[procps] [PATCH] top: check for /proc before running
- From: Mike Frysinger <vapier@xxxxxxxxxx>
- To: procps@xxxxxxxxxxxxx
- Date: Tue, 24 Apr 2012 22:48:26 -0400
If /proc is not mounted when someone runs top, the console is left in
a bad state (which `reset` doesn't fully restore). So add a sanity
check when starting up.
I think this dates back to a Fedora patch, but I've updated it to the
current git.
Signed-off-by: Mike Frysinger <vapier@xxxxxxxxxx>
---
top/top.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/top/top.c b/top/top.c
index 41b69a7..522f4d1 100644
--- a/top/top.c
+++ b/top/top.c
@@ -3904,6 +3904,10 @@ int main (int dont_care_argc, char **argv) {
(void)dont_care_argc;
atexit(close_stdout);
before(*argv);
+
+ if (access("/proc/stat", F_OK))
+ error_exit("/proc is not mounted, required for output data");
+
// +-------------+
wins_stage_1(); // top (sic) slice
configs_read(); // > spread etc, <
--
1.7.8.5
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