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> 53cbf2d71fSMatthew Dillon #ifndef NO_UDOM_SUPPORT 54cbf2d71fSMatthew Dillon #include <sys/socket.h> 55cbf2d71fSMatthew Dillon #include <sys/un.h> 56cbf2d71fSMatthew Dillon #include <errno.h> 57cbf2d71fSMatthew Dillon #endif 584b88c807SRodney W. Grimes 594b88c807SRodney W. Grimes #include <ctype.h> 604b88c807SRodney W. Grimes #include <err.h> 614b88c807SRodney W. Grimes #include <fcntl.h> 623043192bSAndrey A. Chernov #include <locale.h> 634b88c807SRodney W. Grimes #include <stdio.h> 644b88c807SRodney W. Grimes #include <stdlib.h> 65cafefe8cSDima Dorfman #include <string.h> 664b88c807SRodney W. Grimes #include <unistd.h> 67cbf2d71fSMatthew Dillon #include <stddef.h> 684b88c807SRodney W. Grimes 694b88c807SRodney W. Grimes int bflag, eflag, nflag, sflag, tflag, vflag; 704b88c807SRodney W. Grimes int rval; 71a5da0999SWarner Losh const char *filename; 724b88c807SRodney W. Grimes 7378a3801dSWarner Losh static void scanfiles(char **argv, int cooked); 7478a3801dSWarner Losh static void cook_cat(FILE *); 7578a3801dSWarner Losh static void raw_cat(int); 76cbf2d71fSMatthew Dillon 77cbf2d71fSMatthew Dillon #ifndef NO_UDOM_SUPPORT 7878a3801dSWarner Losh static int udom_open(const char *path, int flags); 79cbf2d71fSMatthew Dillon #endif 804b88c807SRodney W. Grimes 814b88c807SRodney W. Grimes int 8278a3801dSWarner Losh main(int argc, char *argv[]) 834b88c807SRodney W. Grimes { 844b88c807SRodney W. Grimes int ch; 854b88c807SRodney W. Grimes 863043192bSAndrey A. Chernov setlocale(LC_CTYPE, ""); 873043192bSAndrey A. Chernov 8893ef08afSWarner Losh while ((ch = getopt(argc, argv, "benstuv")) != -1) 894b88c807SRodney W. Grimes switch (ch) { 904b88c807SRodney W. Grimes case 'b': 914b88c807SRodney W. Grimes bflag = nflag = 1; /* -b implies -n */ 924b88c807SRodney W. Grimes break; 934b88c807SRodney W. Grimes case 'e': 944b88c807SRodney W. Grimes eflag = vflag = 1; /* -e implies -v */ 954b88c807SRodney W. Grimes break; 964b88c807SRodney W. Grimes case 'n': 974b88c807SRodney W. Grimes nflag = 1; 984b88c807SRodney W. Grimes break; 994b88c807SRodney W. Grimes case 's': 1004b88c807SRodney W. Grimes sflag = 1; 1014b88c807SRodney W. Grimes break; 1024b88c807SRodney W. Grimes case 't': 1034b88c807SRodney W. Grimes tflag = vflag = 1; /* -t implies -v */ 1044b88c807SRodney W. Grimes break; 1054b88c807SRodney W. Grimes case 'u': 1062192b407SJeroen Ruigrok van der Werven setbuf(stdout, NULL); 1074b88c807SRodney W. Grimes break; 1084b88c807SRodney W. Grimes case 'v': 1094b88c807SRodney W. Grimes vflag = 1; 1104b88c807SRodney W. Grimes break; 1118d72a3d7SWarner Losh default: 1124b88c807SRodney W. Grimes (void)fprintf(stderr, 1134b88c807SRodney W. Grimes "usage: cat [-benstuv] [-] [file ...]\n"); 1144b88c807SRodney W. Grimes exit(1); 1154b88c807SRodney W. Grimes } 1164b88c807SRodney W. Grimes argv += optind; 1174b88c807SRodney W. Grimes 1184b88c807SRodney W. Grimes if (bflag || eflag || nflag || sflag || tflag || vflag) 119cbf2d71fSMatthew Dillon scanfiles(argv, 1); 1204b88c807SRodney W. Grimes else 121cbf2d71fSMatthew Dillon scanfiles(argv, 0); 1224b88c807SRodney W. Grimes if (fclose(stdout)) 1234b88c807SRodney W. Grimes err(1, "stdout"); 1244b88c807SRodney W. Grimes exit(rval); 1254b88c807SRodney W. Grimes } 1264b88c807SRodney W. Grimes 1274b88c807SRodney W. Grimes void 12878a3801dSWarner Losh scanfiles(char **argv, int cooked) 1294b88c807SRodney W. Grimes { 130cbf2d71fSMatthew Dillon int i = 0; 131cbf2d71fSMatthew Dillon char *path; 1321b00c916SRuslan Ermilov FILE *fp; 1334b88c807SRodney W. Grimes 134cbf2d71fSMatthew Dillon while ((path = argv[i]) != NULL || i == 0) { 135cbf2d71fSMatthew Dillon int fd; 136cbf2d71fSMatthew Dillon 137cbf2d71fSMatthew Dillon if (path == NULL || strcmp(path, "-") == 0) { 1384b88c807SRodney W. Grimes filename = "stdin"; 1391b00c916SRuslan Ermilov fd = STDIN_FILENO; 140cbf2d71fSMatthew Dillon } else { 141cbf2d71fSMatthew Dillon filename = path; 142cbf2d71fSMatthew Dillon fd = open(path, O_RDONLY); 143cbf2d71fSMatthew Dillon #ifndef NO_UDOM_SUPPORT 144cbf2d71fSMatthew Dillon if (fd < 0 && errno == EOPNOTSUPP) 14543e09ab2SRuslan Ermilov fd = udom_open(path, O_RDONLY); 146cbf2d71fSMatthew Dillon #endif 147cbf2d71fSMatthew Dillon } 148cbf2d71fSMatthew Dillon if (fd < 0) { 149cbf2d71fSMatthew Dillon warn("%s", path); 150001aff9fSBruce Evans rval = 1; 151cbf2d71fSMatthew Dillon } else if (cooked) { 1521b00c916SRuslan Ermilov if (fd == STDIN_FILENO) 1531b00c916SRuslan Ermilov cook_cat(stdin); 1541b00c916SRuslan Ermilov else { 1551b00c916SRuslan Ermilov fp = fdopen(fd, "r"); 156cbf2d71fSMatthew Dillon cook_cat(fp); 157cbf2d71fSMatthew Dillon fclose(fp); 1581b00c916SRuslan Ermilov } 159cbf2d71fSMatthew Dillon } else { 160cbf2d71fSMatthew Dillon raw_cat(fd); 1611b00c916SRuslan Ermilov if (fd != STDIN_FILENO) 162cbf2d71fSMatthew Dillon close(fd); 1634b88c807SRodney W. Grimes } 164cbf2d71fSMatthew Dillon if (path == NULL) 165cbf2d71fSMatthew Dillon break; 166cbf2d71fSMatthew Dillon ++i; 1674b88c807SRodney W. Grimes } 1684b88c807SRodney W. Grimes } 1694b88c807SRodney W. Grimes 170cbf2d71fSMatthew Dillon static void 17178a3801dSWarner Losh cook_cat(FILE *fp) 1724b88c807SRodney W. Grimes { 17378a3801dSWarner Losh int ch, gobble, line, prev; 1744b88c807SRodney W. Grimes 1751b00c916SRuslan Ermilov /* Reset EOF condition on stdin. */ 1761b00c916SRuslan Ermilov if (fp == stdin && feof(stdin)) 1771b00c916SRuslan Ermilov clearerr(stdin); 1781b00c916SRuslan Ermilov 1794b88c807SRodney W. Grimes line = gobble = 0; 1804b88c807SRodney W. Grimes for (prev = '\n'; (ch = getc(fp)) != EOF; prev = ch) { 1814b88c807SRodney W. Grimes if (prev == '\n') { 1824b88c807SRodney W. Grimes if (ch == '\n') { 1834b88c807SRodney W. Grimes if (sflag) { 1844b88c807SRodney W. Grimes if (!gobble && putchar(ch) == EOF) 1854b88c807SRodney W. Grimes break; 1864b88c807SRodney W. Grimes gobble = 1; 1874b88c807SRodney W. Grimes continue; 1884b88c807SRodney W. Grimes } 1894b88c807SRodney W. Grimes if (nflag && !bflag) { 1904b88c807SRodney W. Grimes (void)fprintf(stdout, "%6d\t", ++line); 1914b88c807SRodney W. Grimes if (ferror(stdout)) 1924b88c807SRodney W. Grimes break; 1934b88c807SRodney W. Grimes } 1944b88c807SRodney W. Grimes } else if (nflag) { 1954b88c807SRodney W. Grimes (void)fprintf(stdout, "%6d\t", ++line); 1964b88c807SRodney W. Grimes if (ferror(stdout)) 1974b88c807SRodney W. Grimes break; 1984b88c807SRodney W. Grimes } 1994b88c807SRodney W. Grimes } 2004b88c807SRodney W. Grimes gobble = 0; 2014b88c807SRodney W. Grimes if (ch == '\n') { 2024b88c807SRodney W. Grimes if (eflag) 2034b88c807SRodney W. Grimes if (putchar('$') == EOF) 2044b88c807SRodney W. Grimes break; 2054b88c807SRodney W. Grimes } else if (ch == '\t') { 2064b88c807SRodney W. Grimes if (tflag) { 2074b88c807SRodney W. Grimes if (putchar('^') == EOF || putchar('I') == EOF) 2084b88c807SRodney W. Grimes break; 2094b88c807SRodney W. Grimes continue; 2104b88c807SRodney W. Grimes } 2114b88c807SRodney W. Grimes } else if (vflag) { 2123043192bSAndrey A. Chernov if (!isascii(ch) && !isprint(ch)) { 2134b88c807SRodney W. Grimes if (putchar('M') == EOF || putchar('-') == EOF) 2144b88c807SRodney W. Grimes break; 2154b88c807SRodney W. Grimes ch = toascii(ch); 2164b88c807SRodney W. Grimes } 2174b88c807SRodney W. Grimes if (iscntrl(ch)) { 2184b88c807SRodney W. Grimes if (putchar('^') == EOF || 2194b88c807SRodney W. Grimes putchar(ch == '\177' ? '?' : 2204b88c807SRodney W. Grimes ch | 0100) == EOF) 2214b88c807SRodney W. Grimes break; 2224b88c807SRodney W. Grimes continue; 2234b88c807SRodney W. Grimes } 2244b88c807SRodney W. Grimes } 2254b88c807SRodney W. Grimes if (putchar(ch) == EOF) 2264b88c807SRodney W. Grimes break; 2274b88c807SRodney W. Grimes } 2284b88c807SRodney W. Grimes if (ferror(fp)) { 2294b88c807SRodney W. Grimes warn("%s", filename); 230001aff9fSBruce Evans rval = 1; 2314b88c807SRodney W. Grimes clearerr(fp); 2324b88c807SRodney W. Grimes } 2334b88c807SRodney W. Grimes if (ferror(stdout)) 2344b88c807SRodney W. Grimes err(1, "stdout"); 2354b88c807SRodney W. Grimes } 2364b88c807SRodney W. Grimes 237cbf2d71fSMatthew Dillon static void 23878a3801dSWarner Losh raw_cat(int rfd) 2394b88c807SRodney W. Grimes { 24078a3801dSWarner Losh int off, wfd; 241a5da0999SWarner Losh ssize_t nr, nw; 242a5da0999SWarner Losh static size_t bsize; 2434b88c807SRodney W. Grimes static char *buf; 2444b88c807SRodney W. Grimes struct stat sbuf; 2454b88c807SRodney W. Grimes 2464b88c807SRodney W. Grimes wfd = fileno(stdout); 2474b88c807SRodney W. Grimes if (buf == NULL) { 2484b88c807SRodney W. Grimes if (fstat(wfd, &sbuf)) 2494b88c807SRodney W. Grimes err(1, "%s", filename); 2504b88c807SRodney W. Grimes bsize = MAX(sbuf.st_blksize, 1024); 251d1762d1fSWarner Losh if ((buf = malloc(bsize)) == NULL) 2522192b407SJeroen Ruigrok van der Werven err(1, "buffer"); 2534b88c807SRodney W. Grimes } 2544b88c807SRodney W. Grimes while ((nr = read(rfd, buf, bsize)) > 0) 2554b88c807SRodney W. Grimes for (off = 0; nr; nr -= nw, off += nw) 256a5da0999SWarner Losh if ((nw = write(wfd, buf + off, (size_t)nr)) < 0) 2574b88c807SRodney W. Grimes err(1, "stdout"); 258001aff9fSBruce Evans if (nr < 0) { 2594b88c807SRodney W. Grimes warn("%s", filename); 260001aff9fSBruce Evans rval = 1; 261001aff9fSBruce Evans } 2624b88c807SRodney W. Grimes } 263cbf2d71fSMatthew Dillon 264cbf2d71fSMatthew Dillon #ifndef NO_UDOM_SUPPORT 265cbf2d71fSMatthew Dillon 266cbf2d71fSMatthew Dillon static int 26778a3801dSWarner Losh udom_open(const char *path, int flags) 268cbf2d71fSMatthew Dillon { 269cbf2d71fSMatthew Dillon struct sockaddr_un sou; 270cbf2d71fSMatthew Dillon int fd; 271cbf2d71fSMatthew Dillon int len; 272cbf2d71fSMatthew Dillon 273cbf2d71fSMatthew Dillon bzero(&sou, sizeof(sou)); 274cbf2d71fSMatthew Dillon 275cbf2d71fSMatthew Dillon /* 276cbf2d71fSMatthew Dillon * Construct the unix domain socket address and attempt to connect 277cbf2d71fSMatthew Dillon */ 278cbf2d71fSMatthew Dillon if ((fd = socket(AF_UNIX, SOCK_STREAM, 0)) >= 0) { 279cbf2d71fSMatthew Dillon sou.sun_family = AF_UNIX; 280cbf2d71fSMatthew Dillon snprintf(sou.sun_path, sizeof(sou.sun_path), "%s", path); 281cbf2d71fSMatthew Dillon len = strlen(sou.sun_path); 282cbf2d71fSMatthew Dillon len = offsetof(struct sockaddr_un, sun_path[len+1]); 283cbf2d71fSMatthew Dillon 284cbf2d71fSMatthew Dillon if (connect(fd, (void *)&sou, len) < 0) { 285cbf2d71fSMatthew Dillon close(fd); 286cbf2d71fSMatthew Dillon fd = -1; 287cbf2d71fSMatthew Dillon } 288cbf2d71fSMatthew Dillon } 289cbf2d71fSMatthew Dillon 290cbf2d71fSMatthew Dillon /* 291cbf2d71fSMatthew Dillon * handle the open flags by shutting down appropriate directions 292cbf2d71fSMatthew Dillon */ 293cbf2d71fSMatthew Dillon if (fd >= 0) { 294cbf2d71fSMatthew Dillon switch(flags & O_ACCMODE) { 295cbf2d71fSMatthew Dillon case O_RDONLY: 296cbf2d71fSMatthew Dillon shutdown(fd, SHUT_WR); 297cbf2d71fSMatthew Dillon break; 298cbf2d71fSMatthew Dillon case O_WRONLY: 299cbf2d71fSMatthew Dillon shutdown(fd, SHUT_RD); 300cbf2d71fSMatthew Dillon break; 301cbf2d71fSMatthew Dillon default: 302cbf2d71fSMatthew Dillon break; 303cbf2d71fSMatthew Dillon } 304cbf2d71fSMatthew Dillon } 305cbf2d71fSMatthew Dillon return(fd); 306cbf2d71fSMatthew Dillon } 307cbf2d71fSMatthew Dillon 308cbf2d71fSMatthew Dillon #endif 309cbf2d71fSMatthew Dillon 310