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51 Commits
Author SHA1 Message Date
Tobias Brunner 18d73a9a5c utils: Add counterpart to wait_sigint() to explicitly stop waiting 2023-02-22 14:33:34 +01:00
Tobias Brunner 19ef2aec15 Update copyright headers after acquisition by secunet 2022-06-28 10:22:56 +02:00
Tobias Brunner 1b67166921 Unify format of HSR copyright statements 2018-05-23 16:32:53 +02:00
Andreas Steffen b12c53ce77 Use standard unsigned integer types 2016-03-24 18:52:48 +01:00
Tobias Brunner 88b85e022a sigwaitinfo() may fail with EINTR if interrupted by an unblocked signal not in the set 
Fixes #1213.
 2015-11-23 11:37:19 +01:00
Tobias Brunner 5461efe7b9 utils: Use the more low-level __NR_ prefix to refer to the syscall number 
The __NR_ constants are also defined in the Android headers.
 2015-11-17 17:21:36 +01:00
Tobias Brunner ef4279f2e5 utils: Provide a fallback for sigwaitinfo() if needed 
Apparently, not available on Mac OS X 10.10 Yosemite. We don't provide
this on Windows.
 2015-11-13 18:24:45 +01:00
Tobias Brunner 858148092d Replace usages of sigwait(3) with sigwaitinfo(2) 
This is basically the same call, but it has the advantage of being
supported by FreeBSD's valgrind, which sigwait() is not.

References #1106.
 2015-10-29 15:38:37 +01:00
Tobias Brunner 6d9cd1d66b utils: Check for dirfd(3) 
Not all POSIX compatible systems might provide it yet.  If not, we close
the lowest FD to close and hope it gets reused by opendir().
 2015-08-17 11:19:48 +02:00
Tobias Brunner f25f4192c7 utils: Directly use syscall() to close open FDs in closefrom() 
This avoids any allocations, since calling malloc() after fork() is
potentially unsafe.

Fixes #990.
 2015-08-17 11:19:44 +02:00
Tobias Brunner b410d7f8ff utils: Don't use directory enumerator to close open FDs in closefrom() 
Calling malloc() after fork() is potentially unsafe, so we should avoid
it if possible.  opendir() will still require an allocation but that's
less than the variant using the enumerator wrapper, thus, decreasing
the conflict potential.  This way we can also avoid closing the
FD for the enumerated directory itself.

References #990.
 2015-08-17 11:19:32 +02:00
Martin Willi 80e05dc8fd utils: Clean up includes 2015-04-16 14:50:41 +02:00
Martin Willi 04f12ecd29 align: Move min/max/padding/alignment functions to separate files 2015-04-16 14:50:40 +02:00
Martin Willi eaa02bc925 time: Move time related functions to separate files 2015-04-16 14:50:24 +02:00
Martin Willi 1e02eddb72 status: Move status_t type and functions to separate files 2015-04-16 14:50:05 +02:00
Martin Willi 001a22e2c1 path: Move path related utility functions to separate files 2015-04-16 14:50:04 +02:00
Martin Willi 7585a85f1a tty: Move tty related functions to separate files 2015-04-16 14:50:04 +02:00
Martin Willi 7802ab88a1 memory: Move memory manipulation related functions to separate files 2015-04-16 14:50:02 +02:00
Martin Willi bbfe7a80b1 string: Move string related utility functions to separate files 2015-04-16 14:49:19 +02:00
Martin Willi 717313c542 atomics: Move atomics/recounting support to separate files 2015-04-16 14:49:19 +02:00
Martin Willi f206bb7444 utils: Add malloc/free wrappers returning aligned data 
While we could use posix_memalign(3), that is not fully portable. Further, it
might be difficult on some platforms to properly catch it in leak-detective,
which results in invalid free()s when releasing such memory.

We instead use a simple wrapper, which allocates larger data, and saves the
padding size in the allocated header. This requires that memory is released
using a dedicated function.

To reduce the risk of invalid free() when working on corrupted data, we fill up
all the padding with the padding length, and verify it during free_align().
 2015-04-15 13:44:40 +02:00
Martin Willi b833963270 utils: Add a constant time memeq() variant for cryptographic purposes 2015-04-14 11:51:54 +02:00
Martin Willi cab59c73fc windows: Use WINAPI call convention for Windows API callbacks 
For x86_64 it does not actually matter, but for i686 builds the call convention
is different with WINAPI.
 2014-06-06 16:28:28 +02:00
Martin Willi 66c0801dc7 utils: Add a wait_sigint() function to wait for SIGINT or equivalent 2014-06-04 15:53:11 +02:00
Martin Willi 67b3bcd13d utils: Provide a path_absolute() function to check path for non-relativeness 
The usually used trivial '/' check won't work on Windows platforms.
 2014-06-04 15:53:09 +02:00
Martin Willi 2496eaffde utils: Return plain drive letter as base/pathname for drive letters on Windows 2014-06-04 15:53:08 +02:00
Martin Willi 8182631bc3 utils: Support Windows path separators in path_basename/dirname 2014-06-04 15:53:08 +02:00
Martin Willi 4de7401a98 windows: Provide a time_monotonic() based on GetTickCount64() 2014-06-04 15:53:01 +02:00
Martin Willi f1c9653e04 utils: Don't directly depend on pthread 2014-06-04 15:53:00 +02:00
Martin Willi eb94f58595 strerror: Don't directly depend on pthread 2014-06-04 15:53:00 +02:00
Martin Willi 87a79e6a03 windows: Add utils_init/deinit functions to initialize Winsock2 2014-06-04 15:52:59 +02:00
Martin Willi 8f129319ff utils: Printf() defined time output should gmtime/localtime_r() fail 2014-06-04 15:52:58 +02:00
Martin Willi 1f2b8c8c80 printf-hook-builtin: Support Windows console colors using TTY escape codes 2014-06-04 15:52:57 +02:00
Martin Willi d3c30b356c windows: Use _getmaxstdio as replacement for syscall(_SC_OPEN_MAX) 2014-06-03 12:24:35 +02:00
Martin Willi a3f7dfc1ca windows: replace mkdir() with Windows _mkdir() variant 2014-06-03 12:24:35 +02:00
Tobias Brunner 0f603d425d utils: Use GCC's __atomic built-ins if available 
These are available since GCC 4.7 and will eventually replace the __sync
operations.  They support the memory model defined by C++11. For instance,
by using __ATOMIC_RELAXED for some operations on the reference counters we
can avoid memory barriers, which are required by __sync operations (whose
memory model essentially is __ATOMIC_SEQ_CST).
 2014-04-24 17:54:14 +02:00
Tobias Brunner efedd0d21e utils: Add ref_cur() to retrieve the current value of a reference counter 
On many architectures it is safe to read the value directly (those
using cache coherency protocols, and with atomic loads for 32-bit
values) but it is not if that's not the case or if we ever decide to
make refcount_t 64-bit (load not atomic on x86).

So make sure the operation is actually atomic and that users do not
have to care about the size of refcount_t.
 2014-04-24 17:53:42 +02:00
Tobias Brunner 2ed241aeb3 utils: Add memrchr(3) replacement for platforms that don't support it 
For instance, on Mac OS X memrchr(3) is not provided by the C library.
 2014-02-26 11:05:07 +01:00
Tobias Brunner 766141bc77 utils: Add thread-safe variants of dirname(3) and basename(3) 2014-02-24 12:04:11 +01:00
Tobias Brunner ba10cd3c7f utils: Move thread-safe strerror replacement to a separate file 
For some utils _GNU_SOURCE might be needed but that conflicts with the
signature of strerror_r(3).
 2014-02-24 12:04:10 +01:00
Tobias Brunner ccb6758e5b utils: Add strreplace function 2014-01-23 10:18:23 +01:00
Tobias Brunner 13f2d3a2f6 utils: Fix %T printf hook on big-endian systems 
The cast to a bool* cut of the actual value on big-endian systems
if bool was shorter than int because the bool argument to printf gets
promoted to an int.

Fixes #479.
 2014-01-06 15:30:02 +01:00
Martin Willi 9df621d21f utils: Fix check for fmemopen() fallback implementation 2013-10-24 15:58:49 +02:00
Martin Willi 2077d996a9 utils: Provide a fmemopen(3) fallback using BSD funopen() 2013-10-24 13:17:05 +02:00
Martin Willi 3160b92adb utils: ref_get() returns the new value of the reference counter 
This allows us to use ref_get() for getting unique values.
 2013-06-11 15:54:27 +02:00
Tobias Brunner 7b91011d6e Allow memstr() to be called with NULL arguments 2013-06-11 11:03:12 +02:00
Tobias Brunner 438a6693ca Removed unused clalloc() function 2013-06-11 11:03:12 +02:00
Martin Willi 4d17427205 Add a utility function to resolve TTY color escape codes dynamically 2013-03-04 15:04:56 +01:00
Martin Willi 4755ab505d Add a global return_success() method implementation 2013-02-14 17:17:45 +01:00
Andreas Steffen cf29fc075a time is a time_t pointer 2013-02-04 13:05:29 +01:00