diff options
Diffstat (limited to 'src/shared/fstab-util.c')
| -rw-r--r-- | src/shared/fstab-util.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/src/shared/fstab-util.c b/src/shared/fstab-util.c index 20fb0f5a06..77faa7bc35 100644 --- a/src/shared/fstab-util.c +++ b/src/shared/fstab-util.c @@ -19,6 +19,7 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>. ***/ +#include "device-nodes.h" #include "fstab-util.h" #include "parse-util.h" #include "path-util.h" @@ -196,3 +197,60 @@ int fstab_find_pri(const char *options, int *ret) { *ret = (int) pri; return 1; } + +static char *unquote(const char *s, const char* quotes) { + size_t l; + assert(s); + + /* This is rather stupid, simply removes the heading and + * trailing quotes if there is one. Doesn't care about + * escaping or anything. + * + * DON'T USE THIS FOR NEW CODE ANYMORE!*/ + + l = strlen(s); + if (l < 2) + return strdup(s); + + if (strchr(quotes, s[0]) && s[l-1] == s[0]) + return strndup(s+1, l-2); + + return strdup(s); +} + +static char *tag_to_udev_node(const char *tagvalue, const char *by) { + _cleanup_free_ char *t = NULL, *u = NULL; + size_t enc_len; + + u = unquote(tagvalue, QUOTES); + if (!u) + return NULL; + + enc_len = strlen(u) * 4 + 1; + t = new(char, enc_len); + if (!t) + return NULL; + + if (encode_devnode_name(u, t, enc_len) < 0) + return NULL; + + return strjoin("/dev/disk/by-", by, "/", t, NULL); +} + +char *fstab_node_to_udev_node(const char *p) { + assert(p); + + if (startswith(p, "LABEL=")) + return tag_to_udev_node(p+6, "label"); + + if (startswith(p, "UUID=")) + return tag_to_udev_node(p+5, "uuid"); + + if (startswith(p, "PARTUUID=")) + return tag_to_udev_node(p+9, "partuuid"); + + if (startswith(p, "PARTLABEL=")) + return tag_to_udev_node(p+10, "partlabel"); + + return strdup(p); +} |