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restore SIGCHLD sighandler to default before spawning a program - tabbed - tab … |
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git clone git://git.suckless.org/tabbed |
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commit 97ba13b1eb4756fb1a024fd1e83df6e393befd27 |
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parent 66ef5f33e9987b70e2457c4a459f7ed84184604b |
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Author: Hiltjo Posthuma <[email protected]> |
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Date: Sun, 9 Apr 2023 12:47:07 +0200 |
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restore SIGCHLD sighandler to default before spawning a program |
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From sigaction(2): |
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A child created via fork(2) inherits a copy of its parent's signal dispositions. |
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During an execve(2), the dispositions of handled signals are reset to the defau… |
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the dispositions of ignored signals are left unchanged. |
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This refused to start directly some programs from configuring in config.h: |
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Some reported programs that didn't start were: mpv. |
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Similar to the commit e81f17d4c196aaed6893fd4beed49991caa3e2a4 from dwm. |
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Diffstat: |
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M tabbed.c | 8 ++++++++ |
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1 file changed, 8 insertions(+), 0 deletions(-) |
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--- |
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diff --git a/tabbed.c b/tabbed.c |
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@@ -1088,11 +1088,19 @@ setup(void) |
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void |
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spawn(const Arg *arg) |
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{ |
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+ struct sigaction sa; |
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+ |
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if (fork() == 0) { |
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if(dpy) |
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close(ConnectionNumber(dpy)); |
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setsid(); |
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+ |
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+ sigemptyset(&sa.sa_mask); |
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+ sa.sa_flags = 0; |
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+ sa.sa_handler = SIG_DFL; |
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+ sigaction(SIGCHLD, &sa, NULL); |
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+ |
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if (arg && arg->v) { |
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execvp(((char **)arg->v)[0], (char **)arg->v); |
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fprintf(stderr, "%s: execvp %s", argv0, |
