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Overwrite tracked file descriptors when exporting COLORED_STDERR_FDS.

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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.
This commit is contained in:
Simon Ruderich
2013-06-21 18:26:23 +02:00
parent 045ca46e79
commit 0d7f306898
8 changed files with 160 additions and 59 deletions
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1
src/constants.h
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@@ -25,6 +25,7 @@
#define ENV_NAME_PRE_STRING "COLORED_STDERR_PRE"
#define ENV_NAME_POST_STRING "COLORED_STDERR_POST"
#define ENV_NAME_FORCE_WRITE "COLORED_STDERR_FORCE_WRITE"
#define ENV_NAME_PRIVATE_FDS "COLORED_STDERR_PRIVATE_FDS"
/* Strings written before/after each matched function. */
#define DEFAULT_PRE_STRING "\033[91m"