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Endless loop in zpool_do_remove() on platforms with unsigned char

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On systems where "char" is an unsigned type the value returned by
getopt() will never be negative (-1), leading to an endless loop:
this issue prevents both 'zpool remove' and 'zstreamdump' for
working on some systems.

Reviewed-by: Igor Kozhukhov <igor@dilos.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Chris Dunlop <chris@onthe.net.au>
Signed-off-by: loli10K <ezomori.nozomu@gmail.com>
Closes #8789
This commit is contained in:
loli10K 2019-05-28 20:14:58 +02:00 committed by Brian Behlendorf
parent 841a7a98fc
commit 0869b74a1e
3 changed files with 4 additions and 4 deletions
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4
cmd/zfs/zfs_main.c
View File

@ -2239,7 +2239,7 @@ zfs_do_upgrade(int argc, char **argv)
boolean_t showversions = B_FALSE;
int ret = 0;
upgrade_cbdata_t cb = { 0 };
signed char c;
int c;
int flags = ZFS_ITER_ARGS_CAN_BE_PATHS;
/* check options */
@ -3933,7 +3933,7 @@ static int
zfs_do_snapshot(int argc, char **argv)
{
int ret = 0;
signed char c;
int c;
nvlist_t *props;
snap_cbdata_t sd = { 0 };
boolean_t multiple_snaps = B_FALSE;

2
cmd/zpool/zpool_main.c
View File

@ -973,7 +973,7 @@ zpool_do_remove(int argc, char **argv)
int i, ret = 0;
zpool_handle_t *zhp = NULL;
boolean_t stop = B_FALSE;
char c;
int c;
boolean_t noop = B_FALSE;
boolean_t parsable = B_FALSE;

2
cmd/zstreamdump/zstreamdump.c
View File

@ -237,7 +237,7 @@ main(int argc, char *argv[])
struct drr_write_embedded *drrwe = &thedrr.drr_u.drr_write_embedded;
struct drr_object_range *drror = &thedrr.drr_u.drr_object_range;
struct drr_checksum *drrc = &thedrr.drr_u.drr_checksum;
char c;
int c;
boolean_t verbose = B_FALSE;
boolean_t very_verbose = B_FALSE;
boolean_t first = B_TRUE;