check whether a connection exists before executing certain commands

This commit is contained in:
josch
2014-10-25 11:34:34 +02:00
parent 5e24f47c10
commit fe17cb517f
11 changed files with 78 additions and 3 deletions

View File

@@ -39,6 +39,11 @@ int mfshell_cmd_links(mfshell * mfshell, int argc, char *const argv[])
if (mfshell == NULL)
return -1;
if (mfshell->conn == NULL) {
fprintf(stderr, "conn is NULL\n");
return -1;
}
if (argc != 2) {
fprintf(stderr, "Invalid number of arguments\n");
return -1;