cgm_get: make sure @value is null-terminated

Previously this was done by strncpy, but now we just read the len bytes - not including \0 - from a pipe, so pre-fill @value with 0s to be safe. This fixes the python3 api_test failure. Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>

cgm_get: make sure @value is null-terminated
08ddf801 · Serge Hallyn · Stéphane Graber · fb6c7616 · 08ddf801
Commit 08ddf801 authored Jun 27, 2014 by Serge Hallyn Committed by Stéphane Graber Jun 30, 2014
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cgmanager.c src/lxc/cgmanager.c +1 -0

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--- a/src/lxc/cgmanager.c
+++ b/src/lxc/cgmanager.c
@@ -806,6 +806,7 @@ static int cgm_get(const char *filename, char *value, size_t len, const char *na
 		close(p[0]);
 		return newlen;
 	}
+	memset(value, 0, len);
 	if (newlen < 0) { // child is reporting an error
 		close(p[0]);
 		return -1;