[libvirt] [PATCH] Fix enumeration of partitions in disks with a trailing digit in path

Disks with a trailing digit in their path (eg /dev/loop0 or /dev/dm0) have an extra 'p' appended before the partition number (eg, to form /dev/loop0p1 not /dev/loop01). Fix the partition lookup to append this extra 'p' when required * src/storage/parthelper.c: Add a 'p' before partition number if required --- src/storage/parthelper.c | 15 +++++++++++---- 1 files changed, 11 insertions(+), 4 deletions(-) diff --git a/src/storage/parthelper.c b/src/storage/parthelper.c index 5626cd2..28d88c9 100644 --- a/src/storage/parthelper.c +++ b/src/storage/parthelper.c @@ -36,6 +36,8 @@ #include <stdio.h> #include <string.h> +#include "c-ctype.h" + /* we don't need to include the full internal.h just for this */ #define STREQ(a,b) (strcmp(a,b) == 0) @@ -56,6 +58,8 @@ int main(int argc, char **argv) PedDisk *disk; PedPartition *part; int cmd = DISK_LAYOUT; + const char *path; + const char *partsep; if (argc == 3 && STREQ(argv[2], "-g")) { cmd = DISK_GEOMETRY; @@ -64,8 +68,11 @@ int main(int argc, char **argv) return 1; } - if ((dev = ped_device_get(argv[1])) == NULL) { - fprintf(stderr, "unable to access device %s\n", argv[1]); + path = argv[1]; + partsep = c_isdigit(path[strlen(path)-1]) ? "p" : ""; + + if ((dev = ped_device_get(path)) == NULL) { + fprintf(stderr, "unable to access device %s\n", path); return 2; } @@ -117,8 +124,8 @@ int main(int argc, char **argv) * in bytes, not the last sector number */ if (part->num != -1) { - printf("%s%d%c%s%c%s%c%llu%c%llu%c%llu%c", - part->geom.dev->path, + printf("%s%s%d%c%s%c%s%c%llu%c%llu%c%llu%c", + path, partsep, part->num, '\0', type, '\0', content, '\0', -- 1.6.5.2