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2010-04-06Fix use-after-free bug in __dns_lookupGabor Juhos
If the type of the first answer does not match with the requested type, then the dotted name was freed. If there are no further answers in the DNS reply, this pointer was used later on in the same function. Additionally it is passed to the caller, and caused strange behaviour. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2010-03-30resolv: DEBUG-print nameserver we talk toBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2010-03-25prettify make cleanBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2010-02-03/etc/resolv.conf: support "timeout:n" and "attempts:n" optionsDenys Vlasenko
text data bss dec hex filename - 1745 2 4 1751 6d7 libc/inet/dnslookup.o + 1760 2 4 1766 6e6 libc/inet/dnslookup.o - 962 0 4 966 3c6 libc/inet/opennameservers.o + 1099 0 4 1103 44f libc/inet/opennameservers.o - 462 4 472 938 3aa libc/inet/res_init.o + 454 4 468 926 39e libc/inet/res_init.o - 870 0 0 870 366 libc/inet/res_query.o + 867 0 0 867 363 libc/inet/res_query.o Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-02-01errno: hide __libc_resp, __libc_errno, and __libc_h_errnoKhem Raj
Signed-off-by: Khem Raj <raj.khem@gmail.com>
2010-01-24gethostid: switch to getaddrinfo and shrinkBernhard Reutner-Fischer
text data bss dec hex filename 382 0 0 382 17e libc/inet/hostid.os.old 326 0 0 326 146 libc/inet/hostid.os Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2010-01-23getprotoent_r: use correct define for return valueBernhard Reutner-Fischer
Doesn't correctly set result=NULL on error or EOF. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2010-01-23libc/inet: mark other odd /etc/conf/ spotBernhard Reutner-Fischer
and wrap it in FALLBACK_TO_CONFIG_RESOLVCONF too. -24b Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2010-01-23libc/inet: set path to resolver file via CPPBernhard Reutner-Fischer
No objcode changes. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2010-01-23libc/inet: convert to foo-y kbuild styleBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2010-01-21fix typo in version mismatch msgBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2010-01-21ether_line: fix build for socket && !ipBernhard Reutner-Fischer
The internal __ether_line helper needs ether_ntoa_r() Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2009-12-11Include bits/libc-lock.h to get __libc_once_defineKhem Raj
Signed-off-by: Khem Raj <raj.khem@gmail.com> Acked-by: Austin Foxley <austinf@cetoncorp.com>
2009-10-22inet_ntop4: avoid inline initializationMike Frysinger
We only need to set the first byte to 0, but gcc likes to zero out the rest of the string with memset() when using this initialization style. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-10-14check stat("/etc/resolv.conf") for errorsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-10-13libc/inet/resolv.c: reread resolv.conf if its mtime was changedBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-10-08link-time warning for obsolescent/removed network funcsBernhard Reutner-Fischer
Signed-off-by: aldot <rep.dot.nop@gmail.com>
2009-09-26resolv.c: add support for per thread res_stateAustin Foxley
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
2009-09-18convert // comments to /**/; remove empty #if/#endif pairs. no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-18trim Experimentally off and uncommented hiddenBernhard Reutner-Fischer
sed -i -e '/Experimentally off - /d' $(grep -rl "Experimentally off - " *) sed -i -e '/^\/\*[[:space:]]*libc_hidden_proto(/d' $(grep -rl "libc_hidden_proto" *) should be a nop Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2009-09-06rexec.c: style fixes, no code chages (verified with objdump)Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-06rexec.c: small code shrinkDenys Vlasenko
text data bss dec hex filename - 1223 0 0 1223 4c7 libc/inet/rpc/rexec.o + 1214 0 0 2239 8bf libc/inet/rpc/rexec.o Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-06comment out "int rexecoptions"; make "char ahostbuf[]" static (was hidden)Denys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-05do not save/restore errno around free() callsDenys Vlasenko
In any non-buggy program free() does not fail. And when it fails in a buggy program, the failure is usually fatal (heap corruption and segfault). Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-05opensock: work correctly on IPv6-only configDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-08-17support building out-of-treeBernhard Reutner-Fischer
Handle O= Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2009-07-22add hidden aliases for ntoh/hton functionsMike Frysinger
Sometimes references for these functions show up (like when debugging is enabled), so add hidden aliases for them if needed. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-07-05Avoid type-punned pointers that break strict-aliasingRon
Signed-off-by: Ron Lee <ron@debian.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-04-18libc/inet/resolv.c:Denis Vlasenko
Collapse __length_dotted into __length_question (the sole user of it). Make __length_question and __decode_answer static, they are used only once by only one function. Delete __decode_question, it is unused. All in all, four less .o files in libc.a. Document what __dns_lookup returns (length of the packet). Propagate packet len into __decode_answer, __length_question, __decode_dotted and check that we do not use data past the end of the packet. Rename some variables/parameters to better names (len -> packet_len, data -> packet etc). Add mini-doc how DNS packets look like. Style cleanup.
2009-03-10resolver:Denis Vlasenko
res_query: do not unconditionally set h_errno to TRY_AGAIN (closes bug 173). cleanups: s/__dn_expand/dn_expand/, remove superfluous dn_expand declaration, remove libc_hidden_proto junk
2009-02-25Reinstate __libc_foo's needed for linuxthreads.old.Denis Vlasenko
Now they are only enabled if linuxthreads.old are selected.
2009-02-13- fix comment style to make it compile againBernhard Reutner-Fischer
- add note about "/etc/config/" and the resolver code per se.
2008-12-29- ethers only make sense if we want to play with ethernet addressesBernhard Reutner-Fischer
as in /etc/ethers (man 5 ethers) Assume that any of socket- or IP support indicate that need.
2008-12-22docs/defines.txt: document _extern_inlineDenis Vlasenko
libc/inet/ether_addr.c: optimize tolower, we ever use it on 0-9a-f libc/inet/ntop.c: optimize tolower, we ever use it on 0-9a-f with locale support on, code size change is: text data bss dec hex filename - 396 0 24 420 1a4 libc/inet/ether_addr.os + 306 0 24 330 14a libc/inet/ether_addr.os - 1453 0 0 1453 5ad libc/inet/ntop.os + 1430 0 0 1430 596 libc/inet/ntop.os
2008-12-20Deal with a few data fields which may be made constant.Denis Vlasenko
text data bss dec hex filename - 1237 9 28 1274 4fa libc/inet/rpc/getrpcent.os + 1246 0 28 1274 4fa libc/inet/rpc/getrpcent.os - 773 24 0 797 31d libc/misc/time/_time_localtime_tzi.os + 772 16 0 788 314 libc/misc/time/_time_localtime_tzi.os
2008-12-17resolv: fix testcase failureDenis Vlasenko
test/regex/tst-regex2.c: fix testcase to compile with just "gcc <file>.c"
2008-12-14heed compiler warnings about checking non-defined variables in #if directivesDenis Vlasenko
2008-12-10*: remove some __libc_XXX functions:Denis Vlasenko
__libc_accept __libc_close __libc_connect __libc_creat __libc_creat64 __libc_fsync __libc_lseek __libc_lseek64 __libc_msync __libc_nanosleep __libc_open __libc_open64 __libc_pause __libc_read __libc_readv __libc_recv __libc_recvfrom __libc_recvmsg __libc_send __libc_sendmsg __libc_sendto __libc_tcdrain __libc_wait __libc_waitpid __libc_write __libc_writev They were removed from glibc 1 May 2004: http://sources.redhat.com/ml/libc-hacker/2004-05/msg00001.html
2008-12-10remove __libc_getdomainname alias. google says only we have it.Denis Vlasenko
2008-12-09getaddrinfo: runp->ifa_addr indeed can be NULL, don't dereference itDenis Vlasenko
ifaddrs.c: cosmetics, no code changes
2008-12-08getaddrinfo: remove superfluout indentation, fix incorrect one.Denis Vlasenko
remove one superfluous statement.
2008-12-08- fix loop for checking ifaddr on both IPv4 and IPv6Bernhard Reutner-Fischer
2008-12-06resolver: make new name resolutions reread /etc/resolv.confDenis Vlasenko
if 256+ seconds passed since last read; fix cases where we switch to next search domain instead of switching to new server optimize ip4/ip6 combined cases; rewrite for(;;) loops so that it's clearer what's going on; document buffer usage; add TODOs and FIXMEs (for one, gethostbyname2 does not fill ->h_aliases field in the result AT ALL, and is iffy in general) text data bss dec hex filename - 245898 1403 11904 259205 3f485 libuClibc-0.9.30-svn.so + 245785 1403 11904 259092 3f414 libuClibc-0.9.30-svn.so
2008-12-01hostid: improve extremely unreadable partsDenis Vlasenko
*: remove checks of sigaction and sigprocmask results in cases where they clearly can't fail: sigaction(known_good_sig) sigprocmask(known_good_how) text data bss dec hex filename - 393 4 0 397 18d libc/pwd_grp/lckpwdf.o + 382 4 0 386 182 libc/pwd_grp/lckpwdf.o - 56 0 0 56 38 libc/signal/sigblock.o + 44 0 0 44 2c libc/signal/sigblock.o - 211 0 0 211 d3 libc/signal/sigset.o + 202 0 0 202 ca libc/signal/sigset.o - 56 0 0 56 38 libc/signal/sigsetmask.o + 44 0 0 44 2c libc/signal/sigsetmask.o - 309 0 0 309 135 libc/unistd/sleep.o + 256 0 0 256 100 libc/unistd/sleep.o
2008-12-01constify more dataDenis Vlasenko
text+data text+rodata rwdata bss filename - 2534 2510 24 0 libc/inet/rpc/clnt_udp.o + 2534 2534 0 0 libc/inet/rpc/clnt_udp.o - 1904 1880 24 0 libc/inet/rpc/clnt_tcp.o + 1904 1904 0 0 libc/inet/rpc/clnt_tcp.o - 770 746 24 4 libc/inet/rpc/clnt_raw.o + 770 770 0 4 libc/inet/rpc/clnt_raw.o
2008-12-01rpc: constify data, localize unnecessarily static dataDenis Vlasenko
text+data text+rodata rwdata bss filename - 2308 2284 24 24 libc/inet/rpc/clnt_unix.o + 2308 2308 0 0 libc/inet/rpc/clnt_unix.o
2008-12-01random: use smaller data fields where appropriateDenis Vlasenko
text data bss dec hex filename - 130 156 0 286 11e libc/stdlib/random.o + 130 148 0 278 116 libc/stdlib/random.o - 586 0 0 586 24a libc/stdlib/random_r.o + 570 0 0 570 23a libc/stdlib/random_r.o
2008-12-01gethostbyname can use gethostbyname2, saving one nearly 0.5k static bufferDenis Vlasenko
text data bss dec hex filename - 45 0 480 525 20d libc/inet/gethostbyname.o + 18 0 0 18 12 libc/inet/gethostbyname.o
2008-12-01rpc: should check against max for int32, not intDenis Vlasenko
2008-12-01rpc: ifdef out xdrrec_{get,put}long if int32 == long,Denis Vlasenko
otherwise use xdrrec_{get,put}int32 + trivial transform. eliminate warnings. des: small shrink + eliminate a warning
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