Fixed a buffer underflow which could happen during processing sdb shell command.

Change-Id: I0faa48855632d00e18b9e054b4f83e786b24bdd9
Signed-off-by: shingil.kang <shingil.kang@samsung.com>

diff --git a/src/services.c b/src/services.c
index 2fbcaa7..64cc80b 100644 (file)
--- a/src/services.c
+++ b/src/services.c
@@ -563,7 +563,7 @@ static void get_env(char *key, char **env)
         e = buf + (strlen(buf) - 1);
 
         // trim string
-        while(*e == ' ' ||  *e == '\n' || *e == '\t') {
+        while( (e > s) && (*e == ' ' ||  *e == '\n' || *e == '\t')) {
             e--;
         }
         *(e+1) ='\0';