From 1082b6873682a1ccab5ab3e76612fea56ca50023 Mon Sep 17 00:00:00 2001 From: Poul-Henning Kamp Date: Fri, 24 Nov 2000 10:18:52 +0000 Subject: [PATCH] Let the pwd program double as realpath(1). This lets you resolve pathnames to their underlying physical path: critter# realpath /sys/kern/subr_disk.c /freebsd/src/sys/kern/subr_disk.c Update the pwd man-page slightly. --- bin/pwd/Makefile | 2 ++ bin/pwd/pwd.1 | 3 ++ bin/pwd/pwd.c | 21 +++++++++---- bin/pwd/realpath.1 | 68 +++++++++++++++++++++++++++++++++++++++++ bin/realpath/realpath.1 | 68 +++++++++++++++++++++++++++++++++++++++++ 5 files changed, 156 insertions(+), 6 deletions(-) create mode 100644 bin/pwd/realpath.1 create mode 100644 bin/realpath/realpath.1 diff --git a/bin/pwd/Makefile b/bin/pwd/Makefile index 4a8e66ac8320..be42836f92be 100644 --- a/bin/pwd/Makefile +++ b/bin/pwd/Makefile @@ -2,5 +2,7 @@ # $FreeBSD$ PROG= pwd +LINKS= ${BINDIR}/pwd ${BINDIR}/realpath +MAN1= pwd.1 realpath.1 .include diff --git a/bin/pwd/pwd.1 b/bin/pwd/pwd.1 index afbe03c753a0..ead40c77beb7 100644 --- a/bin/pwd/pwd.1 +++ b/bin/pwd/pwd.1 @@ -64,6 +64,9 @@ The utility is expected to be .St -p1003.2 compatible. +The +.Fl L +flag is not supported. .Sh SEE ALSO .Xr builtin 1 , .Xr cd 1 , diff --git a/bin/pwd/pwd.c b/bin/pwd/pwd.c index 1adb3c86f508..849c309926ac 100644 --- a/bin/pwd/pwd.c +++ b/bin/pwd/pwd.c @@ -49,6 +49,7 @@ static const char rcsid[] = #include #include #include +#include void usage __P((void)); @@ -59,13 +60,13 @@ main(argc, argv) { int ch; char *p; + char buf[MAXPATHLEN]; /* * Flags for pwd are a bit strange. The POSIX 1003.2B/D9 document * has an optional -P flag for physical, which is what this program * will produce by default. The logical flag, -L, should fail, as - * there's no way to display a logical path after forking. We don't - * document either flag, only adding -P for future portability. + * there's no way to display a logical path after forking. */ while ((ch = getopt(argc, argv, "P")) != -1) switch (ch) { @@ -78,12 +79,20 @@ main(argc, argv) argc -= optind; argv += optind; - if (argc != 0) + if (argc == 1) { + p = realpath(argv[0], buf); + if (p == NULL) + err(1, argv[0]); + (void)printf("%s\n", p); + } else if (argc == 0) { + p = getcwd(NULL, 0); + if (p == NULL) + err(1, "."); + (void)printf("%s\n", p); + } else { usage(); + } - if ((p = getcwd(NULL, 0)) == NULL) - err(1, "."); - (void)printf("%s\n", p); exit(0); } diff --git a/bin/pwd/realpath.1 b/bin/pwd/realpath.1 new file mode 100644 index 000000000000..683e152a6f78 --- /dev/null +++ b/bin/pwd/realpath.1 @@ -0,0 +1,68 @@ +.\" Copyright (c) 1990, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" the Institute of Electrical and Electronics Engineers, Inc. +.\" +.\" 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. +.\" +.\" @(#)pwd.1 8.2 (Berkeley) 4/28/95 +.\" From: src/bin/pwd/pwd.1,v 1.11 2000/11/20 11:39:39 ru Exp +.\" $FreeBSD$ +.\" +.Dd November 24, 2000 +.Dt REALPATH 1 +.Os FreeBSD 5.0 +.Sh NAME +.Nm realpath +.Nd return resolved physical path +.Sh SYNOPSIS +.Nm +.Ar path +.Sh DESCRIPTION +.Nm realpath +uses the +.Xr realpath 3 +function to resolve all symbolic links, extra +.Qo +/ +.Qc +characters and references to +.Pa /./ +and +.Pa /../ +in +.Ar path . +.Pp +.Sh DIAGNOSTICS +The +.Nm +utility exits 0 on success, and >0 if an error occurs. +.Sh SEE ALSO +.Xr realpath 3 diff --git a/bin/realpath/realpath.1 b/bin/realpath/realpath.1 new file mode 100644 index 000000000000..683e152a6f78 --- /dev/null +++ b/bin/realpath/realpath.1 @@ -0,0 +1,68 @@ +.\" Copyright (c) 1990, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" the Institute of Electrical and Electronics Engineers, Inc. +.\" +.\" 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. +.\" +.\" @(#)pwd.1 8.2 (Berkeley) 4/28/95 +.\" From: src/bin/pwd/pwd.1,v 1.11 2000/11/20 11:39:39 ru Exp +.\" $FreeBSD$ +.\" +.Dd November 24, 2000 +.Dt REALPATH 1 +.Os FreeBSD 5.0 +.Sh NAME +.Nm realpath +.Nd return resolved physical path +.Sh SYNOPSIS +.Nm +.Ar path +.Sh DESCRIPTION +.Nm realpath +uses the +.Xr realpath 3 +function to resolve all symbolic links, extra +.Qo +/ +.Qc +characters and references to +.Pa /./ +and +.Pa /../ +in +.Ar path . +.Pp +.Sh DIAGNOSTICS +The +.Nm +utility exits 0 on success, and >0 if an error occurs. +.Sh SEE ALSO +.Xr realpath 3