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a6ae999b3b
busybox/networking
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Denys Vlasenko a6ae999b3b ftpd: escape chroot prior to re-executing ls helper 
When we merely chdir to saved "real" root fd,
exec("proc/self/exe") works for static executables but not
for dynamic ones (they can't find their interpreter).

With this patch, we also *chroot* to real root.
As a bonus, this gives us proper usernames, timezone conversion
etc.

function                                             old     new   delta
popen_ls                                             203     259     +56
ftpd_main                                           2362    2366      +4

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-27 12:24:39 +02:00
..
libiproute libbb: use a wrapper around sysconf(_SC_CLK_TCK) to save a few bytes 2014-06-22 14:01:13 +02:00
ssl_helper networking/ssl_helper: experimental matrixssl-based ssl helper 2014-02-23 23:31:13 +01:00
udhcp udhcpc: make hostname sanitization optional. Closes 3979 2014-06-16 00:17:00 +02:00
arp.c Use unsigned printf/scanf conversion where more appropriate 2013-11-29 16:45:45 +01:00
arping.c *: remove "Options:" string from help texts 2011-06-05 03:58:28 +02:00
brctl.c whitespace cleanup. no code changes 2013-01-14 15:57:44 +01:00
Config.src ntpd: add optional support for /etc/ntp.conf 2014-03-23 18:34:51 +01:00
dnsd.c typo fixes 2011-07-08 05:47:49 +02:00
ether-wake.c ether-wake: shorten help text, reduce packet buffer size 2013-10-14 19:04:20 +02:00
ftpd.c ftpd: escape chroot prior to re-executing ls helper 2014-06-27 12:24:39 +02:00
ftpgetput.c ftp{get,put}: tweak help text 2012-03-19 12:22:57 +01:00
hostname.c hostname: do not use gethostbyname() for "hostname -s" 2013-12-17 19:13:45 +01:00
httpd_indexcgi.c httpd_indexcgi.c: fix compile failure 2012-09-03 12:20:10 +02:00
httpd_post_upload.txt httpd_post_upload.txt example: handle binary files too 2009-11-13 09:37:50 +01:00
httpd_ssi.c whitespace fixes. no code changes 2013-01-14 01:34:48 +01:00
httpd.c httpd: make sire pfd[TO_CGI].revents is cleared before poll() 2013-09-18 12:08:41 +02:00
ifconfig.c fix build error with musl libc due to if_slip.h 2013-08-15 09:54:51 +02:00
ifenslave.c whitespace cleanup. no code changes 2013-01-14 15:57:44 +01:00
ifplugd.c ifplugd: code shrink 2014-02-10 09:51:03 +01:00
ifupdown.c libbb: rename execable -> executable. No code changes 2014-05-02 17:15:58 +02:00
inetd.c CONFIG_PID_FILE_PATH: new configuration option for pidfile paths 2012-12-19 15:53:33 -05:00
interface.c networking: fix potential overflow in ife_print6() 2013-08-14 17:43:05 +02:00
ip.c iproute: fix help text 2011-12-06 18:59:55 +01:00
ipcalc.c *: remove "Options:" string from help texts 2011-06-05 03:58:28 +02:00
isrv_identd.c fakeidentd: simplify ndelay manipulations 2014-01-10 17:12:54 +01:00
isrv.c *: make GNU licensing statement forms more regular 2010-08-16 20:14:46 +02:00
isrv.h fixlet for the previous commit #2 2014-01-09 20:09:43 +01:00
Kbuild.src ping: add -t TTL option 2010-11-28 23:01:18 +01:00
nameif.c nameif: fix use-after-free in ENABLE_FEATURE_CLEAN_UP code 2013-02-28 10:31:54 +01:00
nbd-client.c mass removal of underscores from _BB_DIR_foo and _BB_SUID_foo 2011-01-18 13:58:01 +01:00
nc_bloaty.c nc: fix option bit positions. Closes 6926 2014-02-26 13:58:59 +01:00
nc.c nc: use symbolic SHUT_WR instead of literal 1 2013-07-28 21:08:37 +02:00
netstat.c Use unsigned printf/scanf conversion where more appropriate 2013-11-29 16:45:45 +01:00
nslookup.c nslookup: set default DNS server again. Hopefully helps with 675 2013-06-27 01:09:51 +02:00
ntpd_simple.c use [s]rand(), not [s]random() 2014-03-05 18:58:15 +01:00
ntpd.c ntpd: fix wrong delay value in one of the printed messages 2014-04-20 13:04:23 +02:00
ping.c ping: revert "try SOCK_DGRAM if no root privileges" 2014-01-09 11:53:26 +01:00
pscan.c Use unsigned printf/scanf conversion where more appropriate 2013-11-29 16:45:45 +01:00
route.c libbb: use a wrapper around sysconf(_SC_CLK_TCK) to save a few bytes 2014-06-22 14:01:13 +02:00
slattach.c *: remove "Options:" string from help texts 2011-06-05 03:58:28 +02:00
tc.c fix assorted unused code and wrong format specs found by cppchekc (bug 6716) 2013-11-29 16:43:33 +01:00
tcpudp_perhost.c *: make GNU licensing statement forms more regular 2010-08-16 20:14:46 +02:00
tcpudp_perhost.h *: make GNU licensing statement forms more regular 2010-08-16 20:14:46 +02:00
tcpudp.c tcpudp: simplify help text 2011-07-25 16:35:44 +02:00
telnet.c telnet: code shrink 2013-05-12 02:13:24 +02:00
telnetd.c telnet: convert CR -> CR LF, not CR -> CR NUL when sending data to server 2012-09-13 13:00:49 +02:00
telnetd.ctrlSQ.patch *: mass renaming of USE_XXXX to IF_XXXX 2009-04-21 11:09:40 +00:00
tftp.c tftpd: fix -u USER to work with chroot. Closes 5348 2012-07-18 17:32:32 +02:00
traceroute.c fix assorted unused code and wrong format specs found by cppchekc (bug 6716) 2013-11-29 16:43:33 +01:00
tunctl.c *: remove "Options:" string from help texts 2011-06-05 03:58:28 +02:00
vconfig.c vconfig: fix help text; small code shrink. Closes 4658 2012-01-16 04:00:37 +01:00
wget.c wget: fix a case where progress bar isn't updated if writes are very slow 2014-03-27 16:50:29 +01:00
whois.c *: remove "Options:" string from help texts 2011-06-05 03:58:28 +02:00
zcip.c add INIT_G()'s. No code changes. 2011-09-21 01:59:15 +02:00