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* Remove NULL-checks before free() and a few related dead assignments.mmcc2015-12-281-5/+3
| | | | ok and valuable input from millert@
* remove unused variablechl2015-12-271-2/+1
| | | | ok tedu@
* Simplify return call of rand() and rand_r() to make it easier to read.tb2015-12-181-2/+2
| | | | | | | | | This is slightly less robust, but RAND_MAX must be one below a power of two in both variants anyway. Based on a suggestion by Matthew Martin. ok tedu@
* tiny sanity check on file sizetedu2015-12-101-1/+3
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* Integrate two patches originally from Daniel Micay.tedu2015-12-091-8/+76
| | | | | | | | | | | | 1. Optionally add random "canaries" to the end of an allocation. This requires increasing the internal size of the allocation slightly, which probably results in a large effective increase with current power of two sizing. Therefore, this option is only enabled via 'C'. 2. When writing junk (0xdf) to freed chunks (current default behavior), check that the junk is still intact when finally freeing the delayed chunk to catch some potential use after free. This should be pretty cheap so there's no option to control it separately. ok deraadt tb
* change Xrs from now-defunct db(3) to dbopen(3); this wasn;t ajmc2015-11-302-6/+6
| | | | | | | straight replace: thanks both to schwarze and maja for feedback on how to rewrite parts; i've snuck in an rcs id->openbsd id change in dev_mkdb too;
* Wrap <icdb.h> so that calls go direct and the symbols are all weakguenther2015-11-251-1/+12
| | | | ok tedu@
* Don't fake a bulleted list by prefixing items with 'o'.bentley2015-11-241-8/+8
| | | | ok jmc@
* add a version field to prevent mayhem if different data gets storedtedu2015-11-181-3/+7
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* update for new symbols and codetedu2015-11-181-2/+2
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* Add icdb, the internal c database. A simpler replacement for the oldtedu2015-11-181-0/+367
| | | | Berzerkeley DB code.
* update NAME section to include all documented functions,jmc2015-11-101-3/+3
| | | | | | or otherwise change Dt to reflect the name of an existing function; feedback/ok schwarze
* libc.so can't be unloaded, so move the hidden atexit() and pthread_atfork()guenther2015-11-101-1/+13
| | | | | | | | | | | stubs for the executable from crtbegin.o into libc, which lets them be excluded from static links that don't use them. For this, drop the normal crt{begin,end}S.o from libc.so: the .init and .fini sections for libc aren't called at the right times anyway, so it's good that they're unused. libc.so just needs __guard_local and the .note.openbsd.ident section, so add them to stack_protector.c for now (this will be improved) "good time" deraadt@
* Move the _atfork_list definition to atexit.c so that the fork syscall stubguenther2015-10-251-1/+5
| | | | | | doesn't get pulled into all static executables ok millert@ jca@
* Hide __atexit and __atexit_register_cleanup()guenther2015-10-252-2/+9
| | | | | | | | Wrap __cxa_{atexit,finalize}() so the call from exit() goes direct Switch regress/lib/libc/atexit/ to be built with -static so that it can still access __atexit* ok millert@ jca@
* Use sigaction() instead of signal() to avoid pulling in unnecessaryguenther2015-10-251-3/+5
| | | | | | | wrappers. To keep uses from crawling back in, mark signal() as deprecated inside libc. ok deraadt@
* Loop the waitpid() on EINTR, and save and restore the disposition ofguenther2015-10-231-9/+12
| | | | | | | SIGINT and SIGQUIT with sigaction() instead of signal() so that all bits are preserved. ok deraadt@ millert@
* Merge the sigaction() and sigprocmask() overloads/wrappers from libpthreadguenther2015-10-231-4/+3
| | | | | | | | | into libc, and move pthread_sigmask() as well (just a trivial wrapper). This provides consistent handling of SIGTHR between single- and multi-threaded programs and is a step in the merge of all the libpthread overloads, providing some ASM and Makefile bits that the other wrappers will need. ok deraadt@ millert@
* In rev 1.15 the sizeof argument was fixed in a strlcat() call butmillert2015-10-131-2/+2
| | | | | | the truncation check immediately following it was not updated to match. Not an issue in practice since the buffers are the same size. OK deraadt@
* Eliminate the last of the LINTEDn and PRINTFLIKEn comments. In oneguenther2015-10-011-4/+2
| | | | | | | case, by deleting some useless '& of an array' we also eliminate the need for the casts which prompted the original lint warnings ok deraadt@
* lint is dead: delete useless LINTLIBRARY commentsguenther2015-09-262-4/+2
| | | | ok millert@
* Don't wrap initialized variables: binutils appears to be mishandling themguenther2015-09-191-1/+3
| | | | | | on arm and m88k problems with optind observed by jsg@
* Only two of the *rand48.c files need <math.h>, so just #include it in themguenther2015-09-143-4/+5
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* use .Va for global variables, and .Vt where the type is includedschwarze2015-09-141-4/+3
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* Remove cast of int* to int*guenther2015-09-141-2/+2
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* For now, permit overriding of the malloc family, to make emacs happyguenther2015-09-131-6/+6
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* Overshot w/PROTO_DEPRECATED: seed48_deterministic() is used internallyguenther2015-09-131-1/+2
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* Wrap <stdlib.h> so that calls go direct and the symbols not in theguenther2015-09-1320-24/+49
| | | | | | C standard are all weak. Apply __{BEGIN,END}_HIDDEN_DECLS to gdtoa{,imp}.h, hiding the arch-specific __strtorx, __ULtox_D2A, __strtorQ, __ULtoQ_D2A symbols.
* Wrap <inttypes.h> and finish wrapping of <wchar.h> so that calls go directguenther2015-09-122-2/+4
| | | | and the symbols not in the C standard are weak
* Wrap <getopt.h> to make the functions weak and make access to the initializedguenther2015-09-121-1/+6
| | | | variables go direct. (Common variables cannot be aliased.)
* Pull in namespace.h when building all .c files using gcc's -include option,guenther2015-09-101-2/+1
| | | | | | | | so that we can provide asm labels for the memcpy/memset/__stack_smash_handler calls that it generates ab initio. Eliminate direct #includes of it. Make sure it's a dependency of all objects (unnecessary for asm, but close enough). ok deraadt@
* reduce .Nd to one line and kill .Tn while hereschwarze2015-09-105-25/+15
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* missing commas at the end of .Nm lines in the NAME sectionschwarze2015-09-101-3/+3
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* Move the __rand48_* declarations into rand48.h, and then hide both themguenther2015-08-277-25/+13
| | | | | | and __dorand48() and __rand48_deterministic ok deraadt@
* All these files include <stdlib.h>, so do not need to castderaadt2015-08-202-5/+5
| | | | malloc/calloc/realloc* returns.
* Just return if nmemb is 0. Avoids a NULL dereference and ismillert2015-06-211-1/+4
| | | | | consistent with the behavior of the other libc sort functions. OK deraadt@
* Add dlclose(3) to SEE ALSOguenther2015-05-121-2/+3
| | | | ok millert@ jmc@ schwarze@
* When checking flags that will be passed to open(), test the O_ACCMODE portionguenther2015-05-111-2/+3
| | | | | | separately to avoid false negatives. ok miod@ millert@
* Another couple of commas in the wrong place, ok jmcnicm2015-04-141-3/+3
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* Make pthread_atfork() track the DSO that called it like atexit() does,guenther2015-04-071-1/+19
| | | | | | | | | | unregistering callbacks if the DSO is unloaded. Move the callback handling from libpthread to libc, though libpthread still overrides the inner call to handle locking and thread-library reinitialization. Major version bump for both libc and libpthread. verification that this fixes various ports ajacoutot@ asm assistance miod@; ok millert@ deraadt@
* improve realloc. when expanding a region, actually use the free page cachetedu2015-04-061-7/+16
| | | | | instead of simply zapping it. this can save many syscalls in a program that repeatedly grows and shrinks a buffer, as observed in the wild.
* remove incorrect statement. the standard *does* require calloc to checktedu2015-03-141-7/+2
| | | | | for overflow. stop talking about old broken systems, there's little use for such info.
* lsearch and lfind return void *tedu2015-02-151-4/+4
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* Use .Rv where appropriate, and move it to RETURN VALUES;schwarze2015-01-292-18/+7
| | | | | remove .Tn, and a few minor macro adjustments. Patch from Kaspars at Bankovskis dot net.
* Improve wording in alloca.tedu2015-01-171-7/+5
| | | | | | | 1. it's not a bug; it's a caveat. 2. "slightly unsafe" gives me the willies. 3. one .Xr to malloc should suffice ok deraadt jmc
* Move to the <limits.h> universe.deraadt2015-01-163-9/+6
| | | | review by millert, binary checking process with doug, concept with guenther
* missing , found by Dongsheng Songderaadt2015-01-081-3/+3
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* rename kern enter/exit macros to malloc enter/leave to better reflecttedu2015-01-051-7/+7
| | | | what's going on.
* typo; ok deraadtsthen2014-12-162-3/+3
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* warn for correct symbolderaadt2014-12-161-2/+2
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