include <fcntl.h> 573043192bSAndrey A. Chernov #include <locale.h> 584b88c807SRodney W. Grimes #include <stdio.h> 594b88c807SRodney W. Grimes #include <stdlib.h> 60cafefe8cSDima Dorfman #include <string.h> 614b88c807SRodney W. Grimes #include <unistd.h> 624b88c807SRodney W. Grimes 634b88c807SRodney W. Grimes int bflag, eflag, nflag, sflag, tflag, vflag; 644b88c807SRodney W. Grimes int rval; 65a5da0999SWarner Losh const char *filename; 664b88c807SRodney W. Grimes 674b88c807SRodney W. Grimes void cook_args __P((char *argv[])); 684b88c807SRodney W. Grimes void cook_buf __P((FILE *)); 69d1762d1fSWarner Losh int main __P((int argc, char *argv[])); 704b88c807SRodney W. Grimes void raw_args __P((char *argv[])); 714b88c807SRodney W. Grimes void raw_cat __P((int)); 724b88c807SRodney W. Grimes 734b88c807SRodney W. Grimes int 74d1762d1fSWarner Losh main(argc, argv) 75d1762d1fSWarner Losh int argc; 76d1762d1fSWarner Losh char *argv[]; 774b88c807SRodney W. Grimes { 784b88c807SRodney W. Grimes int ch; 794b88c807SRodney W. Grimes 803043192bSAndrey A. Chernov setlocale(LC_CTYPE, ""); 813043192bSAndrey A. Chernov 8293ef08afSWarner Losh while ((ch = getopt(argc, argv, "benstuv")) != -1) 834b88c807SRodney W. Grimes switch (ch) { 844b88c807SRodney W. Grimes case 'b': 854b88c807SRodney W. Grimes bflag = nflag = 1; /* -b implies -n */ 864b88c807SRodney W. Grimes break; 874b88c807SRodney W. Grimes case 'e': 884b88c807SRodney W. Grimes eflag = vflag = 1; /* -e implies -v */ 894b88c807SRodney W. Grimes break; 904b88c807SRodney W. Grimes case 'n': 914b88c807SRodney W. Grimes nflag = 1; 924b88c807SRodney W. Grimes break; 934b88c807SRodney W. Grimes case 's': 944b88c807SRodney W. Grimes sflag = 1; 954b88c807SRodney W. Grimes break; 964b88c807SRodney W. Grimes case 't': 974b88c807SRodney W. Grimes tflag = vflag = 1; /* -t implies -v */ 984b88c807SRodney W. Grimes break; 994b88c807SRodney W. Grimes case 'u': 1002192b407SJeroen Ruigrok van der Werven setbuf(stdout, NULL); 1014b88c807SRodney W. Grimes break; 1024b88c807SRodney W. Grimes case 'v': 1034b88c807SRodney W. Grimes vflag = 1; 1044b88c807SRodney W. Grimes break; 1058d72a3d7SWarner Losh default: 1064b88c807SRodney W. Grimes (void)fprintf(stderr, 1074b88c807SRodney W. Grimes "usage: cat [-benstuv] [-] [file ...]\n"); 1084b88c807SRodney W. Grimes exit(1); 1094b88c807SRodney W. Grimes } 1104b88c807SRodney W. Grimes argv += optind; 1114b88c807SRodney W. Grimes 1124b88c807SRodney W. Grimes if (bflag || eflag || nflag || sflag || tflag || vflag) 1134b88c807SRodney W. Grimes cook_args(argv); 1144b88c807SRodney W. Grimes else 1154b88c807SRodney W. Grimes raw_args(argv); 1164b88c807SRodney W. Grimes if (fclose(stdout)) 1174b88c807SRodney W. Grimes err(1, "stdout"); 1184b88c807SRodney W. Grimes exit(rval); 1194b88c807SRodney W. Grimes } 1204b88c807SRodney W. Grimes 1214b88c807SRodney W. Grimes void 1224b88c807SRodney W. Grimes cook_args(argv) 1234b88c807SRodney W. Grimes char **argv; 1244b88c807SRodney W. Grimes { 1254b88c807SRodney W. Grimes register FILE *fp; 1264b88c807SRodney W. Grimes 1274b88c807SRodney W. Grimes fp = stdin; 1284b88c807SRodney W. Grimes filename = "stdin"; 1294b88c807SRodney W. Grimes do { 1304b88c807SRodney W. Grimes if (*argv) { 1314b88c807SRodney W. Grimes if (!strcmp(*argv, "-")) 1324b88c807SRodney W. Grimes fp = stdin; 1334b88c807SRodney W. Grimes else if ((fp = fopen(*argv, "r")) == NULL) { 1344b88c807SRodney W. Grimes warn("%s", *argv); 135001aff9fSBruce Evans rval = 1; 1364b88c807SRodney W. Grimes ++argv; 1374b88c807SRodney W. Grimes continue; 1384b88c807SRodney W. Grimes } 1394b88c807SRodney W. Grimes filename = *argv++; 1404b88c807SRodney W. Grimes } 1414b88c807SRodney W. Grimes cook_buf(fp); 1424b88c807SRodney W. Grimes if (fp != stdin) 1434b88c807SRodney W. Grimes (void)fclose(fp); 1444b88c807SRodney W. Grimes } while (*argv); 1454b88c807SRodney W. Grimes } 1464b88c807SRodney W. Grimes 1474b88c807SRodney W. Grimes void 1484b88c807SRodney W. Grimes cook_buf(fp) 1494b88c807SRodney W. Grimes register FILE *fp; 1504b88c807SRodney W. Grimes { 1514b88c807SRodney W. Grimes register int ch, gobble, line, prev; 1524b88c807SRodney W. Grimes 1534b88c807SRodney W. Grimes line = gobble = 0; 1544b88c807SRodney W. Grimes for (prev = '\n'; (ch = getc(fp)) != EOF; prev = ch) { 1554b88c807SRodney W. Grimes if (prev == '\n') { 1564b88c807SRodney W. Grimes if (ch == '\n') { 1574b88c807SRodney W. Grimes if (sflag) { 1584b88c807SRodney W. Grimes if (!gobble && putchar(ch) == EOF) 1594b88c807SRodney W. Grimes break; 1604b88c807SRodney W. Grimes gobble = 1; 1614b88c807SRodney W. Grimes continue; 1624b88c807SRodney W. Grimes } 1634b88c807SRodney W. Grimes if (nflag && !bflag) { 1644b88c807SRodney W. Grimes (void)fprintf(stdout, "%6d\t", ++line); 1654b88c807SRodney W. Grimes if (ferror(stdout)) 1664b88c807SRodney W. Grimes break; 1674b88c807SRodney W. Grimes } 1684b88c807SRodney W. Grimes } else if (nflag) { 1694b88c807SRodney W. Grimes (void)fprintf(stdout, "%6d\t", ++line); 1704b88c807SRodney W. Grimes if (ferror(stdout)) 1714b88c807SRodney W. Grimes break; 1724b88c807SRodney W. Grimes } 1734b88c807SRodney W. Grimes } 1744b88c807SRodney W. Grimes gobble = 0; 1754b88c807SRodney W. Grimes if (ch == '\n') { 1764b88c807SRodney W. Grimes if (eflag) 1774b88c807SRodney W. Grimes if (putchar('$') == EOF) 1784b88c807SRodney W. Grimes break; 1794b88c807SRodney W. Grimes } else if (ch == '\t') { 1804b88c807SRodney W. Grimes if (tflag) { 1814b88c807SRodney W. Grimes if (putchar('^') == EOF || putchar('I') == EOF) 1824b88c807SRodney W. Grimes break; 1834b88c807SRodney W. Grimes continue; 1844b88c807SRodney W. Grimes } 1854b88c807SRodney W. Grimes } else if (vflag) { 1863043192bSAndrey A. Chernov if (!isascii(ch) && !isprint(ch)) { 1874b88c807SRodney W. Grimes if (putchar('M') == EOF || putchar('-') == EOF) 1884b88c807SRodney W. Grimes break; 1894b88c807SRodney W. Grimes ch = toascii(ch); 1904b88c807SRodney W. Grimes } 1914b88c807SRodney W. Grimes if (iscntrl(ch)) { 1924b88c807SRodney W. Grimes if (putchar('^') == EOF || 1934b88c807SRodney W. Grimes putchar(ch == '\177' ? '?' : 1944b88c807SRodney W. Grimes ch | 0100) == EOF) 1954b88c807SRodney W. Grimes break; 1964b88c807SRodney W. Grimes continue; 1974b88c807SRodney W. Grimes } 1984b88c807SRodney W. Grimes } 1994b88c807SRodney W. Grimes if (putchar(ch) == EOF) 2004b88c807SRodney W. Grimes break; 2014b88c807SRodney W. Grimes } 2024b88c807SRodney W. Grimes if (ferror(fp)) { 2034b88c807SRodney W. Grimes warn("%s", filename); 204001aff9fSBruce Evans rval = 1; 2054b88c807SRodney W. Grimes clearerr(fp); 2064b88c807SRodney W. Grimes } 2074b88c807SRodney W. Grimes if (ferror(stdout)) 2084b88c807SRodney W. Grimes err(1, "stdout"); 2094b88c807SRodney W. Grimes } 2104b88c807SRodney W. Grimes 2114b88c807SRodney W. Grimes void 2124b88c807SRodney W. Grimes raw_args(argv) 2134b88c807SRodney W. Grimes char **argv; 2144b88c807SRodney W. Grimes { 2154b88c807SRodney W. Grimes register int fd; 2164b88c807SRodney W. Grimes 2174b88c807SRodney W. Grimes fd = fileno(stdin); 2184b88c807SRodney W. Grimes filename = "stdin"; 2194b88c807SRodney W. Grimes do { 2204b88c807SRodney W. Grimes if (*argv) { 2214b88c807SRodney W. Grimes if (!strcmp(*argv, "-")) 2224b88c807SRodney W. Grimes fd = fileno(stdin); 2234b88c807SRodney W. Grimes else if ((fd = open(*argv, O_RDONLY, 0)) < 0) { 2244b88c807SRodney W. Grimes warn("%s", *argv); 225001aff9fSBruce Evans rval = 1; 2264b88c807SRodney W. Grimes ++argv; 2274b88c807SRodney W. Grimes continue; 2284b88c807SRodney W. Grimes } 2294b88c807SRodney W. Grimes filename = *argv++; 2304b88c807SRodney W. Grimes } 2314b88c807SRodney W. Grimes raw_cat(fd); 2324b88c807SRodney W. Grimes if (fd != fileno(stdin)) 2334b88c807SRodney W. Grimes (void)close(fd); 2344b88c807SRodney W. Grimes } while (*argv); 2354b88c807SRodney W. Grimes } 2364b88c807SRodney W. Grimes 2374b88c807SRodney W. Grimes void 2384b88c807SRodney W. Grimes raw_cat(rfd) 2394b88c807SRodney W. Grimes register int rfd; 2404b88c807SRodney W. Grimes { 241a5da0999SWarner Losh register int off, wfd; 242a5da0999SWarner Losh ssize_t nr, nw; 243a5da0999SWarner Losh static size_t bsize; 2444b88c807SRodney W. Grimes static char *buf; 2454b88c807SRodney W. Grimes struct stat sbuf; 2464b88c807SRodney W. Grimes 2474b88c807SRodney W. Grimes wfd = fileno(stdout); 2484b88c807SRodney W. Grimes if (buf == NULL) { 2494b88c807SRodney W. Grimes if (fstat(wfd, &sbuf)) 2504b88c807SRodney W. Grimes err(1, "%s", filename); 2514b88c807SRodney W. Grimes bsize = MAX(sbuf.st_blksize, 1024); 252d1762d1fSWarner Losh if ((buf = malloc(bsize)) == NULL) 2532192b407SJeroen Ruigrok van der Werven err(1, "buffer"); 2544b88c807SRodney W. Grimes } 2554b88c807SRodney W. Grimes while ((nr = read(rfd, buf, bsize)) > 0) 2564b88c807SRodney W. Grimes for (off = 0; nr; nr -= nw, off += nw) 257a5da0999SWarner Losh if ((nw = write(wfd, buf + off, (size_t)nr)) < 0) 2584b88c807SRodney W. Grimes err(1, "stdout"); 259001aff9fSBruce Evans if (nr < 0) { 2604b88c807SRodney W. Grimes warn("%s", filename); 261001aff9fSBruce Evans rval = 1; 262001aff9fSBruce Evans } 2634b88c807SRodney W. Grimes } 264