runner: Chomp away trailing spaces from cmdline

A minor refinement to remove the trailing spaces after converting the
NUL-terminators to spaces.

v2: Beware the crafty filename entirely composed of spaces.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Petri Latvala <petri.latvala@intel.com>
Reviewed-by: Petri Latvala <petri.latvala@intel.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/runner/executor.c b/runner/executor.c
index 3e012142..1a00237f 100644
--- a/runner/executor.c
+++ b/runner/executor.c
@@ -630,6 +630,10 @@ static const char *get_cmdline(pid_t pid, char *buf, ssize_t len)
 		if (buf[i] == '\0')
 			buf[i] = ' ';
 
+	/* chomp away the trailing spaces */
+	while (len && buf[len - 1] == ' ')
+		--len;
+
 	buf[len] = '\0'; /* but make sure that we return a valid string! */
 	return buf;
 }