Last change
on this file since 1041 was 821, checked in by Bruno Cornec, 18 years ago |
Addition of busybox 1.2.1 as a mindi-busybox new package
This should avoid delivering binary files in mindi not built there (Fedora and Debian are quite serious about that)
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File size:
1.3 KB
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Rev | Line | |
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[821] | 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * Mini swapon/swapoff implementation for busybox
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| 4 | *
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| 5 | * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
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| 6 | *
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| 7 | * Licensed under the GPL v2, see the file LICENSE in this tarball.
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| 8 | */
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| 9 |
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| 10 | #include "busybox.h"
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| 11 | #include <mntent.h>
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| 12 | #include <dirent.h>
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| 13 | #include <errno.h>
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| 14 | #include <string.h>
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| 15 | #include <sys/swap.h>
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| 16 |
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| 17 |
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| 18 | static int swap_enable_disable(const char *device)
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| 19 | {
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| 20 | int status;
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| 21 | struct stat st;
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| 22 |
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| 23 | xstat(device, &st);
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| 24 |
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| 25 | /* test for holes */
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| 26 | if (S_ISREG(st.st_mode))
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| 27 | if (st.st_blocks * 512 < st.st_size)
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| 28 | bb_error_msg_and_die("swap file has holes");
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| 29 |
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| 30 | if (bb_applet_name[5] == 'n')
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| 31 | status = swapon(device, 0);
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| 32 | else
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| 33 | status = swapoff(device);
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| 34 |
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| 35 | if (status != 0) {
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| 36 | bb_perror_msg("%s", device);
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| 37 | return 1;
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| 38 | }
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| 39 |
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| 40 | return 0;
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| 41 | }
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| 42 |
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| 43 | static int do_em_all(void)
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| 44 | {
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| 45 | struct mntent *m;
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| 46 | FILE *f;
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| 47 | int err;
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| 48 |
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| 49 | f = setmntent("/etc/fstab", "r");
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| 50 | if (f == NULL)
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| 51 | bb_perror_msg_and_die("/etc/fstab");
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| 52 |
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| 53 | err = 0;
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| 54 | while ((m = getmntent(f)) != NULL)
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| 55 | if (strcmp(m->mnt_type, MNTTYPE_SWAP) == 0)
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| 56 | err += swap_enable_disable(m->mnt_fsname);
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| 57 |
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| 58 | endmntent(f);
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| 59 |
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| 60 | return err;
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| 61 | }
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| 62 |
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| 63 | #define DO_ALL 0x01
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| 64 |
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| 65 | int swap_on_off_main(int argc, char **argv)
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| 66 | {
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| 67 | int ret;
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| 68 |
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| 69 | if (argc == 1)
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| 70 | bb_show_usage();
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| 71 |
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| 72 | ret = bb_getopt_ulflags(argc, argv, "a");
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| 73 | if (ret & DO_ALL)
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| 74 | return do_em_all();
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| 75 |
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| 76 | ret = 0;
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| 77 | while (*++argv)
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| 78 | ret += swap_enable_disable(*argv);
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| 79 | return ret;
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| 80 | }
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