X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=extras%2Fvolume_id%2Flib%2Fvolume_id.c;h=bf009c72030383b8bcbcc47ec906c3102121914b;hp=bcdbe2feaaf1129a2b053ea1a9ae2a8d5408b2e8;hb=e7ea9c50e8eaab772206268739db2d59ba7bd709;hpb=e55a73abb07e6949ebbf17fa08a3ddeaddbbc41f diff --git a/extras/volume_id/lib/volume_id.c b/extras/volume_id/lib/volume_id.c index bcdbe2fea..bf009c720 100644 --- a/extras/volume_id/lib/volume_id.c +++ b/extras/volume_id/lib/volume_id.c @@ -1,7 +1,7 @@ /* * volume_id - reads volume label and uuid * - * Copyright (C) 2005 Kay Sievers + * Copyright (C) 2005-2007 Kay Sievers * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the @@ -36,6 +36,103 @@ static void default_log(int priority, const char *file, int line, const char *fo volume_id_log_fn_t volume_id_log_fn = default_log; +int volume_id_get_label(struct volume_id *id, const char **label) +{ + if (id == NULL) + return -EINVAL; + if (label == NULL) + return -EINVAL; + if (id->usage_id == VOLUME_ID_UNUSED) + return 0; + + *label = id->label; + return 1; +} + +int volume_id_get_label_raw(struct volume_id *id, const uint8_t **label, size_t *len) +{ + if (id == NULL) + return -EINVAL; + if (label == NULL) + return -EINVAL; + if (len == NULL) + return -EINVAL; + if (id->usage_id == VOLUME_ID_UNUSED) + return 0; + + *label = id->label_raw; + *len = id->label_raw_len; + return 1; +} + +int volume_id_get_uuid(struct volume_id *id, const char **uuid) +{ + if (id == NULL) + return -EINVAL; + if (uuid == NULL) + return -EINVAL; + if (id->usage_id == VOLUME_ID_UNUSED) + return 0; + + *uuid = id->uuid; + return 1; +} + +int volume_id_get_uuid_raw(struct volume_id *id, const uint8_t **uuid, size_t *len) +{ + if (id == NULL) + return -EINVAL; + if (uuid == NULL) + return -EINVAL; + if (len == NULL) + return -EINVAL; + if (id->usage_id == VOLUME_ID_UNUSED) + return 0; + + *uuid = id->uuid_raw; + *len = id->uuid_raw_len; + return 1; +} + +int volume_id_get_usage(struct volume_id *id, const char **usage) +{ + if (id == NULL) + return -EINVAL; + if (usage == NULL) + return -EINVAL; + if (id->usage_id == VOLUME_ID_UNUSED) + return 0; + + *usage = id->usage; + return 1; +} + +int volume_id_get_type(struct volume_id *id, const char **type) +{ + if (id == NULL) + return -EINVAL; + if (type == NULL) + return -EINVAL; + if (id->usage_id == VOLUME_ID_UNUSED) + return 0; + + *type = id->type; + return 1; +} + +int volume_id_get_type_version(struct volume_id *id, const char **type_version) +{ + if (id == NULL) + return -EINVAL; + if (type_version == NULL) + return -EINVAL; + if (id->usage_id == VOLUME_ID_UNUSED) + return 0; + + *type_version = id->type_version; + return 1; +} + int volume_id_probe_raid(struct volume_id *id, uint64_t off, uint64_t size) { if (id == NULL) @@ -77,13 +174,13 @@ int volume_id_probe_raid(struct volume_id *id, uint64_t off, uint64_t size) goto found; } - if (volume_id_probe_lvm1(id, off) == 0) + if (volume_id_probe_lvm1(id, off, size) == 0) goto found; - if (volume_id_probe_lvm2(id, off) == 0) + if (volume_id_probe_lvm2(id, off, size) == 0) goto found; - if (volume_id_probe_highpoint_37x_raid(id, off) == 0) + if (volume_id_probe_highpoint_37x_raid(id, off, size) == 0) goto found; return -1; @@ -102,79 +199,79 @@ int volume_id_probe_filesystem(struct volume_id *id, uint64_t off, uint64_t size info("probing at offset 0x%llx, size 0x%llx", (unsigned long long) off, (unsigned long long) size); - if (volume_id_probe_luks(id, off) == 0) + if (volume_id_probe_vfat(id, off, size) == 0) goto found; - if (volume_id_probe_vfat(id, off) == 0) - goto found; + /* fill buffer with maximum */ + volume_id_get_buffer(id, 0, SB_BUFFER_SIZE); - if (volume_id_probe_xfs(id, off) == 0) + if (volume_id_probe_linux_swap(id, off, size) == 0) goto found; - /* fill buffer with maximum */ - volume_id_get_buffer(id, 0, SB_BUFFER_SIZE); + if (volume_id_probe_luks(id, off, size) == 0) + goto found; - if (volume_id_probe_linux_swap(id, off) == 0) + if (volume_id_probe_xfs(id, off, size) == 0) goto found; - if (volume_id_probe_ext(id, off) == 0) + if (volume_id_probe_ext(id, off, size) == 0) goto found; - if (volume_id_probe_reiserfs(id, off) == 0) + if (volume_id_probe_reiserfs(id, off, size) == 0) goto found; - if (volume_id_probe_jfs(id, off) == 0) + if (volume_id_probe_jfs(id, off, size) == 0) goto found; - if (volume_id_probe_udf(id, off) == 0) + if (volume_id_probe_udf(id, off, size) == 0) goto found; - if (volume_id_probe_iso9660(id, off) == 0) + if (volume_id_probe_iso9660(id, off, size) == 0) goto found; - if (volume_id_probe_hfs_hfsplus(id, off) == 0) + if (volume_id_probe_hfs_hfsplus(id, off, size) == 0) goto found; - if (volume_id_probe_ufs(id, off) == 0) + if (volume_id_probe_ufs(id, off, size) == 0) goto found; - if (volume_id_probe_ntfs(id, off) == 0) + if (volume_id_probe_ntfs(id, off, size) == 0) goto found; - if (volume_id_probe_cramfs(id, off) == 0) + if (volume_id_probe_cramfs(id, off, size) == 0) goto found; - if (volume_id_probe_romfs(id, off) == 0) + if (volume_id_probe_romfs(id, off, size) == 0) goto found; - if (volume_id_probe_hpfs(id, off) == 0) + if (volume_id_probe_hpfs(id, off, size) == 0) goto found; - if (volume_id_probe_sysv(id, off) == 0) + if (volume_id_probe_sysv(id, off, size) == 0) goto found; - if (volume_id_probe_minix(id, off) == 0) + if (volume_id_probe_minix(id, off, size) == 0) goto found; - if (volume_id_probe_ocfs1(id, off) == 0) + if (volume_id_probe_ocfs1(id, off, size) == 0) goto found; - if (volume_id_probe_ocfs2(id, off) == 0) + if (volume_id_probe_ocfs2(id, off, size) == 0) goto found; - if (volume_id_probe_vxfs(id, off) == 0) + if (volume_id_probe_vxfs(id, off, size) == 0) goto found; - if (volume_id_probe_squashfs(id, off) == 0) + if (volume_id_probe_squashfs(id, off, size) == 0) goto found; - if (volume_id_probe_netware(id, off) == 0) + if (volume_id_probe_netware(id, off, size) == 0) goto found; - if (volume_id_probe_gfs(id, off) == 0) + if (volume_id_probe_gfs(id, off, size) == 0) goto found; - if (volume_id_probe_gfs2(id, off) == 0) + if (volume_id_probe_gfs2(id, off, size) == 0) goto found; return -1;