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main: prevent crash on sigpipe

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This is commonly caused by a bad program in the output chain, e.g.

wvkbd -O | false
This commit is contained in:
Zach DeCook 2022-01-26 12:03:58 -05:00 committed by Maarten van Gompel
parent f74fe9a182
commit c27f876634
1 changed files with 6 additions and 0 deletions
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6
main.c
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@ -398,6 +398,11 @@ show(int sigint) {
drwsurf_flip(&draw_surf); drwsurf_flip(&draw_surf);
} }
void
pipewarn(int sigint) {
fprintf(stderr, "wvkbd: cannot pipe data out.\n");
}
int int
main(int argc, char **argv) { main(int argc, char **argv) {
/* parse command line arguments */ /* parse command line arguments */
@ -530,6 +535,7 @@ main(int argc, char **argv) {
signal(SIGUSR1, hide); signal(SIGUSR1, hide);
signal(SIGUSR2, show); signal(SIGUSR2, show);
signal(SIGPIPE, pipewarn);
while (run_display) { while (run_display) {
while (wl_display_dispatch(display) != -1 && layer_surface) { while (wl_display_dispatch(display) != -1 && layer_surface) {