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Xin LI 57d848483e When an underlying ioctl(2) handler returns an error, our ioctl(2) 
interface considers that it hits a fatal error, and will not copyout
the request structure back for _IOW and _IOWR ioctls, keeping them
untouched.

The previous implementation of the SIOCGIFDESCR ioctl intends to
feed the buffer length back to userland.  However, if we return
an error, the feedback would be defeated and ifconfig(8) would
trap into an infinite loop.

This commit changes SIOCGIFDESCR to set buffer field to NULL to
indicate the previous ENAMETOOLONG case.

Reported by:	bschmidt
MFC after:	2 weeks
2010-04-14 22:02:19 +00:00
..
adjkerntz Raise WARNS for various tools where possible. 2010-01-17 21:56:27 +00:00
atacontrol Improve output for controllers that doesn't report SATA speed. 2010-02-22 10:45:40 +00:00
atm Switch the default WARNS level for sbin/ to 6. 2009-10-19 16:00:24 +00:00
badsect Switch the default WARNS level for sbin/ to 6. 2009-10-19 16:00:24 +00:00
bsdlabel Switch the default WARNS level for sbin/ to 6. 2009-10-19 16:00:24 +00:00
camcontrol Improve output for controllers that doesn't report SATA speed. 2010-02-22 10:45:40 +00:00
ccdconfig Switch the default WARNS level for sbin/ to 6. 2009-10-19 16:00:24 +00:00
clri Switch the default WARNS level for sbin/ to 6. 2009-10-19 16:00:24 +00:00
comcontrol ANSIfy almost all applications that use WARNS=6. 2009-12-29 22:53:27 +00:00
conscontrol Switch the default WARNS level for sbin/ to 6. 2009-10-19 16:00:24 +00:00
ddb Always assign WARNS using ?= 2010-03-02 16:58:04 +00:00
devd Bump WARNS where possible. 2010-02-15 14:07:40 +00:00
devfs Document the interaction between /etc/devfs.conf and 2010-02-21 10:29:45 +00:00
dhclient Make dhclient use bootpc (68) as the source port for unicast DHCPREQUEST 2009-10-21 23:50:35 +00:00
dmesg Switch the default WARNS level for sbin/ to 6. 2009-10-19 16:00:24 +00:00
dump Plug two memory leaks in error case. 2010-02-03 23:56:12 +00:00
dumpfs Print leading zeros in the UFS2 FSID. 2010-01-06 14:01:28 +00:00
dumpon Switch the default WARNS level for sbin/ to 6. 2009-10-19 16:00:24 +00:00
fdisk - Back out the previous change in order to maintain compatibility. 2009-06-17 06:41:10 +00:00
fdisk_pc98 Use the common PC98_SID_ACTIVE define instead of a local define. 2009-03-19 12:31:59 +00:00
ffsinfo Bump WARNS where possible. 2010-02-15 14:07:40 +00:00
fsck Fix minor resource leak in a function which was introduced by changing an 2009-11-20 15:27:00 +00:00
fsck_ffs Cast 64-bit quantity to intptr_t rather than int so as to work properly 2010-01-11 23:33:30 +00:00
fsck_msdosfs Rename fields to match better the msdosfs headers. This work is still 2010-02-14 12:31:28 +00:00
fsdb Update after function renames. 2006-10-31 22:07:29 +00:00
fsirand
gbde Bump WARNS where possible. 2010-02-15 14:07:40 +00:00
geom fix copyright format, as requested by Joel Dahl 2010-04-13 09:56:17 +00:00
ggate Please welcome HAST - Highly Avalable Storage. 2010-02-18 23:16:19 +00:00
growfs When growing a UFS1 filesystem, we need to initialise all inodes in any new 2010-02-13 16:22:08 +00:00
gvinum - Make function of finding an available drive name a macro. 2010-03-03 21:27:54 +00:00
hastctl Remove redundant WARNS?=6 overrides and inherit the WARNS setting from 2010-03-02 18:44:08 +00:00
hastd Don't hold connection lock when doing reconnects as it makes I/Os wait for 2010-03-27 16:35:07 +00:00
ifconfig When an underlying ioctl(2) handler returns an error, our ioctl(2) 2010-04-14 22:02:19 +00:00
init Remove stale inclusion of <ulog.h>. 2010-01-27 20:32:58 +00:00
ipf Always assign WARNS using ?= 2010-03-02 16:58:04 +00:00
ipfw fix a buffer overflow with large (100k+) number of input lines. 2010-04-12 08:27:53 +00:00
iscontrol mdoc: order prologue macros consistently by Dd/Dt/Os 2010-04-14 19:08:06 +00:00
kldconfig Raise WARNS for various tools where possible. 2010-01-17 21:56:27 +00:00
kldload Raise WARNS for various tools where possible. 2010-01-17 21:56:27 +00:00
kldstat Raise WARNS for various tools where possible. 2010-01-17 21:56:27 +00:00
kldunload Switch the default WARNS level for sbin/ to 6. 2009-10-19 16:00:24 +00:00
ldconfig ANSIfy ldconfig and the aout bits it still uses from rtld-aout. 2009-12-29 21:07:17 +00:00
mca The sequence number is now a node under which the MCA records are 2010-04-13 22:27:39 +00:00
md5 Switch the default WARNS level for sbin/ to 6. 2009-10-19 16:00:24 +00:00
mdconfig Make mdconfig(8) WARNS=6 clean: 2010-01-22 08:51:58 +00:00
mdmfs Switch the default WARNS level for sbin/ to 6. 2009-10-19 16:00:24 +00:00
mknod Bump WARNS where possible. 2010-02-15 14:07:40 +00:00
mksnap_ffs Switch the default WARNS level for sbin/ to 6. 2009-10-19 16:00:24 +00:00
mount As statfs.f_flags are uint64_t the local variables should be as well. 2010-03-07 16:45:18 +00:00
mount_autofs Switch the default WARNS level for sbin/ to 6. 2009-10-19 16:00:24 +00:00
mount_cd9660 Fix minor memory leak in a function. 2009-11-20 15:28:38 +00:00
mount_ext2fs Switch the default WARNS level for sbin/ to 6. 2009-10-19 16:00:24 +00:00
mount_hpfs mount_hpfs(8): make WARNS=6 clean 2010-02-27 10:14:59 +00:00
mount_msdosfs Remove reference to the bug in FreeBSD 2.0. 2010-01-02 17:45:53 +00:00
mount_nfs Introduce '[ipaddr]:path' notation. 2010-02-04 15:17:49 +00:00
mount_ntfs mount_ntfs(8): make WARNS=6 clean 2010-02-27 10:16:14 +00:00
mount_nullfs ANSIfy almost all applications that use WARNS=6. 2009-12-29 22:53:27 +00:00
mount_reiserfs Switch the default WARNS level for sbin/ to 6. 2009-10-19 16:00:24 +00:00
mount_std Bump WARNS where possible. 2010-02-15 14:07:40 +00:00
mount_udf style.Makefile(5): Remove -Wall from CFLAGS. 2006-07-17 20:53:25 +00:00
mount_unionfs Switch the default WARNS level for sbin/ to 6. 2009-10-19 16:00:24 +00:00
natd Raise WARNS for various tools where possible. 2010-01-17 21:56:27 +00:00
newfs Fix "Empty input line" mdoc warning. 2010-03-10 00:47:09 +00:00
newfs_msdos Rename variables to match msdosfs headers. 2010-02-14 12:25:39 +00:00
nfsiod - Display current settings when run without options. 2009-12-26 08:36:02 +00:00
nos-tun nos-tun(8): make WARNS=3 clean 2010-03-10 18:51:13 +00:00
pfctl Switch the default WARNS level for sbin/ to 6. 2009-10-19 16:00:24 +00:00
pflogd Let pflogd's Makefile just use WARNS instead of changing CFLAGS. 2009-04-23 09:11:37 +00:00
ping - improve readability 2009-01-11 22:36:45 +00:00
ping6 Implement -R support, similar to ping(8)'s -A. 2008-08-27 15:01:23 +00:00
quotacheck Fix several typos in macros or macro misusage. 2010-03-12 10:01:06 +00:00
rcorder ANSIfy almost all applications that use WARNS=6. 2009-12-29 22:53:27 +00:00
reboot Remove stale references to utmp(5) and its corresponding filenames. 2010-01-21 17:25:12 +00:00
recoverdisk Switch the default WARNS level for sbin/ to 6. 2009-10-19 16:00:24 +00:00
restore Fix common misspelling of hierarchy 2010-02-20 10:19:19 +00:00
route route(8): make WARNS=3 clean 2010-02-27 10:18:33 +00:00
routed routed(8)/rtquery(8) bump/demote to WARNS=3 for all archs 2010-02-27 10:17:27 +00:00
rtsol rtsol(8)/rtsold(8): make WARNS=3 clean 2010-02-27 10:19:39 +00:00
savecore Switch the default WARNS level for sbin/ to 6. 2009-10-19 16:00:24 +00:00
sconfig Switch the default WARNS level for sbin/ to 6. 2009-10-19 16:00:24 +00:00
setkey o Fix typo. 2010-03-26 05:35:25 +00:00
shutdown Add missing `void' for functions without arguments. 2009-12-29 08:49:43 +00:00
spppcontrol mdoc: order prologue macros consistently by Dd/Dt/Os 2010-04-14 19:08:06 +00:00
sunlabel Bump WARNS where possible. 2010-02-15 14:07:40 +00:00
swapon Raise WARNS for various tools where possible. 2010-01-17 21:56:27 +00:00
sysctl Free the memory allocated via strdup. 2010-03-13 11:08:57 +00:00
tunefs Quiet spurious warnings. 2010-02-11 06:33:35 +00:00
umount Introduce '[ipaddr]:path' notation. 2010-02-04 15:17:49 +00:00
Makefile Please welcome HAST - Highly Avalable Storage. 2010-02-18 23:16:19 +00:00
Makefile.inc Switch the default WARNS level for sbin/ to 6. 2009-10-19 16:00:24 +00:00