110 lines
1.9 KiB
C
110 lines
1.9 KiB
C
/*
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* A swapon(8)/swapoff(8) for Linux 0.99.
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* swapon.c,v 1.1.1.1 1993/11/18 08:40:51 jrs Exp
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*/
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#include "sundries.h"
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/* Nonzero for chatty (-v). This is a nonstandard flag (not in BSD). */
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int verbose = 0;
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extern char version[];
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static char *program_name;
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static struct option longopts[] =
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{
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{ "all", 0, 0, 'a' },
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{ "help", 0, 0, 'h' },
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{ "verbose", 0, 0, 'v' },
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{ "version", 0, 0, 'V' },
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{ NULL, 0, 0, 0 }
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};
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const char *usage_string = "\
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usage: %s [-hV]\n\
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%s -a [-v]\n\
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%s [-v] special ...\n\
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";
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static void
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usage (FILE *fp, int n)
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{
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fprintf (fp, usage_string, program_name, program_name, program_name);
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exit (n);
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}
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static int
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swap (const char *special)
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{
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int status;
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if (verbose)
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printf("%s on device %s\n", program_name, special);
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if (streq (program_name, "swapon"))
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status = swapon (special);
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else
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status = swapoff (special);
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if (status < 0)
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fprintf (stderr, "%s: %s: %s\n", program_name, special, strerror (errno));
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return status;
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}
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int
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main (int argc, char *argv[])
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{
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struct fstab *fstab;
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int status;
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int all = 0;
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int c;
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if (strrchr (argv[0], '/') != NULL)
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program_name = strrchr (argv[0], '/') + 1;
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else
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program_name = argv[0];
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while ((c = getopt_long (argc, argv, "ahvV", longopts, NULL)) != EOF)
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switch (c)
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{
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case 'a': /* all */
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++all;
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break;
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case 'h': /* help */
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usage (stdout, 0);
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break;
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case 'v': /* be chatty */
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++verbose;
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break;
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case 'V': /* version */
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printf ("%s\n", version);
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exit (0);
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case 0:
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break;
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case '?':
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default:
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usage (stderr, 1);
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}
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argv += optind;
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status = 0;
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if (all)
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{
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while ((fstab = getfsent()) != NULL)
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if (streq (fstab->fs_type, FSTAB_SW))
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status |= swap (fstab->fs_spec);
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}
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else if (*argv == NULL)
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{
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usage (stderr, 2);
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}
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else
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{
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while (*argv != NULL)
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status |= swap (*argv++);
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}
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return status;
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}
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