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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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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>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Handle O=
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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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>
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Signed-off-by: Ron Lee <ron@debian.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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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.
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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
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Now they are only enabled if linuxthreads.old are selected.
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- add note about "/etc/config/" and the resolver code per se.
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as in /etc/ethers (man 5 ethers)
Assume that any of socket- or IP support indicate that need.
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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
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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
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test/regex/tst-regex2.c: fix testcase to compile with just "gcc <file>.c"
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__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
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ifaddrs.c: cosmetics, no code changes
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remove one superfluous statement.
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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
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*: 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
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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
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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
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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
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text data bss dec hex filename
- 45 0 480 525 20d libc/inet/gethostbyname.o
+ 18 0 0 18 12 libc/inet/gethostbyname.o
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otherwise use xdrrec_{get,put}int32 + trivial transform.
eliminate warnings.
des: small shrink + eliminate a warning
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Appears to build fine (several .configs tried)
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delete some duplication in constants.
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delete two stray files which compile to nothing
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almost no code changes
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in _res structure. Used by busybox's nslookup.
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add largish comment explaining what we are doing, and why;
fixes to make IPv6-only resolver possible
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in __dns_lookup.
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configurable. we don't use most of it anyway.
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in one of recent commits :)
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text data bss dec hex filename
- 1545 2 4 1551 60f libc/inet/dnslookup.o
+ 1528 2 4 1534 5fe libc/inet/dnslookup.o
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do not treat negative response as error
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"gethostbyname() fails if DNS server returns more than 23 addresses"
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No logic changes. Code size is the same too.
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text data bss dec hex filename
- 259 0 0 259 103 libc/inet/herror.o
+ 243 0 0 243 f3 libc/inet/herror.o
- 720 0 0 720 2d0 libc/inet/ns_name.o
+ 710 0 0 710 2c6 libc/inet/ns_name.o
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