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ptty: wait for corrent child pid - scroll - scrollbackbuffer program for st |
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git clone git://git.suckless.org/scroll |
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--- |
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commit 3fc721d074811416f4024976c472ddc396c4f00d |
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parent e96f0b9671d12a6977225ea22f7edf455331aa6e |
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Author: Jan Klemkow <[email protected]> |
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Date: Thu, 16 Apr 2020 22:34:15 +0200 |
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ptty: wait for corrent child pid |
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Diffstat: |
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M ptty.c | 9 ++++++--- |
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1 file changed, 6 insertions(+), 3 deletions(-) |
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--- |
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diff --git a/ptty.c b/ptty.c |
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@@ -79,8 +79,8 @@ main(int argc, char *argv[]) |
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usage(); |
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int mfd; |
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- pid_t pid = forkpty(&mfd, NULL, NULL, &ws); |
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- switch (pid) { |
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+ pid_t child = forkpty(&mfd, NULL, NULL, &ws); |
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+ switch (child) { |
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case -1: |
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die("forkpty"); |
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case 0: /* child */ |
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@@ -138,8 +138,11 @@ main(int argc, char *argv[]) |
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break; |
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} |
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+ pid_t pid; |
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int status; |
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- waitpid(pid, &status, 0); |
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+ while ((pid = waitpid(-1, &status, WNOHANG)) > 0) |
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+ if (pid != child) |
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+ continue; |
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return WEXITSTATUS(status); |
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} |
