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* Add error checking to some calls to __find_arguments(). Matches similartb2017-11-161-6/+16
| | | | | | | | changes by schwarze to vfprintf.c r1.71. Cherrypicked from android: https://github.com/aosp-mirror/platform_bionic/commit/5305a4d4a723b06494b93f2df81733b83a0c46d3 ok millert
* fmt0 is a wchar_t *, so use %ls to reportderaadt2017-08-151-3/+3
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* % is escaped with more %, not backslash.tedu2016-08-171-3/+3
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* Generate syslog warnings for %s fmt strings NULL to "(null)" conversions.deraadt2016-08-171-3/+20
| | | | | | | | | | | Over time we can repair software which performs this non-standard behaviour, and fix bugs along the way. Let's first find out how bad the situation is by deploying this in snapshots. This type of logging is possible because OpenBSD syslog_r(3) -> sendsyslog(2) is side-effect free enough to be used in the bowels of libc. ok tedu
* Remove NULL-checks before free() and a few related dead assignments.mmcc2015-12-281-15/+5
| | | | ok and valuable input from millert@
* Delete the final, inscrutable NOSTRICT and VARARGS lint commentsguenther2015-09-291-2/+1
| | | | ok millert@
* Add framework for resolving (pun intended) libc namespace issues, usingguenther2015-08-311-1/+2
| | | | | | | | | | | | wrapper .h files and asm labels to let internal calls resolve directly and not be overridable or use the PLT. Then, apply that framework to most of the functions in stdio.h, string.h, err.h, and wchar.h. Delete the should-have-been-hidden-all-along _v?(err|warn)[cx]? symbols while here. tests clean on i386, amd64, sparc64, powerpc, and mips64 naming feedback from kettenis@ and millert@ ok kettenis@
* Show the sign for NaN as per POSIX; from Elliott Hughes.daniel2014-12-211-4/+3
| | | | ok martynas@, millert@, doug@
* Remove assigned but unused local variables and macro from vfwprintf().stsp2014-06-041-7/+1
| | | | | Found by Elliott @ google ok mpi@
* Add #ifndef NO_PRINTF_PERCENT_N. Since we are fully standardized, wederaadt2014-05-031-1/+5
| | | | | | | don't use disable %n ourselves. But Google's Android libc is based on our libc.... Giving them an easy knob to disable this dangerous feature easily make their job easier without making our job any harder. Request from Elliott @ google
* It's still safe to assumed 'signed' existsguenther2014-03-191-3/+3
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* a __fputwc_unlock() prototype was available in fvwrite.h, so use thatderaadt2013-11-121-3/+1
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* Pull in gdtoa.h instead of declaring __dtoa() and __freedtoa() directlyguenther2013-11-011-3/+2
| | | | ok deraadt@
* add some prototypes, casts, includes, parenthesis, and whatnot totedu2013-04-171-1/+3
| | | | silence some warnings.
* Use nl_langinfo(RADIXCHAR) instead of localeconv()->decimal_point inmatthew2012-06-261-2/+5
| | | | | | | | | | | | | | | | printf() and avoid calling it unless needed (i.e., when we have a floating point value to print). This isn't a big concern currently due to our limited locale support and current localeconv() implementation, but it's still technically a data race and implementing POSIX 2008 per-thread locales is likely to make it worse. nl_langinfo() isn't guaranteed by POSIX to be thread-safe either, but at least our current implementation is thread-safe and it's a simpler interface to keep that way. Printing floating point values isn't async-signal-safe anyway due to gdtoa()'s use of malloc(), so that's not an issue. ok deraadt, stsp, millert
* Always free the multibyte->wchar conversion buffer allocated in __mbsconv().stsp2011-05-091-1/+3
| | | | ok matthew dcoppa miod
* Bring back wprintf. We've sorted out what to do for gcc2 and gcc3.stsp2011-04-281-0/+1519
| | | | "Yes, go ahead then" deraadt
* Back out wprintf until we've determined what to do for gcc2 and gcc3 arches.stsp2011-04-241-1519/+0
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* Add fwprintf, swprintf, vfwprintf, vswprintf, vwprintf, and wprintf to libc.stsp2011-04-241-0/+1519
Based on our vfprintf etc. implementations. Wide character parts based on NetBSD but with lots of macros expanded. Minor bump for libc. ok kettenis espie
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