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| author | dwmalone <dwmalone@FreeBSD.org> | 2001-11-04 21:15:52 +0000 |
|---|---|---|
| committer | dwmalone <dwmalone@FreeBSD.org> | 2001-11-04 21:15:52 +0000 |
| commit | 2650f9ea1495350c4d4c119e172b59ab1af10ad4 (patch) | |
| tree | 7ca9569b44063a2fb9c8cdf2f870c7664c2df54e /contrib/top | |
| parent | 7042915fc3293e8d36347822b638b2f30095de9f (diff) | |
| download | FreeBSD-src-2650f9ea1495350c4d4c119e172b59ab1af10ad4.zip FreeBSD-src-2650f9ea1495350c4d4c119e172b59ab1af10ad4.tar.gz | |
Make top exit if its tty vanishes.
PR: 30939, 30581
Submitted by: Edwin Groothuis <edwin@mavetju.org>
Submitted by: Andrew L. Neporada <andr@dgap.mipt.ru>
MFC after: 2 weeks
Diffstat (limited to 'contrib/top')
| -rw-r--r-- | contrib/top/top.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/contrib/top/top.c b/contrib/top/top.c index ef1d47f..9b9b2b2 100644 --- a/contrib/top/top.c +++ b/contrib/top/top.c @@ -32,6 +32,7 @@ char *copyright = */ #include "os.h" +#include <errno.h> #include <signal.h> #include <setjmp.h> #include <ctype.h> @@ -157,6 +158,7 @@ char *argv[]; int topn = Default_TOPN; int delay = Default_DELAY; int displays = 0; /* indicates unspecified */ + int sel_ret = 0; time_t curr_time; char *(*get_userid)() = username; char *uname_field = "USERNAME"; @@ -711,7 +713,10 @@ restart: } /* wait for either input or the end of the delay period */ - if (select(32, &readfds, (fd_set *)NULL, (fd_set *)NULL, &timeout) > 0) + sel_ret = select(2, &readfds, NULL, NULL, &timeout); + if (sel_ret < 0 && errno != EINTR) + quit(0); + if (sel_ret > 0) { int newval; char *errmsg; @@ -721,7 +726,8 @@ restart: /* now read it and convert to command strchr */ /* (use "change" as a temporary to hold strchr) */ - (void) read(0, &ch, 1); + if (read(0, &ch, 1) != 1) + quit(0); if ((iptr = strchr(command_chars, ch)) == NULL) { if (ch != '\r' && ch != '\n') |
