Jilles Tjoelker 1794251add sh: Fix EINTR race condition in "wait" and "set -T" using sigsuspend(). ... When waiting for child processes using "wait" or if "set -T" is in effect, a signal interrupts the wait. Make sure there is no window where the signal handler may be invoked (setting a flag) just before going to sleep. There is a similar race condition in the shell language, but scripts can avoid it by exiting from the trap handler or enforcing synchronization using a fifo. If SIGCHLD is not trapped, a signal handler must be installed for it. Only install this handler for the duration of the wait to avoid triggering unexpected [EINTR] errors elsewhere. Note that for some reason only SIGINT and SIGQUIT interrupt a "wait" command. This remains the case.		2012-07-29 18:04:38 +00:00
..
bltin	sh: Fix duplicate prototypes for builtins.	2011-06-13 21:03:27 +00:00
funcs	sh: Remove "kill" example function, which is superseded by the kill builtin	2012-01-21 20:39:17 +00:00
alias.c	sh: Fix duplicate prototypes for builtins.	2011-06-13 21:03:27 +00:00
alias.h	sh: Fix duplicate prototypes for builtins.	2011-06-13 21:03:27 +00:00
arith_yacc.c	Add prototypes, ANSIfy functions definitions to reduce WARNS=6 output.	2012-01-25 08:42:19 +00:00
arith_yacc.h	sh: Import arithmetic expression code from dash.	2011-02-08 23:18:06 +00:00
arith_yylex.c	Add prototypes, ANSIfy functions definitions to reduce WARNS=6 output.	2012-01-25 08:42:19 +00:00
arith.h	sh: Fix duplicate prototypes for builtins.	2011-06-13 21:03:27 +00:00
builtins.def	sh: Remove the "exp" builtin.	2011-05-27 20:53:07 +00:00
cd.c	sh: Properly show "Not a directory" error in cd builtin.	2012-01-13 23:32:27 +00:00
cd.h	sh: Fix duplicate prototypes for builtins.	2011-06-13 21:03:27 +00:00
error.c	sh: Add a function to print warnings (with command name and newline).	2010-12-21 20:47:06 +00:00
error.h	sh: Allow EV_EXIT through function calls, make {...} <redir more consistent.	2011-04-23 22:28:56 +00:00
eval.c	sh: Expand assignment-like words specially for export/readonly/local.	2012-07-15 10:19:43 +00:00
eval.h	sh: Fix execution of multiple statements in a trap when evalskip is set	2012-01-16 11:07:46 +00:00
exec.c	sh: Expand assignment-like words specially for export/readonly/local.	2012-07-15 10:19:43 +00:00
exec.h	sh: Expand assignment-like words specially for export/readonly/local.	2012-07-15 10:19:43 +00:00
expand.c	sh: Make various functions static.	2012-01-01 22:17:12 +00:00
expand.h	sh: Make various functions static.	2012-01-01 22:17:12 +00:00
histedit.c	Add prototypes, ANSIfy functions definitions to reduce WARNS=6 output.	2012-01-25 08:42:19 +00:00
init.h	sh: Remove special code for shell scripts without magic number.	2011-02-04 22:47:55 +00:00
input.c	Merge libedit adjustment from NetBSD.	2012-07-11 22:17:58 +00:00
input.h	sh: Make various functions static.	2012-01-01 22:17:12 +00:00
jobs.c	sh: Fix EINTR race condition in "wait" and "set -T" using sigsuspend().	2012-07-29 18:04:38 +00:00
jobs.h	sh: Remove unused variable in_dowait.	2012-07-15 10:49:16 +00:00
mail.c	Consistently use "STATIC" for all functions in order to be able to set	2010-10-13 04:01:01 +00:00
mail.h
main.c	sh: Make various functions static.	2012-01-01 22:17:12 +00:00
main.h	sh: Make various functions static.	2012-01-01 22:17:12 +00:00
Makefile	Work better with how make/bmake works:	2012-05-24 19:48:15 +00:00
memalloc.c	sh: Follow-up to r216743, grabstackblock() can be replaced with stalloc().	2011-01-09 22:47:58 +00:00
memalloc.h	sh: Follow-up to r216743, grabstackblock() can be replaced with stalloc().	2011-01-09 22:47:58 +00:00
miscbltin.c	sh: Remove an unused header.	2012-05-15 22:50:47 +00:00
mkbuiltins	Work better with how make/bmake works:	2012-05-24 19:48:15 +00:00
mkinit.c	Remove duplicated header files	2011-06-24 07:29:04 +00:00
mknodes.c
mksyntax.c	sh: Allow quoting ^ and ] in bracket expressions.	2011-12-28 23:51:17 +00:00
mktokens	sh: Add case statement fallthrough (with ';&' instead of ';;').	2011-06-17 13:03:49 +00:00
myhistedit.h	sh: Make various functions static.	2012-01-01 22:17:12 +00:00
mystring.c	sh: Remove unused function scopyn().	2012-01-01 22:15:38 +00:00
mystring.h	sh: Remove unused function scopyn().	2012-01-01 22:15:38 +00:00
nodes.c.pat	In the spirit of r90111, depend on c89 and remove the "STATIC" macro	2010-10-13 22:18:03 +00:00
nodetypes	sh: Remove special support for background simple commands.	2011-06-18 23:58:59 +00:00
options.c	sh: Allow unsetting OPTIND.	2011-11-20 21:48:50 +00:00
options.h	sh: Add do-nothing -h option.	2011-06-18 23:43:28 +00:00
output.c	sh: Use vsnprintf() rather than crafting our own in fmtstr().	2010-12-11 17:47:27 +00:00
output.h	sh: Code size optimizations to buffered output.	2010-11-20 14:14:52 +00:00
parser.c	sh: Remove special support for background simple commands.	2011-06-18 23:58:59 +00:00
parser.h	sh: Do parameter expansion before printing PS4 (set -x).	2011-06-09 23:12:23 +00:00
redir.c	sh: Remove special code for shell scripts without magic number.	2011-02-04 22:47:55 +00:00
redir.h
sh.1	sh: Expand assignment-like words specially for export/readonly/local.	2012-07-15 10:19:43 +00:00
shell.h	sh: Detect dividing the smallest integer by -1.	2011-02-12 23:44:05 +00:00
show.c	In the spirit of r90111, depend on c89 and remove the "STATIC" macro	2010-10-13 22:18:03 +00:00
show.h	sh: Constify various strings.	2009-12-24 18:41:14 +00:00
TOUR	sh: Various updates to the TOUR document.	2011-05-27 16:00:37 +00:00
trap.c	sh: Fix EINTR race condition in "wait" and "set -T" using sigsuspend().	2012-07-29 18:04:38 +00:00
trap.h	sh: Fix EINTR race condition in "wait" and "set -T" using sigsuspend().	2012-07-29 18:04:38 +00:00
var.c	sh: Fix swapped INTON/INTOFF.	2012-02-04 23:29:07 +00:00
var.h	sh: Use vfork in a few common cases.	2012-02-04 23:12:14 +00:00