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- /*
- * Copyright (c) 1989 The Regents of the University of California.
- * All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Kevin Fall.
- *
- * 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.
- */
-
-
- #ifdef DF_POSIX
- #include <misc.h>
- #include <bsdlib.h>
- #endif
- #include <sys/cdefs.h>
-
- #ifndef lint
- char copyright[] =
- "@(#) Copyright (c) 1989 The Regents of the University of California.\n\
- All rights reserved.\n";
- #endif /* not lint */
-
- #ifndef lint
- static char sccsid[] = "@(#)cat.c 5.15 (Berkeley) 5/23/91";
- #endif /* not lint */
-
- #ifdef _POSIX_SOURCE
- #else
- #include <sys/param.h>
- #endif
-
- #include <sys/stat.h>
- #include <fcntl.h>
- #include <errno.h>
- #include <unistd.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <ctype.h>
-
- int bflag, eflag, nflag, sflag, tflag, vflag;
- int rval;
- char *filename;
-
- void cook_args __P((char **));
- void cook_buf __P((register FILE *));
- void raw_args __P((char **));
- void raw_cat __P((register int));
- void err __P((int, const char *, ...));
-
- #if WIN_NT
- extern int globulate __P((int, int, char **));
- extern void deglobulate __P((void));
- extern int globulated_argc;
- extern char **globulated_argv;
- pid_t ppid;
- int globulation;
- #endif
-
- int
- #if __STDC__
- main (int argc, char **argv)
- #else
- main(argc, argv)
- int argc;
- char **argv;
- #endif
- {
- extern int optind;
- int ch;
- #if 0
- ssize_t n;
- int saved_errno;
- static const char text[] = "moo goo gi pan";
- #endif
-
- #if WIN_NT
- ppid = getppid();
- if (ppid == (pid_t) 1) /* if parent is CMD.EXE */
- {
- globulation = globulate(1, argc, argv);
- if (globulation == 0)
- {
- argc = globulated_argc;
- argv = globulated_argv;
- }
- }
- #endif
- #if 0
- n = write(1, text, sizeof text - 1);
- saved_errno = errno;
- fprintf(stderr, "n: %d; errno: %d\n", n, saved_errno);
- fflush(stderr);
- #endif
- while ((ch = getopt(argc, argv, "benstuv")) != EOF)
- switch (ch) {
- case 'b':
- bflag = nflag = 1; /* -b implies -n */
- break;
- case 'e':
- eflag = vflag = 1; /* -e implies -v */
- break;
- case 'n':
- nflag = 1;
- break;
- case 's':
- sflag = 1;
- break;
- case 't':
- tflag = vflag = 1; /* -t implies -v */
- break;
- case 'u':
- setbuf(stdout, (char *)NULL);
- break;
- case 'v':
- vflag = 1;
- break;
- case '?':
- (void)fprintf(stderr,
- "usage: cat [-benstuv] [-] [file ...]\n");
- #if WIN_NT
- if (ppid == (pid_t) 1 && globulation == 0)
- deglobulate();
- #endif
- exit(EXIT_FAILURE);
- }
- argv += optind;
-
- if (bflag || eflag || nflag || sflag || tflag || vflag)
- cook_args(argv);
- else
- raw_args(argv);
- #ifdef DF_POSIX /* DF_MSS */
- #if WIN_NT
- if (ppid == (pid_t) 1 && globulation == 0)
- deglobulate();
- #endif
- return rval;
- #else
- if (ch = fclose(stdout)) {
- fprintf(stdout, "ch X%dX\n", ch);
- fflush(stdout);
- err(EXIT_FAILURE, "stdout: %s", strerror(errno));
- }
- exit(rval);
- #endif
- }
-
- void
- #if __STDC__
- cook_args (char **argv)
- #else
- cook_args(argv)
- char **argv;
- #endif
- {
- register FILE *fp;
-
- fp = stdin;
- filename = "stdin";
- do {
- if (*argv) {
- if (!strcmp(*argv, "-"))
- fp = stdin;
- else if (!(fp = fopen(*argv, "r"))) {
- #if 0
- fprintf(stderr, "err #1\n");
- fflush(stderr);
- #endif
- err(0, "%s: %s", *argv, strerror(errno));
- ++argv;
- continue;
- }
- filename = *argv++;
- }
- cook_buf(fp);
- if (fp != stdin)
- (void)fclose(fp);
- } while (*argv);
- }
-
- void
- #if __STDC__
- cook_buf (register FILE *fp)
- #else
- cook_buf(fp)
- register FILE *fp;
- #endif
- {
- register int ch, gobble, line, prev;
- #if WIN_NT
- register int c;
- #endif
-
- line = gobble = 0;
- for (prev = '\n'; (ch = getc(fp)) != EOF; prev = ch) {
- #if WIN_NT
- if ( ch == '\r' )
- if (( c = getc(fp)) == '\n' )
- {
- if ( !gobble )
- putchar(ch);
- ch = c;
- }
- else
- {
- if ( c == EOF )
- {
- putchar(ch);
- break;
- }
- ungetc(c,fp);
- }
- #endif
- if (prev == '\n') {
- if (ch == '\n') {
- if (sflag) {
- if (!gobble && putchar(ch) == EOF)
- break;
- gobble = 1;
- continue;
- }
- if (nflag && !bflag) {
- (void)fprintf(stdout, "%6d\t", ++line);
- if (ferror(stdout))
- break;
- }
- } else if (nflag) {
- (void)fprintf(stdout, "%6d\t", ++line);
- if (ferror(stdout))
- break;
- }
- }
- gobble = 0;
- if (ch == '\n') {
- if (eflag)
- if (putchar('$') == EOF)
- break;
- } else if (ch == '\t') {
- if (tflag) {
- if (putchar('^') == EOF || putchar('I') == EOF)
- break;
- continue;
- }
- } else if (vflag) {
- if (!isascii(ch)) {
- if (putchar('M') == EOF || putchar('-') == EOF)
- break;
- ch = toascii(ch);
- }
- if (iscntrl(ch)) {
- if (putchar('^') == EOF ||
- putchar(ch == '\177' ? '?' :
- ch | 0100) == EOF)
- break;
- continue;
- }
- }
- if (putchar(ch) == EOF)
- break;
- }
- if (ferror(fp)) {
- #if 0
- fprintf(stderr, "err #2\n");
- fflush(stderr);
- #endif
- err(0, "cat: %s", strerror(errno));
- clearerr(fp);
- }
- if (ferror(stdout)) {
- #if 0
- fprintf(stderr, "err #3\n");
- fflush(stderr);
- #endif
- err(EXIT_FAILURE, "stdout: %s", strerror(errno));
- }
- }
-
- void
- #if __STDC__
- raw_args (char **argv)
- #else
- raw_args(argv)
- char **argv;
- #endif
- {
- register int fd;
-
- fd = fileno(stdin);
- filename = "stdin";
- do {
- if (*argv) {
- if (!strcmp(*argv, "-"))
- fd = fileno(stdin);
- else if ((fd = open(*argv, O_RDONLY, 0)) < 0) {
- #if 0
- fprintf(stderr, "err #4\n");
- fflush(stderr);
- #endif
- err(0, "%s: %s", *argv, strerror(errno));
- ++argv;
- continue;
- }
- filename = *argv++;
- }
- raw_cat(fd);
- if (fd != fileno(stdin))
- (void)close(fd);
- } while (*argv);
- }
-
- void
- #if __STDC__
- raw_cat (register int rfd)
- #else
- raw_cat(rfd)
- register int rfd;
- #endif
- {
- register int nr, nw, off, wfd;
- static int bsize;
- static char *buf;
- struct stat sbuf;
-
- wfd = fileno(stdout);
- if (!buf) {
- if (fstat(wfd, &sbuf)) {
- #if 0
- fprintf(stderr, "err #5\n");
- fflush(stderr);
- #endif
- err(EXIT_FAILURE, "%s: %s", filename, strerror(errno));
- }
- #ifdef DF_POSIX /* DF_MSS */
- bsize = __max(/*sbuf.st_blksize*/ 1024, 1024);
- #else
- bsize = MAX(sbuf.st_blksize, 1024);
- #endif
-
- if (!(buf = malloc((u_int)bsize))) {
- #if 0
- fprintf(stderr, "err #6\n");
- fflush(stderr);
- #endif
- err(EXIT_FAILURE, "%s", strerror(errno));
- }
- }
- while ((nr = read(rfd, buf, bsize)) > 0) {
- #if 0
- fprintf(stderr, "read %d bytes: \"%.*s\"\n", nr, nr, buf);
- fflush(stderr);
- #endif
- for (off = 0; off < nr; nr -= nw, off += nw)
- if ((nw = write(wfd, buf + off, nr)) < 0) {
- #if 0
- int saved_errno;
- saved_errno = errno;
- fprintf(stderr, "err #7 - errno: %d; wfd: %d; isatty(wfd): %d\n", saved_errno, wfd, isatty(wfd));
- fflush(stderr);
- #endif
- err(EXIT_FAILURE, "stdout");
- }
- }
- if (nr < 0) {
- #if 0
- fprintf(stderr, "err #8\n");
- fflush(stderr);
- #endif
- err(0, "%s: %s", filename, strerror(errno));
- }
- }
-
- #if __STDC__
- #include <stdarg.h>
- #else
- #include <varargs.h>
- #endif
-
- void
- #if __STDC__
- err (int ex, const char *fmt, ...)
- #else
- err(ex, fmt, va_alist)
- int ex;
- char *fmt;
- va_dcl
- #endif
- {
- va_list ap;
-
- #if __STDC__
- va_start(ap, fmt);
- #else
- va_start(ap);
- #endif
- #if 0
- fprintf(stderr, "cat - err\n");
- fflush(stderr);
- #endif
- (void)fprintf(stderr, "cat: ");
- (void)vfprintf(stderr, fmt, ap);
- va_end(ap);
- (void)fprintf(stderr, "\n");
- if (ex) {
- #if WIN_NT
- if (ppid == (pid_t) 1 && globulation == 0)
- deglobulate();
- #endif
- exit(EXIT_FAILURE);
- }
- rval = 1;
- }
-