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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2012-09-26 16:58:25 +0200 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2012-09-26 16:58:25 +0200 |
| commit | 73a19908975948154d1a07c3550592059238e9ef (patch) | |
| tree | d68fa79168852aaacab2ba933d2c42d37e569f5a /procps | |
| parent | 06a98e32ae930a4e332281b42b6bb769dcadc04e (diff) | |
| download | busybox-73a19908975948154d1a07c3550592059238e9ef.tar.gz | |
top: do not touch stdin if -b
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'procps')
| -rw-r--r-- | procps/top.c | 26 |
1 files changed, 16 insertions, 10 deletions
diff --git a/procps/top.c b/procps/top.c index dc5ea7360..1977fcafc 100644 --- a/procps/top.c +++ b/procps/top.c @@ -717,7 +717,8 @@ static void clearmems(void) static void reset_term(void) { - tcsetattr_stdin_TCSANOW(&initial_settings); + if (!OPT_BATCH_MODE) + tcsetattr_stdin_TCSANOW(&initial_settings); if (ENABLE_FEATURE_CLEAN_UP) { clearmems(); # if ENABLE_FEATURE_TOP_CPU_USAGE_PERCENTAGE @@ -729,7 +730,7 @@ static void reset_term(void) static void sig_catcher(int sig UNUSED_PARAM) { reset_term(); - _exit(EXIT_FAILURE); + kill_myself_with_sig(sig); } #endif /* FEATURE_USE_TERMIOS */ @@ -919,6 +920,12 @@ static unsigned handle_input(unsigned scan_mask, unsigned interval) { struct pollfd pfd[1]; + if (option_mask32 & OPT_EOF) { + /* EOF on stdin ("top </dev/null") */ + sleep(interval); + return scan_mask; + } + pfd[0].fd = 0; pfd[0].events = POLLIN; @@ -1154,10 +1161,13 @@ int top_main(int argc UNUSED_PARAM, char **argv) sort_function[0] = mem_sort; #endif + if (OPT_BATCH_MODE) { + option_mask32 |= OPT_EOF; + } #if ENABLE_FEATURE_USE_TERMIOS - tcgetattr(0, (void *) &initial_settings); - memcpy(&new_settings, &initial_settings, sizeof(new_settings)); - if (!OPT_BATCH_MODE) { + else { + tcgetattr(0, (void *) &initial_settings); + memcpy(&new_settings, &initial_settings, sizeof(new_settings)); /* unbuffered input, turn off echo */ new_settings.c_lflag &= ~(ISIG | ICANON | ECHO | ECHONL); tcsetattr_stdin_TCSANOW(&new_settings); @@ -1269,11 +1279,7 @@ int top_main(int argc UNUSED_PARAM, char **argv) #if !ENABLE_FEATURE_USE_TERMIOS sleep(interval); #else - if (option_mask32 & OPT_EOF) - /* EOF on stdin ("top </dev/null") */ - sleep(interval); - else - scan_mask = handle_input(scan_mask, interval); + scan_mask = handle_input(scan_mask, interval); #endif /* FEATURE_USE_TERMIOS */ } /* end of "while (not Q)" */ |