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* lib: Fix calls that naively set F_SETFD.Ricardo Branco2025-07-171-4/+14
| | | | | | | | | | | With the recent inclusion of the FD_CLOFORK and FD_RESOLVE_BENEATH flags, we must avoid clearing them when setting only FD_CLOEXEC. Signed-off-by: Ricardo Branco <rbranco@suse.de> Reviewed by: kib, markj MFC after: 1 month Pull Request: https://github.com/freebsd/freebsd-src/pull/1766
* lib: Remove ancient SCCS tags.Warner Losh2023-11-271-3/+0
| | | | | | | | Remove ancient SCCS tags from the tree, automated scripting, with two minor fixup to keep things compiling. All the common forms in the tree were removed with a perl script. Sponsored by: Netflix
* libc: Purge unneeded cdefs.hWarner Losh2023-11-011-1/+0
| | | | | | | | | These sys/cdefs.h are not needed. Purge them. They are mostly left-over from the $FreeBSD$ removal. A few in libc are still required for macros that cdefs.h defines. Keep those. Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D42385
* Remove $FreeBSD$: one-line .c patternWarner Losh2023-08-161-2/+0
| | | | Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
* General further adoption of SPDX licensing ID tags.Pedro F. Giffuni2017-11-201-0/+2
| | | | | | | | | | | | | | | | | Mainly focus on files that use BSD 3-Clause license. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point. Notes: svn path=/head/; revision=326025
* Add _flags2 per jhb@ suggestion since no room left in _flags.Andrey A. Chernov2015-10-281-2/+1
| | | | | | | | | Rewrite O_APPEND flag checking using new __S2OAP flag. MFC after: 3 weeks Notes: svn path=/head/; revision=290110
* Since no room left in the _flags, reuse __SALC for O_APPEND.Andrey A. Chernov2015-10-241-1/+4
| | | | | | | | | | It helps to remove _fcntl() call from _ftello() and optimize seek position calculation in _swrite(). MFC after: 3 weeks Notes: svn path=/head/; revision=289863
* libc/stdio: Fail fdopen() on an execute-only fd.Jilles Tjoelker2014-04-211-1/+2
| | | | | | | | | | | | An execute-only fd (opened with O_EXEC) allows neither read() nor write() and is therefore incompatible with all stdio modes. Therefore, the [EINVAL] error applies. Also adjust the similar check in freopen() with a NULL path, even though this checks an fd which is already from a FILE. Notes: svn path=/head/; revision=264737
* Convert libc/stdio from K&R to ANSI CEd Maste2013-04-231-3/+1
| | | | | | | And add '__restrict' where it appeared in the header prototypes Notes: svn path=/head/; revision=249810
* Renumber clauses to reduce diffs to other versionsEd Maste2013-04-231-1/+1
| | | | | | | | | | NetBSD, OpenBSD, and Android's Bionic all number the clauses 1 through 3, so follow suit to make comparison easier. Acked-by: imp@ Notes: svn path=/head/; revision=249808
* libc: Allow setting close-on-exec in fopen/freopen/fdopen.Jilles Tjoelker2012-11-301-0/+6
| | | | | | | | | | | | | | | | | | | | | | This commit adds a new mode option 'e' that must follow any 'b', '+' and/or 'x' options. C11 is clear about the 'x' needing to follow 'b' and/or '+' and that is what we implement; therefore, require a strict position for 'e' as well. For freopen() with a non-NULL path argument and fopen(), the close-on-exec flag is set iff the 'e' mode option is specified. For freopen() with a NULL path argument and fdopen(), the close-on-exec flag is turned on if the 'e' mode option is specified and remains unchanged otherwise. Although the same behaviour for fopen() can be obtained by open(O_CLOEXEC) and fdopen(), this needlessly complicates the calling code. Apart from the ordering requirement, the new option matches glibc. PR: kern/169320 Notes: svn path=/head/; revision=243731
* Remove useless call to getdtablesize(2) in fdopen(3) and its uselessAntoine Brodin2008-05-101-4/+0
| | | | | | | | | | | | variable nofile. PR: 123109 Submitted by: Christoph Mallon Approved by: rwatson (mentor) MFC after: 1 month Notes: svn path=/head/; revision=178921
* Add <limits.h> for SHRT_MAX.John Baldwin2008-02-271-0/+1
| | | | | | | Pointy hat to: jhb Notes: svn path=/head/; revision=176629
* File descriptors are an int, but our stdio FILE object uses a short to holdJohn Baldwin2008-02-271-0/+12
| | | | | | | | | | | | | | | | | | | | them. Thus, any fd whose value is greater than SHRT_MAX is handled incorrectly (the short value is sign-extended when converted to an int). An unpleasant side effect is that if fopen() opens a file and gets a backing fd that is greater than SHRT_MAX, fclose() will fail and the file descriptor will be leaked. Better handle this by fixing fopen(), fdopen(), and freopen() to fail attempts to use a fd greater than SHRT_MAX with EMFILE. At some point in the future we should look at expanding the file descriptor in FILE to an int, but that is a bit complicated due to ABI issues. MFC after: 1 week Discussed on: arch Reviewed by: wollman Notes: svn path=/head/; revision=176628
* Per Regents of the University of Calfornia letter, remove advertisingWarner Losh2007-01-091-4/+0
| | | | | | | | | clause. # If I've done so improperly on a file, please let me know. Notes: svn path=/head/; revision=165903
* Fix the style of the SCM ID's.David E. O'Brien2002-03-221-2/+2
| | | | | | | I believe have made all of libc .c's as consistent as possible. Notes: svn path=/head/; revision=92986
* Remove 'register' keyword.David E. O'Brien2002-03-211-1/+1
| | | | Notes: svn path=/head/; revision=92889
* Move all stdio internal flags processing and setting out of __sread(),Andrey A. Chernov2001-09-021-2/+2
| | | | | | | | | | | | | __swrite() and __sseek() to higher level. According to funopen(3) they all are just wrappers to something like standard read(2), write(2) and lseek(2), i.e. must not touch stdio internals because they are replaceable with any other functions knows nothing about stdio internals. See example of funopen(3) usage in sendmail sources f.e. NOTE: this is original stdio bug, not result of my range checkin added. Notes: svn path=/head/; revision=82807
* Remove _THREAD_SAFE and make libc thread-safe by default byDaniel Eischen2001-01-241-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | adding (weak definitions to) stubs for some of the pthread functions. If the threads library is linked in, the real pthread functions will pulled in. Use the following convention for system calls wrapped by the threads library: __sys_foo - actual system call _foo - weak definition to __sys_foo foo - weak definition to __sys_foo Change all libc uses of system calls wrapped by the threads library from foo to _foo. In order to define the prototypes for _foo(), we introduce namespace.h and un-namespace.h (suggested by bde). All files that need to reference these system calls, should include namespace.h before any standard includes, then include un-namespace.h after the standard includes and before any local includes. <db.h> is an exception and shouldn't be included in between namespace.h and un-namespace.h namespace.h will define foo to _foo, and un-namespace.h will undefine foo. Try to eliminate some of the recursive calls to MT-safe functions in libc/stdio in preparation for adding a mutex to FILE. We have recursive mutexes, but would like to avoid using them if possible. Remove uneeded includes of <errno.h> from a few files. Add $FreeBSD$ to a few files in order to pass commitprep. Approved by: -arch Notes: svn path=/head/; revision=71579
* Simplify sytem call renaming. Instead of _foo() <-- _libc_foo <-- foo(),Jason Evans2000-01-271-1/+1
| | | | | | | | | | | | | | | | | | | | just use _foo() <-- foo(). In the case of a libpthread that doesn't do call conversion (such as linuxthreads and our upcoming libpthread), this is adequate. In the case of libc_r, we still need three names, which are now _thread_sys_foo() <-- _foo() <-- foo(). Convert all internal libc usage of: aio_suspend(), close(), fsync(), msync(), nanosleep(), open(), fcntl(), read(), and write() to _foo() instead of foo(). Remove all internal libc usage of: creat(), pause(), sleep(), system(), tcdrain(), wait(), and waitpid(). Make thread cancellation fully POSIX-compliant. Suggested by: deischen Notes: svn path=/head/; revision=56698
* Add three-tier symbol naming in support of POSIX thread cancellationJason Evans2000-01-121-1/+3
| | | | | | | | | points. For library functions, the pattern is __sleep() <-- _libc_sleep() <-- sleep(). The arrows represent weak aliases. For system calls, the pattern is _read() <-- _libc_read() <-- read(). Notes: svn path=/head/; revision=55837
* BSD 4.4 Lite Lib SourcesRodney W. Grimes1994-05-271-0/+89
Notes: svn path=/cvs2svn/branches/unlabeled-1.1.1/; revision=1573
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