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| author | Karel Zak | 2011-11-11 15:13:33 +0100 |
|---|---|---|
| committer | Karel Zak | 2011-11-11 15:13:33 +0100 |
| commit | 3c83b3b22f33fc7b17b504158e4a4db7b567bbe8 (patch) | |
| tree | 05472f07239090d1884c67c923ebbb6e4067d3d6 /libblkid/src/probe.c | |
| parent | mkswap: wipe all old signatures (diff) | |
| download | kernel-qcow2-util-linux-3c83b3b22f33fc7b17b504158e4a4db7b567bbe8.tar.gz kernel-qcow2-util-linux-3c83b3b22f33fc7b17b504158e4a4db7b567bbe8.tar.xz kernel-qcow2-util-linux-3c83b3b22f33fc7b17b504158e4a4db7b567bbe8.zip | |
libblkid: add BLKID_PARTS_MAGIC
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'libblkid/src/probe.c')
| -rw-r--r-- | libblkid/src/probe.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/libblkid/src/probe.c b/libblkid/src/probe.c index af1111943..49b042095 100644 --- a/libblkid/src/probe.c +++ b/libblkid/src/probe.c @@ -1213,6 +1213,39 @@ int blkid_probe_sprintf_value(blkid_probe pr, const char *name, return rc; } +int blkid_probe_set_magic(blkid_probe pr, blkid_loff_t offset, + size_t len, unsigned char *magic) +{ + int rc = 0; + struct blkid_chain *chn = blkid_probe_get_chain(pr); + + if (!chn || !magic || !len || chn->binary) + return 0; + + switch (chn->driver->id) { + case BLKID_CHAIN_SUBLKS: + if (!(chn->flags & BLKID_SUBLKS_MAGIC)) + return 0; + rc = blkid_probe_set_value(pr, "SBMAGIC", magic, len); + if (!rc) + rc = blkid_probe_sprintf_value(pr, + "SBMAGIC_OFFSET", "%llu", offset); + break; + case BLKID_CHAIN_PARTS: + if (!(chn->flags & BLKID_PARTS_MAGIC)) + return 0; + rc = blkid_probe_set_value(pr, "PTMAGIC", magic, len); + if (!rc) + rc = blkid_probe_sprintf_value(pr, + "PTMAGIC_OFFSET", "%llu", offset); + break; + default: + break; + } + + return rc; +} + /** * blkid_probe_get_devno: * @pr: probe |