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-rw-r--r--fdisks/partname.c48
1 files changed, 48 insertions, 0 deletions
diff --git a/fdisks/partname.c b/fdisks/partname.c
new file mode 100644
index 000000000..1671e1920
--- /dev/null
+++ b/fdisks/partname.c
@@ -0,0 +1,48 @@
+#include <ctype.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "blkdev.h"
+#include "pathnames.h"
+#include "common.h"
+#include "c.h"
+
+/*
+ * return partition name - uses static storage unless buf is supplied
+ */
+char *
+partname(char *dev, int pno, int lth) {
+ static char bufp[PATH_MAX];
+ char *p;
+ int w, wp;
+
+ w = strlen(dev);
+ p = "";
+
+ if (isdigit(dev[w-1]))
+ p = "p";
+
+ /* devfs kludge - note: fdisk partition names are not supposed
+ to equal kernel names, so there is no reason to do this */
+ if (strcmp (dev + w - 4, "disc") == 0) {
+ w -= 4;
+ p = "part";
+ }
+
+ /* udev names partitions by appending -partN
+ e.g. ata-SAMSUNG_SV8004H_0357J1FT712448-part1 */
+ if ((strncmp(dev, _PATH_DEV_BYID, strlen(_PATH_DEV_BYID)) == 0) ||
+ strncmp(dev, _PATH_DEV_BYPATH, strlen(_PATH_DEV_BYPATH)) == 0) {
+ p = "-part";
+ }
+
+ wp = strlen(p);
+
+ if (lth) {
+ snprintf(bufp, sizeof(bufp), "%*.*s%s%-2u",
+ lth-wp-2, w, dev, p, pno);
+ } else {
+ snprintf(bufp, sizeof(bufp), "%.*s%s%-2u", w, dev, p, pno);
+ }
+ return bufp;
+}