ubase

suckless linux base utils
git clone git://git.2f30.org/ubase.git
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commit 92c339065773106da4c779818fdb1bf14c827d4b
parent 7f7189f54ffab105a294f511a3732f434a773ef8
Author: sin <sin@2f30.org>
Date:   Mon Aug 12 12:32:34 +0100

Add mount(8)

Diffstat:
Makefile | 1+
mount.c | 123+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 124 insertions(+), 0 deletions(-)
diff --git a/Makefile b/Makefile @@ -23,6 +23,7 @@ SRC += \ insmod.c \ lsmod.c \ mkswap.c \ + mount.c \ reboot.c \ rmmod.c \ swapoff.c \ diff --git a/mount.c b/mount.c @@ -0,0 +1,123 @@ +/* See LICENSE file for copyright and license details. */ +#include <sys/mount.h> +#include <unistd.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include "ubase.h" +#include "util.h" + +struct { + const char *opt; + const char *notopt; + unsigned long v; +} optnames[] = { + { "remount", NULL, MS_REMOUNT }, + { "ro", "rw", MS_RDONLY }, + { "sync", "async", MS_SYNCHRONOUS }, + { "dirsync", NULL, MS_DIRSYNC }, + { "nodev", "dev", MS_NODEV }, + { "noatime", "atime", MS_NOATIME }, + { "nodiratime", "diratime", MS_NODIRATIME }, + { "noexec", "exec", MS_NOEXEC }, + { "nosuid", "suid", MS_NOSUID }, + { "mand", "nomand", MS_MANDLOCK }, + { "relatime", "norelatime", MS_RELATIME }, + { NULL, NULL, 0 } +}; + +static void +usage(void) +{ + eprintf("usage: %s [-BMRd] [-t fstype] [-o options] device dir\n", + argv0); +} + +int +main(int argc, char *argv[]) +{ + int i; + unsigned long flags = 0; + char *types = NULL, *opt = NULL, *p; + const char *source; + const char *target; + int validopt; + void *data = NULL; + struct mntinfo *minfo = NULL; + int siz; + + ARGBEGIN { + case 'B': + flags |= MS_BIND; + break; + case 'M': + flags |= MS_MOVE; + break; + case 'R': + flags |= MS_REC; + break; + case 'd': + data = EARGF(usage()); + break; + case 'o': + opt = EARGF(usage()); + p = strtok(opt, ","); + while (p) { + validopt = 0; + for (i = 0; optnames[i].v; i++) { + if (optnames[i].opt) { + if (!strcmp(p, optnames[i].opt)) { + flags |= optnames[i].v; + validopt = 1; + break; + } + } + if (optnames[i].notopt) { + if (!strcmp(p, optnames[i].notopt)) { + flags &= ~optnames[i].v; + validopt = 1; + break; + } + } + } + if (!validopt) + break; + p = strtok(NULL, ","); + } + if (!validopt) + enprintf(1, "unknown option: %s\n", p); + break; + case 't': + types = EARGF(usage()); + break; + default: + usage(); + } ARGEND; + + if (argc < 1) + usage(); + + source = argv[0]; + target = argv[1]; + + if (!target) { + target = source; + source = NULL; + siz = grabmntinfo(&minfo); + if (!siz) + eprintf("grabmntinfo:"); + for (i = 0; i < siz; i++) + if (!strcmp(minfo[i].mntdir, target)) + source = minfo[i].fsname; + if (!source) + enprintf(1, "can't find %s mountpoint\n", + target); + } + + if (mount(source, target, types, flags, data) < 0) + eprintf("mount:"); + + free(minfo); + + return 0; +}