From cfe5e3905201349e9cf3f95d52ff4bd100bde37d Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 14 Apr 2024 21:10:49 +0200 Subject: Adding upstream version 2.39.3. Signed-off-by: Daniel Baumann --- libblkid/src/partitions/sgi.c | 87 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 87 insertions(+) create mode 100644 libblkid/src/partitions/sgi.c (limited to 'libblkid/src/partitions/sgi.c') diff --git a/libblkid/src/partitions/sgi.c b/libblkid/src/partitions/sgi.c new file mode 100644 index 0000000..d4f81bb --- /dev/null +++ b/libblkid/src/partitions/sgi.c @@ -0,0 +1,87 @@ +/* + * sgi partition parsing code + * + * Copyright (C) 2009 Karel Zak + * + * This file may be redistributed under the terms of the + * GNU Lesser General Public License. + * + */ +#include +#include +#include +#include + +#include "partitions.h" +#include "pt-sgi.h" + +static int probe_sgi_pt(blkid_probe pr, + const struct blkid_idmag *mag __attribute__((__unused__))) +{ + struct sgi_disklabel *l; + struct sgi_partition *p; + blkid_parttable tab = NULL; + blkid_partlist ls; + int i; + + l = (struct sgi_disklabel *) blkid_probe_get_sector(pr, 0); + if (!l) { + if (errno) + return -errno; + goto nothing; + } + + if (!blkid_probe_verify_csum(pr, sgi_pt_checksum(l), 0)) { + DBG(LOWPROBE, ul_debug( + "detected corrupted sgi disk label -- ignore")); + goto nothing; + } + + if (blkid_partitions_need_typeonly(pr)) + /* caller does not ask for details about partitions */ + return BLKID_PROBE_OK; + + ls = blkid_probe_get_partlist(pr); + if (!ls) + goto nothing; + + tab = blkid_partlist_new_parttable(ls, "sgi", 0); + if (!tab) + goto err; + + for(i = 0, p = &l->partitions[0]; i < SGI_MAXPARTITIONS; i++, p++) { + uint32_t size = be32_to_cpu(p->num_blocks); + uint32_t start = be32_to_cpu(p->first_block); + uint32_t type = be32_to_cpu(p->type); + blkid_partition par; + + if (!size) { + blkid_partlist_increment_partno(ls); + continue; + } + par = blkid_partlist_add_partition(ls, tab, start, size); + if (!par) + goto err; + + blkid_partition_set_type(par, type); + } + + return BLKID_PROBE_OK; + +nothing: + return BLKID_PROBE_NONE; +err: + return -ENOMEM; +} + +const struct blkid_idinfo sgi_pt_idinfo = +{ + .name = "sgi", + .probefunc = probe_sgi_pt, + .magics = + { + { .magic = "\x0B\xE5\xA9\x41", .len = 4 }, + { NULL } + } +}; + -- cgit v1.2.3