diff options
Diffstat (limited to 'usr.bin/tail')
| -rw-r--r-- | usr.bin/tail/Makefile | 4 | ||||
| -rw-r--r-- | usr.bin/tail/extern.h | 8 | ||||
| -rw-r--r-- | usr.bin/tail/forward.c | 46 | ||||
| -rw-r--r-- | usr.bin/tail/misc.c | 70 | ||||
| -rw-r--r-- | usr.bin/tail/reverse.c | 32 | ||||
| -rw-r--r-- | usr.bin/tail/tail.c | 7 |
6 files changed, 117 insertions, 50 deletions
diff --git a/usr.bin/tail/Makefile b/usr.bin/tail/Makefile index 6b94b2c250e..5001de0616c 100644 --- a/usr.bin/tail/Makefile +++ b/usr.bin/tail/Makefile @@ -1,6 +1,6 @@ -# $OpenBSD: Makefile,v 1.4 1997/09/21 11:51:04 deraadt Exp $ +# $OpenBSD: Makefile,v 1.5 1999/02/03 02:09:30 millert Exp $ PROG= tail -SRCS= forward.c read.c reverse.c tail.c +SRCS= forward.c misc.c read.c reverse.c tail.c .include <bsd.prog.mk> diff --git a/usr.bin/tail/extern.h b/usr.bin/tail/extern.h index 3bcd1ad5e13..a87460ac699 100644 --- a/usr.bin/tail/extern.h +++ b/usr.bin/tail/extern.h @@ -1,4 +1,4 @@ -/* $OpenBSD: extern.h,v 1.3 1997/01/12 23:43:04 millert Exp $ */ +/* $OpenBSD: extern.h,v 1.4 1999/02/03 02:09:30 millert Exp $ */ /* $NetBSD: extern.h,v 1.3 1994/11/23 07:42:00 jtc Exp $ */ /*- @@ -36,9 +36,6 @@ * @(#)extern.h 8.1 (Berkeley) 6/6/93 */ -#define ierr() (err(0, fname)) -#define oerr() (err(1, "stdout")) - #define WR(p, size) \ if (write(STDOUT_FILENO, p, size) != size) \ oerr(); @@ -51,5 +48,8 @@ void reverse __P((FILE *, enum STYLE, long, struct stat *)); void bytes __P((FILE *, off_t)); void lines __P((FILE *, off_t)); +void ierr __P((void)); +void oerr __P((void)); + extern int fflag, rflag, rval; extern char *fname; diff --git a/usr.bin/tail/forward.c b/usr.bin/tail/forward.c index ae48d56791c..f77edd00a6f 100644 --- a/usr.bin/tail/forward.c +++ b/usr.bin/tail/forward.c @@ -1,4 +1,4 @@ -/* $OpenBSD: forward.c,v 1.6 1997/05/30 19:33:44 millert Exp $ */ +/* $OpenBSD: forward.c,v 1.7 1999/02/03 02:09:30 millert Exp $ */ /* $NetBSD: forward.c,v 1.7 1996/02/13 16:49:10 ghudson Exp $ */ /*- @@ -41,7 +41,7 @@ #if 0 static char sccsid[] = "@(#)forward.c 8.1 (Berkeley) 6/6/93"; #endif -static char rcsid[] = "$OpenBSD: forward.c,v 1.6 1997/05/30 19:33:44 millert Exp $"; +static char rcsid[] = "$OpenBSD: forward.c,v 1.7 1999/02/03 02:09:30 millert Exp $"; #endif /* not lint */ #include <sys/types.h> @@ -59,7 +59,7 @@ static char rcsid[] = "$OpenBSD: forward.c,v 1.6 1997/05/30 19:33:44 millert Exp #include "extern.h" -static void rlines __P((FILE *, long, struct stat *)); +static int rlines __P((FILE *, long, struct stat *)); /* * forward -- display the file, from an offset, forward. @@ -136,7 +136,8 @@ forward(fp, style, off, sbp) return; } } else if (off == 0) { - while (getc(fp) != EOF); + while (getc(fp) != EOF) + ; if (ferror(fp)) { ierr(); return; @@ -145,16 +146,17 @@ forward(fp, style, off, sbp) bytes(fp, off); break; case RLINES: - if (S_ISREG(sbp->st_mode)) + if (S_ISREG(sbp->st_mode)) { if (!off) { if (fseek(fp, 0L, SEEK_END) == -1) { ierr(); return; } - } else - rlines(fp, off, sbp); - else if (off == 0) { - while (getc(fp) != EOF); + } else if (rlines(fp, off, sbp) != 0) + lines(fp, off); + } else if (off == 0) { + while (getc(fp) != EOF) + ; if (ferror(fp)) { ierr(); return; @@ -199,7 +201,7 @@ forward(fp, style, off, sbp) /* * rlines -- display the last offset lines of the file. */ -static void +static int rlines(fp, off, sbp) FILE *fp; long off; @@ -210,18 +212,14 @@ rlines(fp, off, sbp) char *start; if (!(size = sbp->st_size)) - return; + return (0); - if (size > SIZE_T_MAX) { - errx(0, "%s: %s", fname, strerror(EFBIG)); - return; - } + if (size > SIZE_T_MAX) + return (1); - if ((start = mmap(NULL, (size_t)size, - PROT_READ, 0, fileno(fp), (off_t)0)) == (caddr_t)-1) { - errx(0, "%s: %s", fname, strerror(EFBIG)); - return; - } + if ((start = mmap(NULL, (size_t)size, PROT_READ, 0, fileno(fp), + (off_t)0)) == (caddr_t)-1) + return (1); /* Last char is special, ignore whether newline or not. */ for (p = start + size - 1; --size;) @@ -235,10 +233,12 @@ rlines(fp, off, sbp) WR(p, size); if (fseek(fp, (long)sbp->st_size, SEEK_SET) == -1) { ierr(); - return; + return (1); } if (munmap(start, (size_t)sbp->st_size)) { - err(0, fname); - return; + ierr(); + return (1); } + + return (0); } diff --git a/usr.bin/tail/misc.c b/usr.bin/tail/misc.c new file mode 100644 index 00000000000..f997a0da727 --- /dev/null +++ b/usr.bin/tail/misc.c @@ -0,0 +1,70 @@ +/* $OpenBSD: misc.c,v 1.4 1999/02/03 02:09:30 millert Exp $ */ + +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Edward Sze-Tyan Wang. + * + * 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. + */ + +#ifndef lint +#if 0 +static char sccsid[] = "@(#)misc.c 8.1 (Berkeley) 6/6/93"; +#else +static char rcsid[] = "$OpenBSD: misc.c,v 1.4 1999/02/03 02:09:30 millert Exp $"; +#endif +#endif /* not lint */ + +#include <sys/types.h> +#include <sys/stat.h> +#include <err.h> +#include <errno.h> +#include <unistd.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include "extern.h" + +void +ierr() +{ + + warn("%s", fname); + rval = 1; +} + +void +oerr() +{ + + err(1, "stdout"); +} diff --git a/usr.bin/tail/reverse.c b/usr.bin/tail/reverse.c index 9711616978b..13dd65795fc 100644 --- a/usr.bin/tail/reverse.c +++ b/usr.bin/tail/reverse.c @@ -1,4 +1,4 @@ -/* $OpenBSD: reverse.c,v 1.3 1997/01/12 23:43:06 millert Exp $ */ +/* $OpenBSD: reverse.c,v 1.4 1999/02/03 02:09:30 millert Exp $ */ /* $NetBSD: reverse.c,v 1.6 1994/11/23 07:42:10 jtc Exp $ */ /*- @@ -41,7 +41,7 @@ #if 0 static char sccsid[] = "@(#)reverse.c 8.1 (Berkeley) 6/6/93"; #endif -static char rcsid[] = "$OpenBSD: reverse.c,v 1.3 1997/01/12 23:43:06 millert Exp $"; +static char rcsid[] = "$OpenBSD: reverse.c,v 1.4 1999/02/03 02:09:30 millert Exp $"; #endif /* not lint */ #include <sys/param.h> @@ -59,7 +59,7 @@ static char rcsid[] = "$OpenBSD: reverse.c,v 1.3 1997/01/12 23:43:06 millert Exp #include "extern.h" static void r_buf __P((FILE *)); -static void r_reg __P((FILE *, enum STYLE, long, struct stat *)); +static int r_reg __P((FILE *, enum STYLE, long, struct stat *)); /* * reverse -- display input in reverse order by line. @@ -89,9 +89,7 @@ reverse(fp, style, off, sbp) if (style != REVERSE && off == 0) return; - if (S_ISREG(sbp->st_mode)) - r_reg(fp, style, off, sbp); - else + if (!S_ISREG(sbp->st_mode) || r_reg(fp, style, off, sbp) != 0) switch(style) { case FBYTES: case RBYTES: @@ -110,7 +108,7 @@ reverse(fp, style, off, sbp) /* * r_reg -- display a regular file in reverse order by line. */ -static void +static int r_reg(fp, style, off, sbp) FILE *fp; register enum STYLE style; @@ -123,18 +121,14 @@ r_reg(fp, style, off, sbp) char *start; if (!(size = sbp->st_size)) - return; + return (0); - if (size > SIZE_T_MAX) { - errx(0, "%s: %s", fname, strerror(EFBIG)); - return; - } + if (size > SIZE_T_MAX) + return (1); - if ((start = mmap(NULL, (size_t)size, - PROT_READ, 0, fileno(fp), (off_t)0)) == (caddr_t)-1) { - errx(0, "%s: %s", fname, strerror(EFBIG)); - return; - } + if ((start = mmap(NULL, (size_t)size, PROT_READ, 0, fileno(fp), + (off_t)0)) == (caddr_t)-1) + return (1); p = start + size - 1; if (style == RBYTES && off < size) @@ -153,7 +147,9 @@ r_reg(fp, style, off, sbp) if (llen) WR(p, llen); if (munmap(start, (size_t)sbp->st_size)) - err(0, fname); + ierr(); + + return (0); } typedef struct bf { diff --git a/usr.bin/tail/tail.c b/usr.bin/tail/tail.c index 70aa03547b7..8aae71e370c 100644 --- a/usr.bin/tail/tail.c +++ b/usr.bin/tail/tail.c @@ -1,4 +1,4 @@ -/* $OpenBSD: tail.c,v 1.4 1997/01/15 23:43:18 millert Exp $ */ +/* $OpenBSD: tail.c,v 1.5 1999/02/03 02:09:30 millert Exp $ */ /*- * Copyright (c) 1991, 1993 @@ -46,7 +46,7 @@ static char copyright[] = #if 0 static char sccsid[] = "@(#)tail.c 8.1 (Berkeley) 6/6/93"; #endif -static char rcsid[] = "$OpenBSD: tail.c,v 1.4 1997/01/15 23:43:18 millert Exp $"; +static char rcsid[] = "$OpenBSD: tail.c,v 1.5 1999/02/03 02:09:30 millert Exp $"; #endif /* not lint */ #include <sys/types.h> @@ -158,7 +158,7 @@ main(argc, argv) * If style not specified, the default is the whole file for -r, and * the last 10 lines if not -r. */ - if (style == NOTSET) + if (style == NOTSET) { if (rflag) { off = 0; style = REVERSE; @@ -166,6 +166,7 @@ main(argc, argv) off = 10; style = RLINES; } + } if (*argv) for (first = 1; (fname = *argv++);) { |