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2fc66e15eb194ca1e54cd4df7f54bfdc3c87a3cd
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Author SHA1 Message Date
Simon Ruderich
2fc66e15eb Improve checks for invalid file descriptors. 
Just in case a real dup*() or fcntl() doesn't return -1 on error, but
something like -2.
 2013-06-21 23:03:12 +02:00
Simon Ruderich
219a9882ba tests: Check return values of write() and dup2(). 2013-06-21 23:03:12 +02:00
Simon Ruderich
0d7f306898 Overwrite tracked file descriptors when exporting COLORED_STDERR_FDS. 
If the list of tracked file descriptors is modified to contain unwanted
values (e.g. when a parent process closes or redirects stderr), this
makes it possible to set the tracked file descriptors back to a given
list.

This problem occurred with startx which somehow closes or redirects
stderr. As COLORED_STDERR_FDS was set in the shell running startx, this
disabled coloring stderr for all processes started in the X11 session.

This is no longer an issue. As COLORED_STDERR_FDS is set in the shell
configuration file, it automatically sets the list to the correct value
when a shell is opened in the terminal emulator once X11 is running.
 2013-06-21 23:03:12 +02:00
Simon Ruderich
045ca46e79 Hook __swbuf() on FreeBSD. 
Coloring works fine now on FreeBSD (with some minor issues). Tests still
fail though.
 2013-06-20 23:33:27 +02:00
Simon Ruderich
ba2283bd37 Remove invalid assert() in tracked_fds_find(). 2013-06-20 23:17:03 +02:00
Simon Ruderich
f3c734eb7d configure.ac: Check if __overflow() is available. 2013-06-20 22:14:42 +02:00
Simon Ruderich
b0c02291be Hook __overflow() correctly. 
It takes a FILE * and must be hooked with HOOK_FILE*().
 2013-06-20 22:13:04 +02:00
Simon Ruderich
d78910e363 tests/Makefile.am: Remove unnecessary *_SOURCES variables. 
They are only required if more than one source file (or one with a
different name) is used.
 2013-06-20 22:02:30 +02:00
Simon Ruderich
4eb55ac071 {fwrite,fputs,fputc}_unlocked() are not in POSIX. 
Define fwrite_unlocked(), fputs_unlocked() and fputc_unlocked() only if
they are available on the system.
 2013-06-20 20:56:51 +02:00
Simon Ruderich
1fb32dbd84 tests: Remove test_symbols.sh. 
It's useless as different systems provide/require different symbols.
Will be replaced by a better test.
 2013-06-20 20:46:06 +02:00
Simon Ruderich
cfad8a624c Update documentation. 2013-06-18 00:07:03 +02:00
Simon Ruderich
85699d0263 tests/example.c: Use errno = ENOMEM. 
The output from errno = 0 is less portable.
 2013-06-17 23:28:07 +02:00
Simon Ruderich
a63fef43c2 Add missing #include <sys/stat.h>. 2013-06-17 23:26:00 +02:00
Simon Ruderich
50a495887f README: setuid binaries are not supported. 2013-06-15 16:53:47 +02:00
Simon Ruderich
34b3b93136 tests/example_error.c: Fix typo in function name. 2013-06-15 03:41:06 +02:00
Simon Ruderich
a58d1a9017 Mark hooked functions as visibility(("protected")). 2013-06-15 03:36:50 +02:00
Simon Ruderich
ca12529c8f hookmacros.h: Reduce duplication in macros. 
Also preparation to add attributes to function declarations.
 2013-06-15 03:23:53 +02:00
Simon Ruderich
941370dda9 Hook BSD err(), errx(), warn(), warnx(), etc. functions. 
err(), errx(), warn(), warnx(), verr(), verrx(), vwarn(), vwarnx() are
hooked.
 2013-06-15 02:39:52 +02:00
Simon Ruderich
1068648718 Minor documentation update. 2013-06-15 02:21:27 +02:00
Simon Ruderich
0a909cac79 Use locally defined functions in hooks where possible. 
Don't create a hook and call the "real" function when it's enough to
call an existing hook for this function.
 2013-06-15 01:58:36 +02:00
Simon Ruderich
217e8c8bc5 Define real_*() static variables with macros. 2013-06-15 00:54:46 +02:00
Simon Ruderich
9507e0f60d configure.ac: Fix Vim's syntax coloring issue with `..'. 2013-06-14 21:24:53 +02:00
Simon Ruderich
6ae629bef0 tests/Makefile.am: Enable parallel and colored test runs. 
Necessary for automake < 1.13.
 2013-06-14 21:24:53 +02:00
Simon Ruderich
18d52b3b5a Install libcoloredstderr.so read-only. 
Prevents accidental truncates of libcoloredstderr.so with `cp` which
crash all programs which have loaded it.
 2013-06-14 13:40:06 +02:00
Simon Ruderich
dcaadb5f7c README: Explain how to modify pre/post variables. 2013-06-14 12:44:34 +02:00
Simon Ruderich
04334418fc README: Add first part of installation instructions. 2013-06-14 11:07:40 +02:00
Simon Ruderich
208757de88 .gitignore: Ignore generated test files. 
Forgotten in d8be625da9 and
59375c2b79.
 2013-06-13 22:43:43 +02:00
Simon Ruderich
d5b84811d2 tests/lib.sh: Fix tests for dash. 2013-06-13 22:35:42 +02:00
Simon Ruderich
1d1b6d7769 Remove duplicate code in init_from_environment(). 2013-06-13 22:15:49 +02:00
Simon Ruderich
45d25526c0 Minor documentation updates. 2013-06-13 22:15:09 +02:00
Simon Ruderich
3d46e3ab9b Add missing const and document where it can't be used. 2013-06-13 22:13:16 +02:00
Simon Ruderich
3c2b4bf9f6 tests/lib.sh: Minor cleanup. 2013-06-13 22:11:15 +02:00
Simon Ruderich
59375c2b79 Fix possible memory overwrite in init_from_environment(). 
It was possible for a user to overwrite memory at a relative location
with 1 by passing a negative file descriptor.
 2013-06-13 22:08:08 +02:00
Simon Ruderich
f30dbbd26d Add more error checks. 2013-06-13 21:56:50 +02:00
Simon Ruderich
e5a94fa847 Remove unnecessary calls to update_environment() in exec*(). 2013-06-13 21:50:51 +02:00
Simon Ruderich
1e02760898 constants.h: Fix indentation. 2013-06-13 21:45:19 +02:00
Simon Ruderich
7eb1667d41 ldpreload.h: Add missing unlikely() in DLSYM_FUNCTION(). 2013-06-13 21:44:55 +02:00
Simon Ruderich
0ad5e4db04 hookmacros.h: Remove duplication in _HOOK_PRE_FD_/_HOOK_PRE_FILE. 2013-06-13 21:44:55 +02:00
Simon Ruderich
d171e6bbec trackfds.h: Add missing inline for consistency. 2013-06-13 21:34:29 +02:00
Simon Ruderich
6d6ad4423a Add assert()s. 2013-06-13 21:33:27 +02:00
Simon Ruderich
37cb5686de Handle invalid arguments to close()/fclose() better. 2013-06-13 21:19:15 +02:00
Simon Ruderich
7adfbfd2cf Fix hook for putc_unlocked() with glibc. 
putc_unlocked() is a macro which expands to __overflow() in some cases.
 2013-06-13 12:59:12 +02:00
Simon Ruderich
d8be625da9 tests/test_symbols.sh: Add. 2013-06-13 02:32:27 +02:00
Simon Ruderich
5e8be10581 tests/Makefile.am: Sort dist_check_DATA. 2013-06-13 02:29:55 +02:00
Simon Ruderich
e954d0fdfd configure.ac: fcntl.h is required. 2013-06-13 02:25:58 +02:00
Simon Ruderich
52b4e91146 hookmacros.h: Minor style fix. 2013-06-13 01:27:45 +02:00
Simon Ruderich
04ac66863a tests: Split run.sh in multiple test files. 
Allows parallel test runs and simplifies optional tests.
 2013-06-13 01:26:25 +02:00
Simon Ruderich
05aefe25ba tests: Rename example-* to example_* for consistency. 2013-06-13 01:05:06 +02:00
Simon Ruderich
8a58e07a5b tests: Fix tests when running under coloredstderr. 2013-06-10 22:49:58 +02:00
Simon Ruderich
b24bd8dc43 README: Add. 2013-06-10 22:33:59 +02:00