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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
2011-04-06add startup abi functions, dummy for now. eventually needed for c++ support.Rich Felker2-0/+10
2011-04-06add _res (__res_state()) dummyRich Felker1-0/+9
2011-04-06add IN_LOOPBACKNET constant (nonstandard but in reserved namespace)Rich Felker1-0/+2
2011-04-06document more changes for 0.7.7v0.7.7Rich Felker1-1/+10
2011-04-06fix prototype for strsepRich Felker2-1/+2
2011-04-06fix completely bogus loop condition in getmntent_rRich Felker1-1/+1
somehow this worked on my simple fstab, but horribly broke in general, leading to use of uninitialized offset array and crashes.
2011-04-06major semaphore improvements (performance and correctness)Rich Felker5-21/+37
1. make sem_[timed]wait interruptible by signals, per POSIX 2. keep a waiter count in order to avoid unnecessary futex wake syscalls
2011-04-06fix signal-based timers with null sigevent argumentRich Felker5-28/+19
since timer_create is no longer allocating a structure for the timer_t and simply using the kernel timer id, it was impossible to specify the timer_t as the argument to the signal handler. the solution is to pass the null sigevent pointer on to the kernel, rather than filling it in userspace, so that the kernel does the right thing. however, that precludes the clever timerid-versus-threadid encoding we were doing. instead, just assume timerids are below 1M and thread pointers are above 1M. (in perspective: timerids are sequentially allocated and seem limited to 32k, and thread pointers are at roughly 3G.)
2011-04-06fix incorrect (and conflicting on LP64 archs) types for sysv ipc msgq functionsRich Felker2-2/+2
2011-04-05fix (hopefully) statvfs breakage on x86_64 that resulted from fixing i386...Rich Felker2-2/+10
2011-04-05document more changesRich Felker1-0/+2
2011-04-05new framework to inhibit thread cancellation when neededRich Felker3-5/+17
with these small changes, libc functions which need to call functions which are cancellation points, but which themselves must not be cancellation points, can use the CANCELPT_INHIBIT and CANCELPT_RESUME macros to temporarily inhibit all cancellation.
2011-04-05add ip6 pktinfo stuff for x86_64Rich Felker1-0/+12
these defs should probably all be moved out of bits and unified...
2011-04-05add sysv ipc message queues (completely untested)Rich Felker4-0/+58
2011-04-05getopt.h is a GNU-getopt-specific header. always expose GNU functions.Rich Felker1-2/+0
2011-04-05add sysexits.h legacy headerRich Felker1-0/+21
2011-04-05implement the adjtime and adjtimex functions (nonstandard)Rich Felker2-0/+34
2011-04-05add getmntent_r interface (all of mntent is nonstandard anyway)Rich Felker1-12/+17
2011-04-05add some missing ipv6 stuffRich Felker1-0/+12
2011-04-05implement if_indextoname and if_nametoindex functionsRich Felker2-0/+36
2011-04-05add (nonstandard) cfmakeraw functionRich Felker1-0/+12
2011-04-05add pivot_root syscall wrapperRich Felker1-0/+6
2011-04-05add more legacy functions: setlinebuf and setbufferRich Felker4-1/+17
2011-04-05alternate name for syslog.hRich Felker1-0/+1
2011-04-05uncomment IP_PKTINFORich Felker2-2/+2
this was a hack leftover from testing before the initial check-in to git.
2011-04-05support the nonstandard err.h interfacesRich Felker2-0/+84
note that unlike the originals, these do not print the program name/argv[0] because we have not saved it anywhere. this could be changed in __libc_start_main if desired.
2011-04-05release notes for next bugfix releaseRich Felker1-0/+14
2011-04-05fix misaligned read on early string termination in strchrRich Felker1-1/+2
this could actually cause rare crashes in the case where a short string is located at the end of a page and the following page is not readable, and in fact this was seen in gcc compiling certain files.
2011-04-05fix overflow in printf %N$ argument handlingRich Felker1-2/+2
2011-04-05fix various floating point rounding and formatting errors in *printfRich Felker1-17/+25
2011-04-04release notes for 0.7.6 bugfix releasev0.7.6Rich Felker1-0/+24
2011-04-04fix rare but nasty under-allocation bug in malloc with large requestsRich Felker1-1/+1
the bug appeared only with requests roughly 2*sizeof(size_t) to 4*sizeof(size_t) bytes smaller than a multiple of the page size, and only for requests large enough to be serviced by mmap instead of the normal heap. it was only ever observed on 64-bit machines but presumably could also affect 32-bit (albeit with a smaller window of opportunity).
2011-04-04simplify vdprintf implementation greatly based on recent vfprintf changesRich Felker1-5/+2
since vfprintf will provide a temporary buffer in the case where the target FILE has a zero buffer size, don't bother setting up a real buffer for vdprintf. this also allows us to skip the call to fflush since we know everything will be written out before vfprintf returns.
2011-04-04use a local temp buffer for unbuffered streams in vfprintfRich Felker2-0/+14
this change makes it so most calls to fprintf(stderr, ...) will result in a single writev syscall, as opposed to roughly 2*N syscalls (and possibly more) where N is the number of format specifiers. in principle we could use a much larger buffer, but it's best not to increase the stack requirements too much. most messages are under 80 chars.
2011-04-03fix nl_langinfo to actually use the existing, correct internal versionRich Felker2-15/+5
2011-04-03make ualarm actually work (obsolete function removed from SUS)Rich Felker1-4/+9