busybox/miscutils
Bartosz Golaszewski 7ca5c51cc8 i2c-tools: only try /dev/i2c/* if opening /dev/i2c-* fails with ENOENT
Trying to access /dev/i2c/* on every error after opening /dev/i2c-* can
mislead users who e.g. don't have root access. Instead of bailing-out
with "permission denied" we currently print "no such file or directory".

Fix it by trying open("/dev/i2c/%d") only if we got ENOENT.

Upstream i2cdetect tries to get any info it can from /sys and /proc even
when invoked by an unprivileged user, but we don't want to add unnecessary
bloat.

Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-05-11 17:26:27 +02:00
..
adjtimex.c adjtimex: make its help text and printed data a bit less cryptic 2014-04-17 11:29:34 +02:00
bbconfig.c rename archive.h to bb_archive.h. no code changes 2011-09-22 12:45:14 +02:00
beep.c *: remove "Options:" string from help texts 2011-06-05 03:58:28 +02:00
chat.c fix assorted unused code and wrong format specs found by cppchekc (bug 6716) 2013-11-29 16:43:33 +01:00
chrt.c chrt: remove warning for _POSIX_PRIORITY_SCHEDULING 2013-07-08 11:20:13 +02:00
Config.src taskset: support CPU masks for more than 64 CPUs 2014-08-17 19:36:22 +02:00
conspy.c conspy: add framebuffer support, -Q option. 2011-09-13 18:39:04 +02:00
crond.c libbb: introduce and use is_prefixed_with() 2015-03-12 17:48:34 +01:00
crontab.c wall,crontab: use xopen_as_uid_gid() 2013-10-08 14:53:29 +02:00
dc.c libbb: introduce and use is_prefixed_with() 2015-03-12 17:48:34 +01:00
devfsd.c libbb: introduce and use is_prefixed_with() 2015-03-12 17:48:34 +01:00
devmem.c move remaining help text from include/usage.src.h 2011-04-11 03:29:49 +02:00
eject.c *: remove "Options:" string from help texts 2011-06-05 03:58:28 +02:00
fbsplash.c libbb: introduce and use is_prefixed_with() 2015-03-12 17:48:34 +01:00
fbsplash.cfg
flash_eraseall.c flash_eraseall: implement -N 2013-03-15 00:42:39 +01:00
flash_lock_unlock.c move remaining help text from include/usage.src.h 2011-04-11 03:29:49 +02:00
flashcp.c flashcp: change BUFSIZE to 4k 2014-12-10 13:44:27 +01:00
hdparm.c Use unsigned printf/scanf conversion where more appropriate 2013-11-29 16:45:45 +01:00
i2c_tools.c i2c-tools: only try /dev/i2c/* if opening /dev/i2c-* fails with ENOENT 2015-05-11 17:26:27 +02:00
inotifyd.c inotify: if PROG is -, print events to stdout 2011-10-10 20:24:02 +02:00
ionice.c *: remove "Options:" string from help texts 2011-06-05 03:58:28 +02:00
Kbuild.src taskset: support CPU masks for more than 64 CPUs 2014-08-17 19:36:22 +02:00
last_fancy.c *: Switch to POSIX utmpx API 2015-04-02 23:03:46 +02:00
last.c *: Switch to POSIX utmpx API 2015-04-02 23:03:46 +02:00
less.c less: make -E work 2014-09-23 22:58:18 +02:00
makedevs.c makedevs: fix help-text 2011-05-30 23:00:47 +02:00
man.c libbb: introduce and use is_prefixed_with() 2015-03-12 17:48:34 +01:00
microcom.c *: remove "Options:" string from help texts 2011-06-05 03:58:28 +02:00
mountpoint.c *: remove "Options:" string from help texts 2011-06-05 03:58:28 +02:00
mt.c move remaining help text from include/usage.src.h 2011-04-11 03:29:49 +02:00
nandwrite.c nanddump: don't show --bb in usage when disabled 2014-12-18 11:55:08 +01:00
raidautorun.c move remaining help text from include/usage.src.h 2011-04-11 03:29:49 +02:00
readahead.c move remaining help text from include/usage.src.h 2011-04-11 03:29:49 +02:00
rfkill.c rfkill: use new-style config/kbuild/applet 2013-11-20 14:21:29 +01:00
runlevel.c *: Switch to POSIX utmpx API 2015-04-02 23:03:46 +02:00
rx.c whitespace fixes. no code changes 2013-01-15 13:58:01 +01:00
setserial.c setserial: Fix typo: s/baund_rate/baud_rate/g 2013-03-22 17:04:51 +01:00
setsid.c setsid: code shrink, expanded comments 2013-08-07 18:49:51 +02:00
strings.c *: remove "Options:" string from help texts 2011-06-05 03:58:28 +02:00
taskset.c taskset: fix logic error in "if it doesn't start with 0x..." 2014-08-31 01:35:45 +02:00
time.c whitespace fixes. no code changes 2013-01-15 13:58:01 +01:00
timeout.c move remaining help text from include/usage.src.h 2011-04-11 03:29:49 +02:00
ttysize.c move remaining help text from include/usage.src.h 2011-04-11 03:29:49 +02:00
ubi_tools.c ubiattach: add option -O 2015-01-30 18:33:24 +01:00
volname.c move remaining help text from include/usage.src.h 2011-04-11 03:29:49 +02:00
wall.c *: Switch to POSIX utmpx API 2015-04-02 23:03:46 +02:00
watchdog.c CONFIG_PID_FILE_PATH: new configuration option for pidfile paths 2012-12-19 15:53:33 -05:00