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2014-07-27top: fix and merge code to parse /proc/meminfoTimo Teräs
display_header() code to parse meminfo as is was buggy: - uninitialized variables were used if meminfo was not as expected - meminfo parsing failed on new kernels (3.14+) as new field 'MemAvailable' was introduced between MemFree and Buffers - shared memory was handled only for ancient kernels (2.4.x and earlier) as result Buffers and shared memory fields were shown with bogus values on current kernels. The new code does not try to parse the old style summary header, as the separated fields are always present (it saves code size). Additionally, both Shmem (2.6+) and MemShared (2.4 and earlier) fields are now parsed and summed for shared memory usage; as only one of them exists depending on kernel version. display_topmem_header() parses also meminfo so this makes it use the same code for code shrink. function old new delta display_header - 681 +681 display_topmem_process_list 465 684 +219 parse_meminfo - 189 +189 static.fields - 106 +106 static.match 132 - -132 .rodata 120254 120117 -137 display_topmem_header 513 - -513 display_process_list 1705 667 -1038 ------------------------------------------------------------------------------ (add/remove: 3/2 grow/shrink: 1/2 up/down: 1195/-1820) Total: -625 bytes Signed-off-by: Timo Teräs <timo.teras@iki.fi> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-07-25sha3: add 32-bit optimized bit-sliced implementationDenys Vlasenko
It is an interesting trick, but so far I only managed to make it work correctly, not to make it faster and/or smaller. The code is ifdefed out for now. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-07-20zcip: fix link-local IP conflict detectionKen Sharp
During link-local IP resolution, if a regular ARP request is received during the ARP probe period, it will incorrectly cause a target IP conflict. This then leads to a new IP being picked unnecessarily. Per RFC 3927, section 2.2.1, we should flag a target IP conflict only if the source IP is null, the target IP matches our IP, and the source hw addr does not match our hw addr. function old new delta zcip_main 1354 1322 -32 Signed-off-by: Ken Sharp <ken.sharp@ni.com> Signed-off-by: Ben Shelton <ben.shelton@ni.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-07-16udhcp: add PXELINUX path prefix option (code 210) definitionJeremy Kerr
Like d3092c99, this change adds support for the DHCP "path-prefix" option, as defined in RFC 5071. We use the string identifer "pxepathprefix". Adding this option makes string parsing in the hook scripts simpler. function old new delta dhcp_option_strings 255 269 +14 dhcp_optflags 72 74 +2 Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-07-15ntpd: add support for -I IFACEDenys Vlasenko
function old new delta packed_usage 29908 29947 +39 ntp_init 428 460 +32 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 71/0) Total: 71 bytes Signed-off-by: Nikolaus Froehlich <nikolaus@mathematik.uni-marburg.de> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-07-04modinfo: fix module parsing with kernel >= 2.6.37David Marchand
display() function returns the length of the value we are displaying + 1. As a consequence, if we have field=value\0field=value\0field=value in the binary, then the second occurence will be skipped as ptr will miss the first character of the following field. Example trying to list aliases from ixgbe.ko on a 3.2 kernel. - In the module we have: alias=pci:v00008086d00001560sv*sd*bc*sc*i*\0 alias=pci:v00008086d0000154Asv*sd*bc*sc*i*\0 alias=pci:v00008086d00001557sv*sd*bc*sc*i*\0 alias=pci:v00008086d0000154Fsv*sd*bc*sc*i*\0 alias=pci:v00008086d0000154Dsv*sd*bc*sc*i*\0 ... - Using modinfo -F alias ixgbe returns: alias: pci:v00008086d00001560sv*sd*bc*sc*i* alias: pci:v00008086d00001557sv*sd*bc*sc*i* alias: pci:v00008086d0000154Dsv*sd*bc*sc*i* ... This problem appeared with kernel commit "modules: no need to align .modinfo strings" b6472776816af1ed52848c93d26e3edb3b17adab in 2.6.37. Fix this by not trusting display() return value but increment ptr by strlen(ptr) (the same way as depmod.c does). Signed-off-by: David Marchand <david.marchand@6wind.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-07-04fatattr: use the standard type for 32-bit intDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-07-04setlogcons: fix help textDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-07-03syslogd: make "reopen log file every second" logic work for multiple logsJoshua Judson Rosen
Move last_log_time from a single global to *each logFile_t* so that we can actually apply the logic to every log-file in multi-file configurations, rather than working only for the first file written in each 1-second interval and then leaving the others connected to possibly wrong files. Signed-off-by: Joshua Judson Rosen <jrosen@harvestai.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-07-02syslogd: syslogd: don't *decrement* log_file->size on write failuresJoshua Judson Rosen
Even if we fail to write to a log-file, and it's not growing, it's not *shrinking* either.... Signed-off-by: Joshua Judson Rosen <jrosen@harvestai.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-07-02syslogd: make "-O -" log to stdoutDenys Vlasenko
function old new delta packed_usage 29871 29908 +37 log_locally 404 440 +36 syslogd_main 1966 1956 -10 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/1 up/down: 73/-10) Total: 63 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-07-01test: fix mishandling of "test '(' = '('" and similarDenys Vlasenko
function old new delta test_main 246 350 +104 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-07-01libbb: fix bb_ask() to flush input before prompt, not after. Closes 7190Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-30cpio: reinstate "options:" line in help textDenys Vlasenko
Otherwise, help text is confusing: where do operation modes end and where options start? Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-30Rename INIT_LAST to INIT_FUNC to avoid confusionBartosz Golaszewski
We don't have an INIT_FIRST, so let's rename INIT_LAST to INIT_FUNC to imply that the function is called at program start-up. Also: the priority argument for __attribute__((constructor)) isn't used, so let's remove it. Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-30fatattr: new appletPascal Bellard
function old new delta fatattr_main - 281 +281 packed_usage 29821 29871 +50 bit_to_char - 10 +10 applet_names 2472 2480 +8 applet_main 1436 1440 +4 applet_nameofs 718 720 +2 ------------------------------------------------------------------------------ (add/remove: 3/0 grow/shrink: 4/0 up/down: 355/0) Total: 355 bytes Signed-off-by: Pascal Bellard <pascal.bellard@ads-lu.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-30lzop: add overflow checkDenys Vlasenko
See CVE-2014-4607 http://www.openwall.com/lists/oss-security/2014/06/26/20 function old new delta lzo1x_decompress_safe 1010 1031 +21 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-27stat: fix printing selinux context and null-dereferenceMichael Gernoth
busybox stat tries to always print the selinux context, even if it is not requested which leads to a segmentation fault due to dereferencing a null-pointer. This also changes the format-string used to print the context to so it actually produces useful output. Signed-off-by: Michael Gernoth <michael@gernoth.net> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-27ftpd: do not use root_fd if we are not in chrootDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-27ftpd: for LIST, open current directory *in the child*Denys Vlasenko
Last change introduced an open fd leak. This is the fix. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-27ftpd: escape chroot prior to re-executing ls helperDenys Vlasenko
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>
2014-06-26awk: fix handling of "if ... break ; else ..." - closes 7226Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-26ftpd: optimize writes of LIST results a bitDenys Vlasenko
function old new delta handle_dir_common 201 207 +6 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-25nanddump: change default to --bb=skipbadRichard Genoud
since mtd-utils 1.4.7, the default behaviour of nanddump is skipbad (commit 2521d4f1b6b9866a9c89f3c11a4f6a3d763ff1d7) Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-25nanddump: kill -b Omit bad blockRichard Genoud
since mtd-utils 1.4.7, the omit bad block method has been removed. (cf commit d8b8f780ec3c916f3990e9227d6bfbb22bf42ef8) Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-25nanddump: add options --bb=skipbad and padbadRichard Genoud
In mtd-utils, the bad block options changed in favor of --bb=[skipbad|padbad|dumpbad] and omitbad has been removed. This patch add the --bb=skipbad and padbad methods to busybox' nanddump. padbad is the current default behaviour. The difference between skipbad and omitbad is this one: On a 16K block NAND, if the 1st block of mtd0 is bad, we'll have: nanddump -b -l 16384 /dev/mtd0 | wc -c 0 nanddump --bb=skipbad -l 16384 /dev/mtd0 | wc -c 16384 <- data from 1st good block Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-25nanddump: correct rounding to next page (lead to infinite loop)Richard Genoud
The rounding to next page formula was wrong: ex: (len | ~(meminfo->writesize - 1)) + 1; len=128K writesize=4K (len | ~(meminfo->writesize - 1)) + 1 => 4 294 963 201 ?! correct rounding formula: ((len - 1) | (meminfo->writesize - 1)) + 1 => 128K len = 130K ((len - 1) | (meminfo->writesize - 1)) + 1 => 132K modprobe nandsim parts="20,20" badblocks="22,23" without patch: nanddump /dev/mtd1 | wc -c [...] infinite loop with the patch: nanddump /dev/mtd1 | wc -c 327680 Signed-off-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-25ftpd: support deprecated XPWD commandDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-25libbb: fix compile failure if both ARG_MAX and _SC_ARG_MAX are definedDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-22unlink: new appletIsaac Dunham
function old new delta unlink_main - 45 +45 packed_usage 29667 29686 +19 Signed-off-by: Isaac Dunham <ibid.ag@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-22unit-tests: implement the unit-testing frameworkBartosz Golaszewski
This set of patches adds a simple unit-testing framework to Busybox unit-tests: add some helper macros for unit-test framework implementation unit-tests: implement the unit-testing framework unit-tests: add basic documentation on writing the unit test cases unit-tests: modify the Makefile 'test' target to run unit-tests too unit-tests: add two example test cases unit-tests: modify the existing strrstr test code to use the unit-test framework Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-22libbb: use a wrapper around sysconf(_SC_CLK_TCK) to save a few bytesBartosz Golaszewski
function old new delta bb_sc_clk_tck - 10 +10 timescmd 118 113 -5 print_route 1763 1758 -5 mpstat_main 1288 1283 -5 iostat_main 1947 1942 -5 INET_setroute 879 871 -8 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/5 up/down: 10/-28) Total: -18 bytes Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-22find: use sysconf(_SC_ARG_MAX) to determine the command-line size limitDenys Vlasenko
The find utility uses a hardcoded value of 32 * 1024 as the limit of the command-line length when calling 'find -exec ... {} +'. This results in over 4 times more execve() calls than in coreutils' find. This patch uses the limit defined in system headers. Based on the patch by Bartosz Golaszewski <bartekgola@gmail.com>. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-19find: exit code fixes for find -execDenys Vlasenko
function old new delta func_exec 127 100 -27 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-17find: add optional support for '-exec ... {} +'Bartosz Golaszewski
function old new delta do_exec - 309 +309 parse_params 1416 1487 +71 find_main 342 406 +64 packed_usage 29958 30014 +56 func_exec 138 127 -11 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 3/1 up/down: 500/-11) Total: 489 bytes Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-16udhcpc: make hostname sanitization optional. Closes 3979Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-02syslogd: Unify unlink/truncate + unlock log-rotation logicJoshua Judson Rosen
Always unlink + reopen, rather than sometimes using ftruncate(); using a single code-path reduces the opportunity for either mistakes or duplicate code. Signed-off-by: Joshua Judson Rosen <jrosen@harvestai.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-02syslogd: remember to un-writelock log-files even when called with "-b 0"Joshua Judson Rosen
Signed-off-by: Joshua Judson Rosen <jrosen@harvestai.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-06-02syslogd: avoid spurious ftrunctate() calls for "-b 0"Joshua Judson Rosen
Forgetting to re-set log_file->size after truncating to zero discards log-data for the next 1 second following an oversize-induced purge, when we shouldn't necessarily throw that data away. Signed-off-by: Joshua Judson Rosen <jrosen@harvestai.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-05-26modprobe-small: fix safe_strncpy truncating last char of module nameDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-05-19Add conditional support for -v / --verboseDenys Vlasenko
With FEATURE_VERBOSE off, practically no size change. With it on: function old new delta remove_file 493 556 +63 install_main 719 765 +46 bb_make_directory 383 419 +36 rmdir_main 162 191 +29 copy_file 1516 1544 +28 mv_main 502 525 +23 cmp_main 677 693 +16 bbconfig_config_bz2 5264 5279 +15 mkdir_main 158 168 +10 install_longopts 66 76 +10 rm_main 167 175 +8 nexpr 840 846 +6 scan_tree 275 280 +5 fsck_main 1807 1811 +4 ed_main 2541 2545 +4 expand_one_var 1574 1575 +1 swap_on_off_main 420 418 -2 parse_command 1443 1440 -3 redirect 1279 1274 -5 do_load 946 918 -28 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 16/4 up/down: 304/-38) Total: 266 bytes Based on the patch by Igor Živković. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-05-11getty: explain when setsid() fails. no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-05-11Merge branch 'master' of git+ssh://vda@busybox.net/var/lib/git/busyboxDenys Vlasenko
2014-05-04trylink: emit names of linked executablesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-05-04which: rewriteTito Ragusa
function old new delta which_main 237 212 -25 Signed-off-by: Tito Ragusa <farmatito@tiscali.it> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-05-03trylink: emit names of linked executablesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-05-03which: rewriteTimo Teräs
function old new delta which_main 237 212 -25 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-05-02libbb: rename execable -> executable. No code changesDenys Vlasenko
English speakers complained that it sounded awfully broken. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-05-02libbb: fix empty PATH components handlingDenys Vlasenko
function old new delta find_execable 81 86 +5 exists_execable 71 66 -5 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2014-05-02rtcwake: fix incorrect (reversed) rtc/sys adjuestment; code shrinkDenys Vlasenko
function old new delta rtcwake_main 482 462 -20 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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