chmod: Add -HLP flags and update manpage
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21
chmod.1
21
chmod.1
@ -6,9 +6,12 @@
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.Nd change file mode
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.Sh SYNOPSIS
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.Nm
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.Op Fl R
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.Oo
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.Fl R
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.Op Fl H | L | P
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.Oc
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.Ar mode
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.Op Ar file ...
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.Ar file ...
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.Sh DESCRIPTION
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.Nm
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changes the file mode of the given
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@ -54,9 +57,17 @@ read | write | execute | setuid and setgid | sticky
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.Sh OPTIONS
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.Bl -tag -width Ds
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.It Fl R
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Change modes recursively
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Change modes recursively.
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.It Fl H
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Only dereference symbolic links that are passed as command line arguments when
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recursively traversing directories.
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.It Fl L
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Always dereference symbolic links while recursively traversing directories.
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.It Fl P
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Don't dereference symbolic links (default).
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.El
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.Sh SEE ALSO
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.Xr chgrp 1 ,
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.Xr umask 1
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.Sh STANDARDS
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The
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@ -66,5 +77,5 @@ utility is compliant with the
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specification.
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.Pp
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The
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.Op Fl R
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flag is an extension to that specification.
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.Op Fl HLP
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flags are an extension to that specification.
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16
chmod.c
16
chmod.c
@ -3,7 +3,8 @@
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#include "util.h"
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static int rflag = 0;
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static int Rflag = 0;
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static int fflag = 'P';
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static char *modestr = "";
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static mode_t mask = 0;
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static int ret = 0;
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@ -25,14 +26,14 @@ chmodr(const char *path, int fflag)
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weprintf("chmod %s:", path);
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ret = 1;
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}
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if (rflag)
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if (Rflag)
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recurse(path, chmodr, fflag);
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}
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static void
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usage(void)
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{
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eprintf("usage: %s [-R] mode [file ...]\n", argv0);
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eprintf("usage: %s [-R [-H | -L | -P]] mode file ...\n", argv0);
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}
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int
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@ -44,7 +45,12 @@ main(int argc, char *argv[])
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for (i = 1; i < argc && argv[i][0] == '-'; i++) {
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switch (argv[i][1]) {
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case 'R':
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rflag = 1;
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Rflag = 1;
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break;
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case 'H':
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case 'L':
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case 'P':
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fflag = argv[i][1];
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break;
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case 'r': case 'w': case 'x': case 's': case 't':
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/*
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@ -65,7 +71,7 @@ done:
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usage();
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for (++i; i < argc; i++)
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chmodr(argv[i], 'P');
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chmodr(argv[i], fflag);
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return ret;
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}
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