Changes in exec.c

4600b569 - sh: Don't treat % specially in CDPATH

Sun, 15 Jul 2018 21:55:17 +0000

sh: Don't treat % specially in CDPATH List of files: /freebsd-12.1/bin/sh/exec.c

b9807277 - sh: Update TOUR and comments for some code changes, some of them old.

Sat, 06 May 2017 13:28:42 +0000

sh: Update TOUR and comments for some code changes, some of them old.Also, improve some terminology in TOUR and comments. List of files: /freebsd-12.1/bin/sh/exec.c

fbbd9655 - Renumber copyright clause 4

Tue, 28 Feb 2017 23:42:47 +0000

Renumber copyright clause 4Renumber cluase 4 to 3, per what everybody else did when BSD grantedthem permission to remove clause 3. My insistance on keeping the samenumbering for legal reasons is too pedantic, so give up on that point.Submitted by: Jan Schaumann Pull Request: https://github.com/freebsd/freebsd/pull/96 List of files: /freebsd-12.1/bin/sh/exec.c

7d980385 - sh: Fix copying uninitialized field 'special'.

Sun, 13 Mar 2016 22:54:14 +0000

sh: Fix copying uninitialized field 'special'.This just copied uninitialized data and did not depend on it later, so itshould not be dangerous.Found by: clang static analyzer List of files: /freebsd-12.1/bin/sh/exec.c

d3fa2c78 - sh: Reduce size of builtins table.

Sun, 03 Jan 2016 21:30:22 +0000

sh: Reduce size of builtins table. List of files: /freebsd-12.1/bin/sh/exec.c

c3c85727 - sh: Fix some arithmetic undefined behaviour.

Wed, 24 Jun 2015 20:51:48 +0000

sh: Fix some arithmetic undefined behaviour.Fix shifts of possibly negative numbers found with ubsan and avoid signedinteger overflow when hashing an extremely long command name.MFC after: 1 week List of files: /freebsd-12.1/bin/sh/exec.c

e61ae4ff - sh: Remove prefix() function. Use strncmp() instead.

Sun, 20 Jul 2014 12:06:52 +0000

sh: Remove prefix() function. Use strncmp() instead. List of files: /freebsd-12.1/bin/sh/exec.c

2ceda702 - sh: Simplify find_command() slightly.

Sat, 31 May 2014 22:25:45 +0000

sh: Simplify find_command() slightly. List of files: /freebsd-12.1/bin/sh/exec.c

1632bf1a - sh: Fix possible memory leaks and double frees with unexpected SIGINT.

Wed, 26 Mar 2014 20:43:40 +0000

sh: Fix possible memory leaks and double frees with unexpected SIGINT. List of files: /freebsd-12.1/bin/sh/exec.c

670dd3f0 - sh: Prefer memcpy() to strcpy() in most cases. Remove the scopy macro.

Sat, 30 Nov 2013 21:27:11 +0000

sh: Prefer memcpy() to strcpy() in most cases. Remove the scopy macro. List of files: /freebsd-12.1/bin/sh/exec.c

5d4d10e3 - sh: Properly quote alias output from command -v.

Sun, 10 Nov 2013 23:00:39 +0000

sh: Properly quote alias output from command -v.An alias should be printed by command -v as a command line; therefore, makethe alias definition suitable for re-input to the shell. List of files: /freebsd-12.1/bin/sh/exec.c

65519ccb - sh: Recognize "--" as end of options in type builtin.

Fri, 30 Aug 2013 12:09:59 +0000

sh: Recognize "--" as end of options in type builtin.This implementation makes minimal changes: command names starting with "-"(other than "--") can still be queried normally. List of files: /freebsd-12.1/bin/sh/exec.c

338b821b - sh: Remove mkinit.

Thu, 25 Jul 2013 15:08:41 +0000

sh: Remove mkinit.Replace the RESET blocks with regular functions and a reset() function thatcalls them all.This code generation tool is unusual and does not appear to provide muchbenefit. I do not think isolating the knowledge about which modules need tobe reset is worth an almost 500-line build tool and wider scope forvariables used by the reset functions.Also, relying on reset functions is often wrong: the cleanup should be donein exception handlers so that no stale state remains after 'command eval'and the like. List of files: /freebsd-12.1/bin/sh/exec.c

46c6b52d - sh: Fix various compiler warnings.

Mon, 01 Apr 2013 17:18:22 +0000

sh: Fix various compiler warnings.It now passes WARNS=7 with clang on i386.GCC 4.2.1 does not understand setjmp() properly so will always trigger-Wuninitialized. I will not add the volatile keywords to suppress this. List of files: /freebsd-12.1/bin/sh/exec.c

523646ee - sh: Simplify cd-hash interaction.

Mon, 14 Jan 2013 16:40:50 +0000

sh: Simplify cd-hash interaction.Instead of rechecking relative paths for all hashed utilities after a cd,track if any utility in cmdtable depends on a relative path in PATH.If there is such a utility, cd clears the entire table.As a result, the '*' in hash no longer happens. List of files: /freebsd-12.1/bin/sh/exec.c

d172408c - sh: Change cmdtype in tblentry from short to signed char.

Mon, 05 Nov 2012 17:52:18 +0000

sh: Change cmdtype in tblentry from short to signed char.If this is a smaller type than int anyway, we can make it the smallestpossible. List of files: /freebsd-12.1/bin/sh/exec.c

422c281c - sh: Use C99 flexible array instead of accessing array beyond bounds.

Sat, 03 Nov 2012 22:23:08 +0000

sh: Use C99 flexible array instead of accessing array beyond bounds.Although sufficient memory is available for a longer string in cmdname,this is undefined behaviour anyway.Side effect: for alignment reasons, an additional byte of memory isallocated per hashed command. List of files: /freebsd-12.1/bin/sh/exec.c

84fbdd8c - sh: Expand assignment-like words specially for export/readonly/local.

Sun, 15 Jul 2012 10:19:43 +0000

sh: Expand assignment-like words specially for export/readonly/local.Examples: export x=~now expands the tilde local y=$1is now safe, even if $1 contains IFS characters or metacharacters.For a word to "look like an assignment", it must start with a name followedby an equals sign, none of which may be quoted.The special treatment applies when the first word (potentially after"command") is "export", "readonly" or "local". There may be quotingcharacters but no expansions. If "local" is overridden with a function thereis no special treatment ("export" and "readonly" cannot be overridden with afunction).If things like local arr=(1 2 3)are ever allowed in the future, they cannot call a "local" function. Thiswould either be a run-time error or it would call the builtin.This matches Austin Group bug #351, planned for the next issue of POSIX.1.PR: bin/166771 List of files: /freebsd-12.1/bin/sh/exec.c

f6d21b6e - MFC r196483,r196634:

Sun, 11 Oct 2009 16:35:12 +0000

MFC r196483,r196634:sh: Fix crash when undefining or redefining a currently executing functionAdd a reference count to function definitions.Memory may leak if a SIGINT arrives in interactive mode at exactly the wrongtime, this will be fixed later by changing SIGINT handling.PR: bin/137640Approved by: re (kib) List of files: /freebsd-12.1/bin/sh/exec.c

c0b3cf06 - sh: Make 'hash' return 1 if at least one utility is not found.

Sat, 11 Feb 2012 21:06:45 +0000

sh: Make 'hash' return 1 if at least one utility is not found.Reported by: lme List of files: /freebsd-12.1/bin/sh/exec.c