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Date: Tue, 10 Dec 2013 17:19:48 -0800
From: "Darrick J. Wong" <darrick.wong@...cle.com>
To: tytso@....edu, darrick.wong@...cle.com
Cc: linux-ext4@...r.kernel.org
Subject: [PATCH 13/74] debugfs: handle 64bit block numbers
debugfs should use strtoull wrappers for reading block numbers from
the command line. "unsigned long" isn't wide enough to handle block
numbers on 32bit platforms.
Signed-off-by: Darrick J. Wong <darrick.wong@...cle.com>
---
debugfs/debugfs.c | 33 ++++++++++++++++++++++-----------
debugfs/extent_inode.c | 22 +++++++++-------------
debugfs/util.c | 2 +-
3 files changed, 32 insertions(+), 25 deletions(-)
diff --git a/debugfs/debugfs.c b/debugfs/debugfs.c
index c5f8a1f..578d577 100644
--- a/debugfs/debugfs.c
+++ b/debugfs/debugfs.c
@@ -181,8 +181,7 @@ void do_open_filesys(int argc, char **argv)
return;
break;
case 's':
- superblock = parse_ulong(optarg, argv[0],
- "superblock number", &err);
+ err = strtoblk(argv[0], optarg, &superblock);
if (err)
return;
break;
@@ -278,14 +277,17 @@ void do_init_filesys(int argc, char **argv)
struct ext2_super_block param;
errcode_t retval;
int err;
+ blk64_t blocks;
if (common_args_process(argc, argv, 3, 3, "initialize",
"<device> <blocks>", CHECK_FS_NOTOPEN))
return;
memset(¶m, 0, sizeof(struct ext2_super_block));
- ext2fs_blocks_count_set(¶m, parse_ulong(argv[2], argv[0],
- "blocks count", &err));
+ err = strtoblk(argv[0], argv[2], &blocks);
+ if (err)
+ return;
+ ext2fs_blocks_count_set(¶m, blocks);
if (err)
return;
retval = ext2fs_initialize(argv[1], 0, ¶m,
@@ -2110,7 +2112,9 @@ void do_bmap(int argc, char *argv[])
ino = string_to_inode(argv[1]);
if (!ino)
return;
- blk = parse_ulong(argv[2], argv[0], "logical_block", &err);
+ err = strtoblk(argv[0], argv[2], &blk);
+ if (err)
+ return;
errcode = ext2fs_bmap2(current_fs, ino, 0, 0, 0, blk, 0, &pblk);
if (errcode) {
@@ -2255,10 +2259,14 @@ void do_punch(int argc, char *argv[])
ino = string_to_inode(argv[1]);
if (!ino)
return;
- start = parse_ulong(argv[2], argv[0], "logical_block", &err);
- if (argc == 4)
- end = parse_ulong(argv[3], argv[0], "logical_block", &err);
- else
+ err = strtoblk(argv[0], argv[2], &start);
+ if (err)
+ return;
+ if (argc == 4) {
+ err = strtoblk(argv[0], argv[3], &end);
+ if (err)
+ return;
+ } else
end = ~0;
errcode = ext2fs_punch(current_fs, ino, 0, 0, start, end);
@@ -2470,8 +2478,11 @@ int main(int argc, char **argv)
"block size", 0);
break;
case 's':
- superblock = parse_ulong(optarg, argv[0],
- "superblock number", 0);
+ retval = strtoblk(argv[0], optarg, &superblock);
+ if (retval) {
+ com_err(argv[0], retval, 0, debug_prog_name);
+ return 1;
+ }
break;
case 'c':
catastrophic = 1;
diff --git a/debugfs/extent_inode.c b/debugfs/extent_inode.c
index 0bbc4c5..75e328c 100644
--- a/debugfs/extent_inode.c
+++ b/debugfs/extent_inode.c
@@ -264,7 +264,7 @@ void do_replace_node(int argc, char *argv[])
return;
}
- extent.e_lblk = parse_ulong(argv[1], argv[0], "logical block", &err);
+ err = strtoblk(argv[0], argv[1], &extent.e_lblk);
if (err)
return;
@@ -272,7 +272,7 @@ void do_replace_node(int argc, char *argv[])
if (err)
return;
- extent.e_pblk = parse_ulong(argv[3], argv[0], "logical block", &err);
+ err = strtoblk(argv[0], argv[3], &extent.e_pblk);
if (err)
return;
@@ -338,8 +338,7 @@ void do_insert_node(int argc, char *argv[])
return;
}
- extent.e_lblk = parse_ulong(argv[1], cmd,
- "logical block", &err);
+ err = strtoblk(cmd, argv[1], &extent.e_lblk);
if (err)
return;
@@ -348,8 +347,7 @@ void do_insert_node(int argc, char *argv[])
if (err)
return;
- extent.e_pblk = parse_ulong(argv[3], cmd,
- "pysical block", &err);
+ err = strtoblk(cmd, argv[3], &extent.e_pblk);
if (err)
return;
@@ -366,8 +364,8 @@ void do_set_bmap(int argc, char **argv)
const char *usage = "[--uninit] <lblk> <pblk>";
struct ext2fs_extent extent;
errcode_t retval;
- blk_t logical;
- blk_t physical;
+ blk64_t logical;
+ blk64_t physical;
char *cmd = argv[0];
int flags = 0;
int err;
@@ -387,18 +385,16 @@ void do_set_bmap(int argc, char **argv)
return;
}
- logical = parse_ulong(argv[1], cmd,
- "logical block", &err);
+ err = strtoblk(cmd, argv[1], &logical);
if (err)
return;
- physical = parse_ulong(argv[2], cmd,
- "physical block", &err);
+ err = strtoblk(cmd, argv[2], &physical);
if (err)
return;
retval = ext2fs_extent_set_bmap(current_handle, logical,
- (blk64_t) physical, flags);
+ physical, flags);
if (retval) {
com_err(cmd, retval, 0);
return;
diff --git a/debugfs/util.c b/debugfs/util.c
index cf3a6c6..09088e0 100644
--- a/debugfs/util.c
+++ b/debugfs/util.c
@@ -377,7 +377,7 @@ int common_block_args_process(int argc, char *argv[],
}
if (argc > 2) {
- *count = parse_ulong(argv[2], argv[0], "count", &err);
+ err = strtoblk(argv[0], argv[2], count);
if (err)
return 1;
}
--
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