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| author | Denys Vlasenko | 2022-01-13 01:05:03 +0100 |
|---|---|---|
| committer | Denys Vlasenko | 2022-01-13 01:15:10 +0100 |
| commit | 68b402ee51f12f8c3b11638b042f57e025359faf (patch) | |
| tree | f7db9b14b44d89c448fd7d35cae821a97695f7f3 /shell | |
| parent | d162a7b978a98b910e410dc10a40d5de12db0419 (diff) | |
| download | busybox-68b402ee51f12f8c3b11638b042f57e025359faf.zip busybox-68b402ee51f12f8c3b11638b042f57e025359faf.tar.gz | |
ash: ^C with SIG_INGed SIGINT should not exit the shell
function old new delta
__pgetc 501 522 +21
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'shell')
| -rw-r--r-- | shell/ash.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/shell/ash.c b/shell/ash.c index 4c5dd12..12b2db3 100644 --- a/shell/ash.c +++ b/shell/ash.c @@ -10784,18 +10784,24 @@ preadfd(void) line_input_state->path_lookup = pathval(); # endif reinit_unicode_for_ash(); + again: nr = read_line_input(line_input_state, cmdedit_prompt, buf, IBUFSIZ); if (nr == 0) { /* ^C pressed, "convert" to SIGINT */ write(STDOUT_FILENO, "^C", 2); raise(SIGINT); + /* raise(SIGINT) did not work! (e.g. if SIGINT + * is SIG_INGed on startup, it stays SIG_IGNed) + */ if (trap[SIGINT]) { buf[0] = '\n'; buf[1] = '\0'; return 1; } exitstatus = 128 + SIGINT; - return -1; + /* bash behavior on ^C + ignored SIGINT: */ + write(STDOUT_FILENO, "\n", 1); + goto again; } if (nr < 0) { if (errno == 0) { |