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2011-04-13add syscall wrapper for flockRich Felker1-0/+7
it should be noted that flock does not mix well with standard fcntl locking, but nonetheless some applications will attempt to use flock instead of fcntl if both exist. options to configure or small patches may be needed. debian maintainers have plenty of experience with this unfortunate situation...
2011-04-13fix bug whereby getopt_long allowed mismatch in last char of option nameRich Felker1-1/+1
2011-04-13fix typos on RLIM_NLIMITS, remove _GNU_SOURCE test for itRich Felker1-3/+1
RLIM_* is in the reserved namespace for this header
2011-04-13fix and cleanup suseconds_t/timeval stuff (broken on 64-bit)Rich Felker3-10/+2
trash in the upper 32 bits was making the kernel sleep forever in select on 64-bit systems.
2011-04-13implement getgrouplist (for initgroups), formerly dummied-outv0.7.8Rich Felker1-4/+16
2011-04-13fix prototypes/signature for setgroups, etc.Rich Felker3-2/+8
2011-04-13fix incorrect GNU sighandler_t typedefRich Felker1-1/+1
2011-04-13implement memrchr (nonstandard) and optimize strrchr in terms of itRich Felker3-4/+16
2011-04-13add ptsname_r (nonstandard) and split ptsname (standard) to separate fileRich Felker3-11/+17
this eliminates the ugly static buffer in programs that use ptsname_r.
2011-04-12speed up threaded forkRich Felker1-2/+1
after fork, we have a new process and the pid is equal to the tid of the new main thread. there is no need to make two separate syscalls to obtain the same number.
2011-04-12more changes for upcoming 0.7.8Rich Felker1-1/+12
2011-04-12optimize ntohl etc. in terms of bswap functionsRich Felker4-20/+12
we can do this without violating the namespace now that they are macros/inline functions rather than extern functions. the motivation is that gcc was generating giant, slow, horrible code for the old functions, and now generates a single byte-swapping instruction.
2011-04-12move bswap functions to static inline in byteswap.hRich Felker3-16/+25
2011-04-12fix broken bswap_32Rich Felker1-1/+1
2011-04-12utmpx.h is no longer under standards, so expose ut_exit structureRich Felker1-3/+3
2011-04-12add some traditional aliases to stat.hRich Felker1-0/+6
2011-04-12fix printf("%.9g", 1.1) and similar not dropping trailing zerosRich Felker1-1/+3
2011-04-12add missing rlimit macrosRich Felker1-0/+8
2011-04-11more types cleanupRich Felker3-18/+3
the basic idea is that the only things in alltypes.h should be types that either vary from system to system (in practice, not just in theoretical la-la land - this is the implementation so we choose what constraints we want to impose on ports) or which are needed by multiple system headers.
2011-04-11cleanup types stuff in headers, fix missing u_int*_t in sys/types.hRich Felker4-29/+19
2011-04-11fix errno handling in scandir:Rich Felker1-2/+1
1. saved errno was not being restored, illegally clearing errno to 0. 2. no need to backup and save errno around free; it will not touch except perhaps when the program has already invoked UB...
2011-04-11fix fputwc return valueRich Felker1-1/+1
2011-04-11remove ugly warning-suppression hack from crypt - this invokes UB!Rich Felker1-1/+1
2011-04-11update README since we now DO have a mailing listRich Felker1-4/+4
2011-04-10add some ugly legacy type names in sys/types.h (u_char etc.)Rich Felker1-0/+8
2011-04-10add legacy BSD-style timer*() macros in sys/time.hRich Felker1-0/+10
2011-04-10add missing UTIME_* macros in sys/stat.hRich Felker1-0/+3
2011-04-10add missing float.h macrosRich Felker2-0/+6
actually FLT_ROUNDS needs to expand to a static inline function that obtains the current rounding mode and returns it, but that will be added later with fenv.h stuff.
2011-04-09run pthread tsd destructors when a timer thread pretends to exitRich Felker1-0/+6
2011-04-09greatly improve SIGEV_THREAD timersRich Felker3-15/+21
calling pthread_exit from, or pthread_cancel on, the timer callback thread will no longer destroy the timer.
2011-04-09prepare notes for 0.7.8 releaseRich Felker1-0/+18
2011-04-09work around a nasty bug in linux readv syscallRich Felker1-3/+4
according to posix, readv "shall be equivalent to read(), except..." that it places the data into the buffers specified by the iov array. however on linux, when reading from a terminal, each iov element behaves almost like a separate read. this means that if the first iov exactly satisfied the request (e.g. a length-one read of '\n') and the second iov is nonzero length, the syscall will block again after getting the blank line from the terminal until another line is read. simply put, entering a single blank line becomes impossible. the solution, fortunately, is simple. whenever the buffer size is nonzero, reduce the length of the requested read by one byte and let the last byte go through the buffer. this way, readv will already be in the second (and last) iov, and won't re-block on the second iov.
2011-04-08better fix sysconf pthread stack minRich Felker1-1/+1
2011-04-08consistency with pthread stack min in limits.hRich Felker1-1/+1
2011-04-08fix broken sigsetjmp on x86_64Rich Felker1-7/+9
2011-04-08workaround broken msghdr struct on 64bit linuxRich Felker3-2/+23
POSIX clearly specifies the type of msg_iovlen and msg_controllen, and Linux ignores it and makes them both size_t instead. to work around this we add padding (instead of just using the wrong types like glibc does), but we also need to patch-up the struct before passing it to the kernel in case the caller did not zero-fill it. if i could trust the kernel to just ignore the upper 32 bits, this would not be necessary, but i don't think it will ignore them...
2011-04-08fix ipv6 address printing: 2001 appeared as 201, etc.Rich Felker1-3/+5
2011-04-08fix broken dns response parsing code that made most ipv6 lookups failRich Felker1-4/+6
2011-04-08return the requested string as the "canonical name" for numeric addressesRich Felker1-0/+1
previously NULL was returned in ai_canonname, resulting in crashes in some callers. this behavior was incorrect. note however that the new behavior differs from glibc, which performs reverse dns lookups. POSIX is very clear that a reverse DNS lookup must not be performed for numeric addresses.
2011-04-07fix uninitialized variables in dns lookup codeRich Felker1-2/+2
2011-04-07fix bug in TRE found by clang (typo && instead of &)Rich Felker1-1/+1
2011-04-07fix misplaced *'s in string functions (harmless)Rich Felker3-3/+3
2011-04-07fix broken unsigned comparison in wcstoumaxRich Felker1-1/+1
2011-04-07fix breakage due to converting a return type to size_t in iconv...Rich Felker1-1/+1
2011-04-06fixed crash in new rsyscall (failure to set sa_flags for signal handler)Rich Felker1-0/+2
2011-04-06consistency: change all remaining syscalls to use SYS_ rather than __NR_ prefixRich Felker38-40/+40
2011-04-06move rsyscall out of pthread_create moduleRich Felker10-109/+133
this is something of a tradeoff, as now set*id() functions, rather than pthread_create, are what pull in the code overhead for dealing with linux's refusal to implement proper POSIX thread-vs-process semantics. my motivations are: 1. it's cleaner this way, especially cleaner to optimize out the rsyscall locking overhead from pthread_create when it's not needed. 2. it's expected that only a tiny number of core system programs will ever use set*id() functions, whereas many programs may want to use threads, and making thread overhead tiny is an incentive for "light" programs to try threads.
2011-04-06pthread exit stuff: don't bother setting errno when we won't check it.Rich Felker1-2/+2
2011-04-06fix rsyscall handler: must not clobber errno from signal contextRich Felker1-2/+4
2011-04-06fix typo in sys/msg.hRich Felker1-1/+1