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mount: fix mtab support (but it is still rather buggy)

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This commit is contained in:
Denis Vlasenko
2006-09-14 13:19:19 +00:00
parent 85c6de71bf
commit 727ef94447
1 changed files with 27 additions and 13 deletions
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40
util-linux/mount.c
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@@ -223,6 +223,8 @@ int mount_it_now(struct mntent *mp, int vfsflags, char *filteropts)
* mtab file by hand, add the new entry to it now. */
if(ENABLE_FEATURE_MTAB_SUPPORT && useMtab && !rc) {
char dirbuf[PATH_MAX];
char srcbuf[PATH_MAX];
FILE *mountTable = setmntent(bb_path_mtab_file, "a+");
int i;
@@ -232,27 +234,39 @@ int mount_it_now(struct mntent *mp, int vfsflags, char *filteropts)
// Add vfs string flags
for(i=0; mount_options[i].flags != MS_REMOUNT; i++)
if (mount_options[i].flags > 0)
if (mount_options[i].flags > 0 && (mount_options[i].flags&vfsflags))
append_mount_options(&(mp->mnt_opts), mount_options[i].name);
// Remove trailing / (if any) from directory we mounted on
i = strlen(mp->mnt_dir);
if(i>1 && mp->mnt_dir[i-1] == '/') mp->mnt_dir[i-1] = 0;
i = strlen(mp->mnt_dir) - 1;
if(i > 0 && mp->mnt_dir[i] == '/') mp->mnt_dir[i] = 0;
// Add full pathnames as needed
if (mp->mnt_dir[0] != '/') {
getcwd(dirbuf, sizeof(dirbuf));
i = strlen(dirbuf);
/* strcat() would be unsafe here */
snprintf(dirbuf+i, sizeof(dirbuf)-i, "/%s", mp->mnt_dir);
mp->mnt_dir = dirbuf;
}
if (!mp->mnt_type || !*mp->mnt_type) { /* bind mount */
if (mp->mnt_fsname[0] != '/') {
getcwd(srcbuf, sizeof(srcbuf));
i = strlen(srcbuf);
snprintf(srcbuf+i, sizeof(srcbuf)-i, "/%s",
mp->mnt_fsname);
mp->mnt_fsname = srcbuf;
}
mp->mnt_type = "none";
mp->mnt_freq = mp->mnt_passno = 0;
}
// Write and close.
if(!mp->mnt_type || !*mp->mnt_type) mp->mnt_type="--bind";
// addmntent(mountTable, mp);
if(0) bb_error_msg("buggy: addmntent(fsname='%s' dir='%s' type='%s' opts='%s')",
mp->mnt_fsname,
mp->mnt_dir,
mp->mnt_type,
mp->mnt_opts
);
addmntent(mountTable, mp);
endmntent(mountTable);
if (ENABLE_FEATURE_CLEAN_UP)
if(strcmp(mp->mnt_type,"--bind")) mp->mnt_type = 0;
}
return rc;