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* Mention strtok_r in STANDARDSjca2017-08-311-2/+6
| | | | POSIX 2001 instead of POSIX.1c suggested by millert@ and jmc@, ok jmc@
* two MALLOC_STATS only tweaks; one from David CARLIER, the other found by clangotto2017-08-201-8/+4
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* Use sendsyslog() directly instead of syslog_r() for the "backwards memcpy"guenther2017-08-141-3/+12
| | | | | | | messages, to avoid pulling in piles of other machinery unnecessarily problem observed by schwarze@ ok deraadt@ millert@
* Minimize #includes, particularly to avoid thread_private.hguenther2017-08-122-7/+3
| | | | ok tedu@
* add missing and correct misspelled names, most in NAME sections;schwarze2017-08-012-6/+8
| | | | | found with regress/usr.bin/mandoc/db/dbm_dump; OK jmc@
* zap trailing whitespace;jmc2017-07-221-2/+2
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* rework the page a bit, clarify a few things, maybe better wordingtedu2017-07-221-8/+13
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* one more instance of the previous commit; also initialize ->offset to aotto2017-07-101-2/+3
| | | | definite value in the size == 0 case
* update the little endian processor list to give it a chance of matchingtedu2017-07-082-6/+6
| | | | what the reader is using.
* Only access offset if canaries are enabled *and* size > 0, otherwise offsetotto2017-07-071-2/+2
| | | | is not initialized. Problem spotted by Carlin Bingham; ok phessler@ tedu@
* The 0x (or 0X) prefix in base 16 is optional so only skip over themillert2017-07-066-18/+18
| | | | | | prefix if the character following it is a valid hex char. The C99 standard is clear that given the string "0xy" zero should be returned and endptr set to point to the "x". OK deraadt@ espie@
* void functions don't return 0tb2017-07-051-6/+2
| | | | From Klemens Nanni
* port the RBT code to userland by making it part of libc.dlg2017-06-191-10/+11
| | | | | | | | | | | | | | src/lib/libc/gen/tree.c is a copy of src/sys/kern/subr_tree.c, but with annotations for symbol visibility. changes to one should be reflected in the other. the malloc debug code that uses RB code is ported to RBT. because libc provides the RBT code, procmap doesn't have to reach into the kernel and build subr_tree.c itself now. mild enthusiasm from many ok guenther@
* Don't fall back to heapsort() if we would otherwise switch tomillert2017-05-301-7/+7
| | | | insertion sort (when the number of elements is < 7).
* Support swapping 32-bit aligned elements on 64-bit platforms.millert2017-05-241-22/+63
| | | | | Previously they would be swapped a byte at a time when sizeof(int) != sizeof(long). Idea from FreeBSD.
* Document that qsort falls back to heapsort() if the recursion depthmillert2017-05-201-3/+13
| | | | exceeds 2 lg N and add a reference to the introsort paper.
* Use David Musser's introsort algorithm to fall back to heapsort(3)millert2017-05-202-14/+45
| | | | | | when the recursion depth reaches 2*lg(n + 1). This avoids quicksort's quadratic behavior for pathological input without appreciably changing the average run time.
* The BSD qsort() performs tail recursion elimination on the secondmillert2017-05-171-10/+25
| | | | | | | | side of the array being partitioned to save on stack space. Greater savings can be gained by choosing recursion for the smaller side of the partition and eliminating recursion for the larger side. This also results in a small but measurable performance gain. OK otto@ schwarze@
* Typo: freezeo -> freezerotb2017-05-151-3/+3
| | | | From "fenderq" on freenode via tj@
* - fix bug wrt posix_memalign(3) of blocks between half a page and a pageotto2017-05-132-8/+18
| | | | | - document posix_memalign() does not play nice with reacallocarray(3) and freezero(3)
* make the description strings match the codederaadt2017-05-031-10/+10
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* Remove "len < 0" check; len is socklen_t (uint32_t) so can't bemillert2017-04-271-2/+2
| | | | negative. Quiets a warning from clang. OK bluhm@
* Rearrange text a bit to make it clear what "discarded" means; ok jmc@ deraadt@otto2017-04-231-8/+13
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* For small allocations (chunk) freezero only validates the givenotto2017-04-221-5/+10
| | | | | | | | size if canaries are enabled. In that case we have the exact requested size of the allocation. But we can at least check the given size against the chunk size if C is not enabled. Plus add some braces so my brain doesn't have to scan for dangling else problems when I see this code.
* Fix previous.visa2017-04-201-2/+2
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* Get TCB address using the RDHWR instruction instead of __get_tcb().visa2017-04-201-4/+5
| | | | | | | | | | | This gives fast access to the address on systems that implement the UserLocal register. TCB caching is still used when running in the single-threaded mode in order not to penalize old systems. The kernel counterpart of this change must be in place before using this diff! With guenther@
* don't forget to fill in canary bytes for posix_memalign(3); reported byotto2017-04-181-1/+4
| | | | and ok jeremy@
* consictently use .Dv NULL and a few other tweaks; ok schwarze@otto2017-04-171-20/+17
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* whitespace fixesotto2017-04-171-14/+14
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* allow clearing less than allocated and document freezero(3) betterotto2017-04-132-13/+26
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* New strstr() implementation from musl libc by Rich Felker. Thismillert2017-04-121-44/+180
| | | | | | | | version uses the two-way string matching algorithm and is faster than the old implementation. With this change, ports that check for strstr having linear complexity time strstr will no longer replace the libc strstr with a private version. OK deraadt@ espie@
* tweak previous;jmc2017-04-101-4/+4
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* Introducing freezero(3) a version of free that guarantees the processotto2017-04-102-36/+130
| | | | | | no longer has access to the content of a memmory object. It does this by either clearing (if the object memory remains cached) or by calling munmap(2). ok millert@, deraadt@, guenther@
* Consistentcy between nmembers and size order. From Christopher Hettrick;otto2017-04-061-8/+8
| | | | ok deraadt@
* first print size in meta-data then supplied arg size when an inconsistency isotto2017-04-061-3/+3
| | | | detected wrt recallocarray()
* rephrase more enumerations of functionsotto2017-03-291-13/+10
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* small cleanup & optimization; ok deraadt@ millert@otto2017-03-281-2/+5
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* Stop enumeration all allocation functions, just say "allocation functions"libressl-v2.5.2otto2017-03-261-32/+13
| | | | ok jmc@ deraadt@
* add a helper function to print all pools #ifdef MALLOC_STATSotto2017-03-241-1/+16
| | | | from David CARLIER
* document new recallocarray diagnostic; zap a few diagnostics that shouldotto2017-03-241-8/+9
| | | | never occur
* move recallocarray to malloc.c andotto2017-03-242-19/+207
| | | | | | | - use internal meta-data to do more consistency checking (especially with option C) - use cheap free if possible ok deraadt@
* remove unneccessary macro;jmc2017-03-171-2/+2
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* Strengthen description of recallocarray(3) behaviour, hoping that readersderaadt2017-03-171-5/+10
| | | | | make the behaviour -> use case connection. help from jmc and jsing
* Some tweaks from jmc@ and describe better what recallocarray does;otto2017-03-071-7/+16
| | | | help and ok from tom@ and deraadt@
* Introducing recallocarray(3), a blend of calloc(3) and reallocarray(3)otto2017-03-063-7/+147
| | | | | with the added feature that released memory is cleared. Much input from various developers. ok deraadt@ tom@
* size is unsigned so using ==0 not <=0 when checking for buffer exhaustionmillert2017-03-061-4/+4
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* Pull in a change from the bind 8 resolver that fixes a potentialmillert2017-03-061-10/+16
| | | | | crash when given a large hex number as part of the dotted quad. OK deraadt@ jsg@
* Add support for RES_USE_DNSSECjca2017-02-271-5/+2
| | | | | | | | | | | | RES_USE_DNSSEC is implemented by setting the DNSSEC DO bit in outgoing queries. The resolver is then supposed to set the AD bit in the reply if it managed to validate the answer through DNSSEC. Useful when the application doesn't implement validation internally. This scheme assumes that the validating resolver is trusted and that the communication channel between the validating resolver and and the client is secure. ok eric@ gilles@
* Add EDNS0 support.jca2017-02-181-4/+3
| | | | | | | EDNS allows for various DNS extensions, among which UDP DNS packets size bigger than 512 bytes. The default is still to not advertize anything. ok eric@
* Add a NULL test to wrterror() to avoid a NULL deref when called from ajsg2017-02-151-2/+2
| | | | | | free() error path. ok otto@
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