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TTYServer: Use fork+exec instead of system()

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No point in spawning an extra shell process just to spawn a shell. :^)
This commit is contained in:
Andreas Kling 2020-01-04 12:33:34 +01:00
parent b5da0b78eb
commit 4f4dc47ec3
1 changed files with 15 additions and 2 deletions
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17
Servers/TTYServer/main.cpp
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@ -1,5 +1,8 @@
#include <AK/Assertions.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <sys/wait.h>
#include <unistd.h>
int main(int argc, char** argv) int main(int argc, char** argv)
{ {
@ -10,7 +13,17 @@ int main(int argc, char** argv)
while (true) { while (true) {
dbgprintf("Running shell on %s\n", argv[1]); dbgprintf("Running shell on %s\n", argv[1]);
int rc = system("/bin/Shell");
dbgprintf("Shell on %s exited with code %d\n", argv[1], rc); auto child = fork();
if (!child) {
int rc = execl("/bin/Shell", "Shell", nullptr);
ASSERT(rc < 0);
perror("execl");
exit(127);
} else {
int wstatus;
waitpid(child, &wstatus, 0);
dbgprintf("Shell on %s exited with code %d\n", argv[1], WEXITSTATUS(wstatus));
}
} }
} }