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authorLennart Poettering <lennart@poettering.net>2015-10-26 18:43:29 +0100
committerLennart Poettering <lennart@poettering.net>2015-10-27 13:25:55 +0100
commit6550203eb471595e41e27f46e5d0a00a4c0e47bb (patch)
tree313df286e149a2f1d26ecbc609b0cde5cbda5d7d /src/shared/fstab-util.c
parent0d39fa9c69b97a2ceb156053deef69c0866c2b97 (diff)
util-lib: move fstab_node_to_udev_node() to fstab-util.[ch]
Diffstat (limited to 'src/shared/fstab-util.c')
-rw-r--r--src/shared/fstab-util.c58
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);
+}