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author | Jim Meyering <jim@meyering.net> | 2002-11-10 20:15:54 +0000 |
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committer | Jim Meyering <jim@meyering.net> | 2002-11-10 20:15:54 +0000 |
commit | f549fc269c27d5cde120aa4880d39b850b0dc97d (patch) | |
tree | 6193e92d88f3609cb2cc92225c094436987f5c61 | |
parent | 7acacbf29a946ea9116e99a2c24de38e4e85cfb2 (diff) | |
download | coreutils-f549fc269c27d5cde120aa4880d39b850b0dc97d.tar.xz |
(sighandler): Handle SIGTSTP specially.
Based on suggestions from Solar Designer and Dmitry V. Levin.
Add comments.
-rw-r--r-- | src/ls.c | 26 |
1 files changed, 18 insertions, 8 deletions
@@ -1004,6 +1004,8 @@ restore_default_color (void) put_indicator_direct (&color_indicator[C_RIGHT]); } +/* Upon interrupt, suspend, hangup, etc. ensure that the + terminal text color is restored to the default. */ static void sighandler (int sig) { @@ -1013,18 +1015,26 @@ sighandler (int sig) restore_default_color (); + /* SIGTSTP is special, since the application can receive that signal more + than once. In this case, don't set the signal handler to the default. + Instead, just raise the uncatchable SIGSTOP. */ + if (sig == SIGTSTP) + { + sig = SIGSTOP; + } + else + { #ifdef SA_NOCLDSTOP - { - struct sigaction sigact; + struct sigaction sigact; - sigact.sa_handler = SIG_DFL; - sigemptyset (&sigact.sa_mask); - sigact.sa_flags = 0; - sigaction (sig, &sigact, NULL); - } + sigact.sa_handler = SIG_DFL; + sigemptyset (&sigact.sa_mask); + sigact.sa_flags = 0; + sigaction (sig, &sigact, NULL); #else - signal (sig, SIG_DFL); + signal (sig, SIG_DFL); #endif + } raise (sig); } |