skalibs/src/libstddjb, branch v2.9.3.0The skarnet.org C programming libraryhttps://git.skarnet.org/cgit/skalibs/atom/src/libstddjb?h=v2.9.3.02020-09-17T23:31:28Z Add stralloc_readyplus_tuned, fix overflow on stralloc_readyplus2020-09-17T23:31:28ZLaurent Bercotska-skaware@skarnet.org2020-09-17T23:31:28Zurn:sha1:24f08a61e6456fb2bdf1382000a0b4b3bf910d45 Fix alloc_realloc UB2020-04-29T19:08:19ZLaurent Bercotska-skaware@skarnet.org2020-04-29T19:08:19Zurn:sha1:038082c425c40037a28111934dfb5037edbcad8c
void ** does not exist: the address of a generic pointer is not
properly defined (different pointer types may have different
representations). So, alloc_realloc cannot exist as is without UB.
Fortunately, it's not supposed to be used in the skalibs programming
style, and skalibs itself only uses it in two places
(stralloc_ready_tuned and stralloc_shrink) where the pointer is a
char *.
So we just fix the UB by making alloc_realloc() take a char **,
and it's only defined for that pointer type.
Nothing to see here folks, nothing happened at all.
bugfix: sigprocmask invocation on non-signalfd systems2020-04-04T12:52:31ZLaurent Bercotska-skaware@skarnet.org2020-04-04T12:52:31Zurn:sha1:dd6ebd3d063c1d3caa48cf14ae89d21aa5acf2c3 Explicitly unblock signals when selfpiped without signalfd2020-02-26T17:18:47ZLaurent Bercotska-skaware@skarnet.org2020-02-26T17:18:47Zurn:sha1:37e31f79514acfdff8ede65b73542b7abb1e61a5
This is arguably a bugfix, since selfpipe without signalfd
relies on signals being actually delivered, and a process may
have inherited a nonempty sigprocmask.
Also use SIG_BLOCK instead of SIG_SETMASK when using
selfpipe_trapset() with signalfd, because we shouldn't unblock
signals that may have previously been blocked. This is also
arguably a bugfix.
This commit is essential for using the version of s6-linux-init
that blocks SIGINT before disablecad on kernels without signalfd.
Without it, SIGINT never gets unblocked, so it's never delivered
to s6-svscan.
bugfix: env_merge didn't correctly handle variable removal2020-02-10T19:18:54ZLaurent Bercotska-skaware@skarnet.org2020-02-10T19:18:54Zurn:sha1:dd478a768bce79bcf6c627310e2ddb473667fecc Make sagethostname() work with all glibcs2020-01-30T23:01:10ZLaurent Bercotska-skaware@skarnet.org2020-01-30T23:01:10Zurn:sha1:1c2fb80f178650da370cbf86e994a1d74be82a12 Real fix for undefined PATH_MAX2019-10-20T03:04:05ZLaurent Bercotska-skaware@skarnet.org2019-10-20T03:04:05Zurn:sha1:56c1fdfaf3d415b920aa98ab9d8f7ba2a5509708 Don't rely on the existence of PATH_MAX2019-10-20T02:48:54ZLaurent Bercotska-skaware@skarnet.org2019-10-20T02:48:54Zurn:sha1:e7ea3358ef627675fbd4669516617688a7e3dd94 Fix path_canonicalize()'s returned length when absolute2019-10-10T18:08:36ZLaurent Bercotska-skaware@skarnet.org2019-10-10T18:08:36Zurn:sha1:e9f98a16d7b46332ec4986d890c5d2e26f081cc7 Add path_canonicalize, prepare for 2.9.1.02019-10-09T15:07:23ZLaurent Bercotska-skaware@skarnet.org2019-10-09T15:07:23Zurn:sha1:f5e75663fef044cad02eef3eb7aef295312c1158