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authorRob Landley <rob@landley.net>2014-05-21 07:24:16 -0500
committerRob Landley <rob@landley.net>2014-05-21 07:24:16 -0500
commit1bc522424f6bb21842366ccd11953136436b684b (patch)
treea65e3b53e4b39c9b7700110d388346beae8c248f /lib/lib.c
parent9b4158c09cdb766369c45dd2dbc44556d0892694 (diff)
downloadtoybox-1bc522424f6bb21842366ccd11953136436b684b.tar.gz
Add generic_signal() handler, which sets toys.signal and writes byte to toys.signalfd if set.
Diffstat (limited to 'lib/lib.c')
-rw-r--r--lib/lib.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/lib/lib.c b/lib/lib.c
index 1ab80351..bbe8f33c 100644
--- a/lib/lib.c
+++ b/lib/lib.c
@@ -614,12 +614,24 @@ static struct signame signames[] = {
// not in posix: SIGNIFY(STKFLT), SIGNIFY(WINCH), SIGNIFY(IO), SIGNIFY(PWR)
// obsolete: SIGNIFY(PROF) SIGNIFY(POLL)
+// Handler that sets toys.signal, and writes to toys.signalfd if set
+void generic_signal(int sig)
+{
+ if (toys.signalfd) {
+ char c = sig;
+
+ writeall(toys.signalfd, &c, 1);
+ }
+ toys.signal = sig;
+}
+
// Install the same handler on every signal that defaults to killing the process
void sigatexit(void *handler)
{
int i;
for (i=0; signames[i].num != SIGCHLD; i++) signal(signames[i].num, handler);
}
+
// Convert name to signal number. If name == NULL print names.
int sig_to_num(char *pidstr)
{