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* add posix_close, accepted for inclusion in the next issue of POSIXRich Felker2013-12-061-0/+3
| | | | | this is purely a wrapper for close since Linux does not support EINTR semantics for the close syscall.
* move struct ucred under _GNU_SOURCE in sys/socket.h for clean posix namespaceSzabolcs Nagy2013-12-041-0/+2
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* fix SHUT_WR typo in sys/socket.h and duplicate definitions of SHUT_*Szabolcs Nagy2013-12-041-5/+1
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* fix res_mkquery and res_send prototypes in resolv.hSzabolcs Nagy2013-12-041-4/+2
| | | | | | | | | historically these functions appeared in BSD 4.3 without prototypes, then in the bind project prototypes were added to resolv.h, but those were incompatible with the definitions of the implementation. the bind resolv.h became the defacto api most systems use now, but the old internal definitions found their way into the linux manuals and thus into musl.
* remove duplicate definition of _PATH_LASTLOG in paths.hRich Felker2013-12-031-1/+0
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* remove now-unnecessary features.h inclusion from fnmatch.hRich Felker2013-12-021-2/+0
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* expose FNM_* extensions in fnmatch.h without _GNU_SOURCERich Felker2013-12-021-3/+0
| | | | | at least a couple of these are used on BSD too, and the FNM_* namespace is reserved in fnmatch.h anyway.
* increase TTY_NAME_MAX limit to 32Rich Felker2013-11-291-1/+1
| | | | | | | | the old value of 20 was reported by Laurent Bercot as being insufficient for a reasonable real-world usage case. actual problem was the internal buffer used by ttyname(), but the implementation of ttyname uses TTY_NAME_MAX, and for consistency it's best to increase both. the new value is aligned with glibc.
* adjust fallback INFINITY definition for FLT_EVAL_METHOD==2 caseRich Felker2013-11-261-1/+1
| | | | | | | | | | on archs with excess precision, the floating point constant 1e40f may be evaluated such that it does not actually produce an infinity. 1e5000f is sufficiently large to produce an infinity for all supported floating point formats. note that this definition of INFINITY is only used for old or non-GNUC compilers anyway; despite being a portable, conforming definition, it leads to erroneous warnings on many compilers and thus using the builtin is preferred.
* restore type of NULL to void * except when used in C++ programsRich Felker2013-11-248-0/+33
| | | | | | | | | | | | | | unfortunately this eliminates the ability of the compiler to diagnose some dangerous/incorrect usage, but POSIX requires (as an extension to the C language, i.e. CX shaded) that NULL have type void *. plain C allows it to be defined as any null pointer constant. the definition 0L is preserved for C++ rather than reverting to plain 0 to avoid dangerous behavior in non-conforming programs which use NULL as a variadic sentinel. (it's impossible to use (void *)0 for C++ since C++ lacks the proper implicit pointer conversions, and other popular alternatives like the GCC __null extension seem non-conforming to the standard's requirements.)
* Fix dn_comp prototype and add stubMichael Forney2013-11-241-1/+1
| | | | This function is used by ping6 from iputils.
* use 0 instead of NULL in headers where NULL is not definedSzabolcs Nagy2013-11-242-3/+3
| | | | some macros in sys/mtio.h and syslog.h used NULL without defining it
* add TCP_NOTSENT_LOWAT tcp socket option, new in linux v3.12Szabolcs Nagy2013-11-231-0/+1
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* add linux tcp state enumsTimo Teräs2013-11-231-0/+12
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* add multicast structures from RFC 3678 to netinet/in.hTimo Teräs2013-11-231-1/+42
| | | | | and use _GNU_SOURCE || _BSD_SOURCE guards for all of the RFC 3678 namespace polluting things like glibc/uclibc does.
* timeradd/timersub: cast result to void to get rid of warningsrofl0r2013-11-231-2/+2
| | | | | | | previously: timersub(&now, t, &diff); warning: value computed is not used [-Wunused-value]
* add legacy getloadavg apiSzabolcs Nagy2013-11-211-0/+1
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* math: add (obsolete) bsd drem and finite functionsSzabolcs Nagy2013-11-211-0/+6
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* write floating point limit constants to 21 significant decimal placesRich Felker2013-11-202-10/+10
| | | | | | | | | | this is enough to produce the correct value even if the constant is interpreted as 80-bit extended precision, which matters on archs with excess precision (FLT_EVAL_METHOD==2) under at least some interpretations of the C standard. the shorter representations, while correct if converted to the nominal precision at translation time, could produce an incorrect value at extended precision, yielding results such as (double)DBL_MAX != DBL_MAX.
* adjust sys/wait.h not to produde errors in strict ISO C feature profileRich Felker2013-11-091-3/+7
| | | | | | | | | | | | siginfo_t is not available from signal.h when the strict ISO C feature profile (e.g. passing -std=c99 to gcc without defining any other feature test macros) is used, but the type is needed to declare waitid. using sys/wait.h (or any POSIX headers) in strict ISO C mode is an application bug, but in the interest of compatibility, it's best to avoid producing gratuitous errors. the simplest fix I could find is suppressing the declaration of waitid (and also signal.h inclusion, since it's not needed for anything else) in this case, while still exposing everything else in sys/wait.h
* fix inttypes.h PRI and SCN macros for [u]intptr_t typesRich Felker2013-10-301-11/+13
| | | | | | while using "l" unconditionally gave the right behavior due to matching sizes/representations, it was technically UB and produced compiler warnings with format string checking.
* POSIX conformance fix: define struct entry in search.hSzabolcs Nagy2013-10-291-1/+1
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* add legacy ftime function and sys/timeb.hRich Felker2013-10-251-0/+22
| | | | | | despite being marked legacy, this was specified by SUSv3 as part of the XSI option; only the most recent version of the standard dropped it. reportedly there's actual code using it.
* fix multiple minor namespace issues in headersRich Felker2013-10-204-7/+15
| | | | | | | | | | | | | fcntl.h: AT_* is not a reserved namespace so extensions cannot be exposed by default. langinfo.h: YESSTR and NOSTR were removed from the standard. limits.h: NL_NMAX was removed from the standard. signal.h: the conditional for NSIG was wrongly checking _XOPEN_SOURCE rather than _BSD_SOURCE. this was purely a mistake; it doesn't even match the commit message from the commit that added it.
* use consistent include guard name in arpa/ftp.hSzabolcs Nagy2013-10-181-2/+2
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* fix typo in socket.h (wrong macro name)Szabolcs Nagy2013-10-181-1/+1
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* fix clockid macro names in time.h, reported by Paul SchutteSzabolcs Nagy2013-10-071-2/+2
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* math: fix comparision macros (isless etc) when FLT_EVAL_METHOD!=0Szabolcs Nagy2013-09-271-10/+10
| | | | | | | This is a change in ISO C11 annex F (F.10.11p1), comparision macros can't round their arguments to their semantic type when the evaluation format has wider range and precision. (ie. they must be consistent with the builtin relational operators)
* sys/resource.h: add PRIO_MIN and PRIO_MAX for getpriority and setprioritySzabolcs Nagy2013-09-161-0/+3
| | | | | | | These constants are not specified by POSIX, but they are in the reserved namespace, glibc and bsd systems seem to provide them as well. (Note that POSIX specifies -NZERO and NZERO-1 to be the limits, but PRIO_MAX equals NZERO)
* update include/elf.h following glibc changesSzabolcs Nagy2013-09-161-27/+143
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | the changes were verified using various sources: linux: include/uapi/linux/elf.h binutils: include/elf/common.h glibc: elf/elf.h sysv gabi: http://www.sco.com/developers/gabi/latest/contents.html sun linker docs: http://docs.oracle.com/cd/E18752_01/pdf/817-1984.pdf and platform specific docs - fixed: EF_MIPS_* E_MIPS_* e_flags: fixed accoding to glibc and binutils - added: ELFOSABI_GNU for EI_OSABI entry: glibc, binutils and sysv gabi EM_* e_machine values: updated according to linux and glibc PN_XNUM e_phnum value: from glibc and linux, see oracle docs NT_* note types: updated according to linux and glibc DF_1_* flags for DT_FLAGS_1 entry: following glibc and oracle docs AT_HWCAP2 auxv entry for more hwcap bits accoding to linux and glibc R_386_SIZE32 relocation according to glibc and binutils EF_ARM_ABI_FLOAT_* e_flags: added following glibc and binutils R_AARCH64_* relocs: added following glibc and aarch64 elf specs R_ARM_* relocs: according to glibc, binutils and arm elf specs R_X86_64_* relocs: added missing relocs following glibc - removed: HWCAP_SPARC_* flags were moved to arch specific header in glibc R_ARM_SWI24 reloc is marked as obsolete in glibc, not present in binutils not specified in arm elf spec, R_ARM_TLS_DESC reused its number see http://www.codesourcery.com/publications/RFC-TLSDESC-ARM.txt - glibc changes not pulled in: ELFOSABI_ARM_AEABI (bare-metal system, binutils and glibc disagrees about the name) R_68K_* relocs for unsupported platform R_SPARC_* ditto EF_SH* ditto (e_flags) EF_S390* ditto (e_flags) R_390* ditto R_MN10300* ditto R_TILE* ditto
* sys/socket.h: add new SO_BUSY_POLL socket optionSzabolcs Nagy2013-09-151-0/+1
| | | | low latency busy poll sockets are new in linux v3.11
* ptrace.h: add new ptrace requests to get/set sigmaskSzabolcs Nagy2013-09-151-0/+2
| | | | | PTRACE_GETSIGMASK and PTRACE_SETSIGMASK were added in linux v3.11 and used by checkpoint/restore tools
* net/if_arp.h: add missing ARP hardware identifiers from linux uapi headersSzabolcs Nagy2013-09-151-1/+7
| | | | | | the removed ARPHRD_IEEE802154_PHY was only present in the kernel api in v2.6.31 (by accident), but it got into the glibc headers (in 2009) and remained there since this header was not updated since then.
* netinet/in.h: add missing IP protocol numbers from the linux uapi headersSzabolcs Nagy2013-09-151-0/+2
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* support configurable page size on mips, powerpc and microblazeSzabolcs Nagy2013-09-151-0/+2
| | | | | | | | | | | | | | | | PAGE_SIZE was hardcoded to 4096, which is historically what most systems use, but on several archs it is a kernel config parameter, user space can only know it at execution time from the aux vector. PAGE_SIZE and PAGESIZE are not defined on archs where page size is a runtime parameter, applications should use sysconf(_SC_PAGE_SIZE) to query it. Internally libc code defines PAGE_SIZE to libc.page_size, which is set to aux[AT_PAGESZ] in __init_libc and early in __dynlink as well. (Note that libc.page_size can be accessed without GOT, ie. before relocations are done) Some fpathconf settings are hardcoded to 4096, these should be actually queried from the filesystem using statfs.
* add workaround header for wait.h remapping to sys/wait.hRich Felker2013-09-011-0/+2
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* only expose struct tcphdr under _GNU_SOURCERich Felker2013-08-301-1/+3
| | | | | | | | the BSD and GNU versions of this structure differ, so exposing it in the default _BSD_SOURCE profile is possibly problematic. both versions could be simultaneously supported with anonymous unions if needed in the future, but for now, just omitting it except under _GNU_SOURCE should be safe.
* add struct tcphdr in netinet/tcp.hRich Felker2013-08-301-0/+33
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* stdbool.h should define __bool_true_false_are_defined even for C++Rich Felker2013-08-281-2/+2
| | | | | | | | while the incorporation of this requirement from C99 into C++11 was likely an accident, some software expects it to be defined, and it doesn't hurt. if the requirement is removed, then presumably __bool_true_false_are_defined would just be in the implementation namespace and thus defining it would still be legal.
* add SUN_LEN macro to sys/un.h under appropriate feature testsRich Felker2013-08-211-0/+19
| | | | | this is ugly and useless, but it seems to be the least-ugly way to provide it...
* de-duplicate dn_expand, fix return value and signature, clean upRich Felker2013-08-141-1/+1
| | | | | | | | | | | | | | | | | the duplicate code in dn_expand and its incorrect return values are both results of the history of the code: the version in __dns.c was originally written with no awareness of the legacy resolver API, and was later copy-and-paste duplicated to provide the legacy API. this commit is the first of a series that will restructure the internal dns code to share as much code as possible with the legacy resolver API functions. I have also removed the loop detection logic, since the output buffer length limit naturally prevents loops. in order to avoid long runtime when encountering a loop if the caller provided a ridiculously long buffer, the caller-provided length is clamped at the maximum dns name length.
* add missing MSG_EXCEPT in sys/msg.hRich Felker2013-08-141-0/+1
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* provide declarations for strtod_l and familyRich Felker2013-08-131-0/+4
| | | | | | | | these aliases were originally intended to be for ABI compatibility only, but their presence caused regressions in broken gnulib-based software whose configure scripts detect the existing of these functions then use them without declarations, resulting in bogus return values.
* fix definitions of WIFSTOPPED and WIFSIGNALED to support up to signal 127Rich Felker2013-08-102-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | mips has signal numbers up to 127 (formerly, up to 128, but the last one never worked right and caused kernel panic when used), so 127 in the "signal number" field of the wait status is insufficient for determining that the process was stopped. in addition, a nonzero value in the upper bits must be present, indicating the signal number which caused the process to be stopped. details on this issue can be seen in the email with message id CAAG0J9-d4BfEhbQovFqUAJ3QoOuXScrpsY1y95PrEPxA5DWedQ@mail.gmail.com on the linux-mips mailing list, archived at: http://www.linux-mips.org/archives/linux-mips/2013-06/msg00552.html and in the associated thread about fixing the mips kernel bug. commit 4a96b948687166da26a6c327e6c6733ad2336c5c fixed the corresponding issue in uClibc, but introduced a multiple-evaluation issue for the WIFSTOPPED macro. for the most part, none of these issues affected pure musl systems, since musl has up until now (incorrectly) defined SIGRTMAX as 64 on all archs, even mips. however, interpreting status of non-musl programs on mips may have caused problems. with this change, the full range of signal numbers can be made available on mips.
* add pthread_setaffinity_np and pthread_getaffinity_np functionsRich Felker2013-08-101-0/+3
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* add cpu affinity interfacesRich Felker2013-08-101-0/+61
| | | | | | | this first commit just includes the CPU_* and sched_* interfaces, not the pthread_* interfaces, which may be added later. simple sanity-check testing has been done for the basic interfaces, but most of the macros have not yet been tested.
* sys/personality.h: add missing C++ compatrofl0r2013-08-081-0/+7
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* sys/personality.h: add missing macrosrofl0r2013-08-081-0/+33
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* add some new linux AT_* flagsRich Felker2013-08-031-0/+2
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* add prototypes for euidaccess/eaccessRich Felker2013-08-031-0/+2
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