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author | Jim Meyering <jim@meyering.net> | 1992-10-31 20:42:48 +0000 |
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committer | Jim Meyering <jim@meyering.net> | 1992-10-31 20:42:48 +0000 |
commit | 14fd34b78818660e05806b6eda178e3f846c5c21 (patch) | |
tree | b40038aa2684b5cd95ae2d5fcef564bcf8e05cc3 /src/mkfifo.c | |
download | coreutils-14fd34b78818660e05806b6eda178e3f846c5c21.tar.xz |
Initial revision
Diffstat (limited to 'src/mkfifo.c')
-rw-r--r-- | src/mkfifo.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/src/mkfifo.c b/src/mkfifo.c new file mode 100644 index 000000000..71a98cecd --- /dev/null +++ b/src/mkfifo.c @@ -0,0 +1,108 @@ +/* mkfifo -- make fifo's (named pipes) + Copyright (C) 1990, 1991 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +/* Options: + -m, --mode=mode Set the mode of created fifo's to MODE, which is + symbolic as in chmod and uses the umask as a point of + departure. + + David MacKenzie <djm@ai.mit.edu> */ + +#include <stdio.h> +#include <getopt.h> +#include <sys/types.h> +#include "system.h" +#include "modechange.h" + +void error (); +void usage (); + +/* The name this program was run with. */ +char *program_name; + +struct option longopts[] = +{ + {"mode", 1, NULL, 'm'}, + {NULL, 0, NULL, 0} +}; + +void +main (argc, argv) + int argc; + char **argv; +{ + unsigned short newmode; + struct mode_change *change; + char *symbolic_mode; + int errors = 0; + int optc; + + program_name = argv[0]; + symbolic_mode = NULL; + +#ifndef S_ISFIFO + error (4, 0, "fifo files not supported"); +#else + while ((optc = getopt_long (argc, argv, "m:", longopts, (int *) 0)) != EOF) + { + switch (optc) + { + case 'm': + symbolic_mode = optarg; + break; + default: + usage (); + } + } + + if (optind == argc) + usage (); + + newmode = 0666 & ~umask (0); + if (symbolic_mode) + { + change = mode_compile (symbolic_mode, 0); + if (change == MODE_INVALID) + error (1, 0, "invalid mode"); + else if (change == MODE_MEMORY_EXHAUSTED) + error (1, 0, "virtual memory exhausted"); + newmode = mode_adjust (newmode, change); + } + + for (; optind < argc; ++optind) + { + if (mkfifo (argv[optind], newmode)) + { + error (0, errno, "cannot make fifo `%s'", argv[optind]); + errors = 1; + } + } + + exit (errors); +#endif +} + +#ifdef S_ISFIFO +void +usage () +{ + fprintf (stderr, "\ +Usage: %s [-m mode] [--mode=mode] path...\n", + program_name); + exit (1); +} +#endif |