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Convert mount_ext2fs to a simple program which passes "-o option" to nmount().

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This commit is contained in:
Craig Rodrigues 2007-01-28 00:51:01 +00:00
parent 65e2b8ca1f
commit bfa47a3a5c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=166290
1 changed files with 31 additions and 33 deletions
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64
sbin/mount_ext2fs/mount_ext2fs.c
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@ -54,31 +54,37 @@ static const char rcsid[] =
#include "mntopts.h"
struct mntopt mopts[] = {
MOPT_STDOPTS,
MOPT_ASYNC,
MOPT_FORCE,
MOPT_SYNC,
MOPT_UPDATE,
MOPT_END
};
static void usage(void) __dead2;
static void usage(void);
int
main(argc, argv)
int argc;
char *argv[];
main(int argc, char *argv[])
{
struct iovec iov[6];
int ch, mntflags;
struct iovec *iov;
int ch, iovlen;
char *fs_name, *fspec, mntpath[MAXPATHLEN];
char *fstype;
mntflags = 0;
fstype = strrchr(argv[0], '_');
if (fstype == NULL)
errx(EX_USAGE, "argv[0] must end in _fstype");
else
++fstype;
iov = NULL;
iovlen = 0;
while ((ch = getopt(argc, argv, "o:")) != -1)
switch (ch) {
case 'o':
getmntopts(optarg, mopts, &mntflags, 0);
case 'o': {
char *p = NULL;
char *val = strdup("");
p = strchr(optarg, '=');
if (p != NULL) {
free(val);
*p = '\0';
val = p + 1;
}
build_iovec(&iov, &iovlen, optarg, val, strlen(val)+1);
}
break;
case '?':
default:
@ -100,24 +106,16 @@ main(argc, argv)
(void)checkpath(fs_name, mntpath);
(void)rmslashes(fspec, fspec);
iov[0].iov_base = "fstype";
iov[0].iov_len = sizeof("fstype");
iov[1].iov_base = "ext2fs";
iov[1].iov_len = strlen(iov[1].iov_base) + 1;
iov[2].iov_base = "fspath";
iov[2].iov_len = sizeof("fspath");
iov[3].iov_base = mntpath;
iov[3].iov_len = strlen(mntpath) + 1;
iov[4].iov_base = "from";
iov[4].iov_len = sizeof("from");
iov[5].iov_base = fspec;
iov[5].iov_len = strlen(fspec) + 1;
if (nmount(iov, 6, mntflags) < 0)
build_iovec(&iov, &iovlen, "fstype", fstype, strlen(fstype) + 1);
build_iovec(&iov, &iovlen, "fspath", mntpath, strlen(mntpath) + 1);
build_iovec(&iov, &iovlen, "from", fspec, strlen(fspec) + 1);
if (nmount(iov, iovlen, 0) < 0)
err(EX_OSERR, "%s", fspec);
exit(0);
return (0);
}
void
static void
usage()
{
(void)fprintf(stderr,