make sure we do not run past the end of an unterminated string

git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@108 f882894a-f735-0410-b71e-b25c423dba1c

diff --git a/plugins/popen.c b/plugins/popen.c
index cde3c7647465ca26e7effd9cae8617a27bf86780..d056904dcd88dcc36225291024c227521888f5e4 100644 (file)
--- a/plugins/popen.c
+++ b/plugins/popen.c
@@ -302,8 +302,9 @@ char *
 rtrim (char *str, const char *tok)
 {
        int i = 0;
+       int j = sizeof (str);
 
-       while (str != NULL) {
+       while (str != NULL && i < j) {
                if (*(str + i) == *tok) {
                        sprintf (str + i, "%s", "\0");
                        return str;