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sh: Discard the current line on interrupt.

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This commit is contained in:
Andreas Kling 2019-01-25 15:49:54 +01:00
parent c6fdde37e7
commit 6e5db34b2e
1 changed files with 11 additions and 2 deletions
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13
Userland/sh.cpp
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@ -20,6 +20,7 @@ struct GlobalState {
pid_t sid;
uid_t uid;
termios termios;
bool was_interrupted { false };
};
static GlobalState* g;
@ -50,7 +51,7 @@ void did_receive_signal(int signum)
void handle_sigint(int)
{
printf("Interrupt received by sh\n");
g->was_interrupted = true;
}
static int sh_busy(int, char**)
@ -409,7 +410,15 @@ int main(int, char**)
ssize_t nread = read(0, keybuf, sizeof(keybuf));
if (nread < 0) {
if (errno == EINTR) {
// Ignore. :^)
ASSERT(g->was_interrupted);
if (linedx != 0)
printf("^C");
g->was_interrupted = false;
linebuf[0] = '\0';
linedx = 0;
putchar('\n');
prompt();
continue;
} else {
perror("read failed");
return 2;