POTD skeleton #89.

Signed-off-by: Toni Uhlig <matzeton@googlemail.com>

1 files changed, 47 insertions, 1 deletions

diff --git a/src/main.c b/src/main.c
index 88deb7f..f0892fb 100644
--- a/src/main.c
+++ b/src/main.c
@@ -28,6 +28,7 @@ static void ssh_protocol_init(protocol_ctx *ctx[], const size_t siz);
 static void rdr_preinit(const char *rdr_ports[], redirector_ctx *ctx[],
                         const size_t siz);
 static pid_t rdr_init(redirector_ctx *ctx[], const size_t siz);
+static int setup_instances(int validate_only);
 
 
 static void jail_preinit(const char *jail_ports[], jail_ctx *ctx[],
@@ -111,6 +112,46 @@ static pid_t rdr_init(redirector_ctx *ctx[], const size_t siz)
     return rdr_pid;
 }
 
+static int setup_instances(int validate_only)
+{
+    char *value = NULL;
+    struct opt_list *ol = NULL;
+    char *hostport[2];
+    size_t hostport_siz[2];
+    size_t siz;
+
+    if (getopt_used(OPT_REDIRECT))
+        while ((value = getopt_strlist(OPT_REDIRECT, &ol))) {
+            siz = parse_hostport(value, hostport, hostport_siz);
+            if (!siz) {
+                fprintf(stderr, "%s: invalid redtirector host:port combination: '%s'\n",
+                    arg0, value);
+                return 1;
+            }
+        }
+    if (getopt_used(OPT_PROTOCOL))
+        while ((value = getopt_strlist(OPT_PROTOCOL, &ol))) {
+            siz = parse_hostport(value, hostport, hostport_siz);
+            if (!siz) {
+                fprintf(stderr, "%s: invalid protocol host:port combination: '%s'\n",
+                    arg0, value);
+                return 1;
+            }
+        }
+    if (getopt_used(OPT_JAIL))
+        while ((value = getopt_strlist(OPT_JAIL, &ol))) {
+            siz = parse_hostport(value, hostport, hostport_siz);
+            if (!siz) {
+                fprintf(stderr, "%s: invalid jail host:port combination: '%s'\n",
+                    arg0, value);
+                return 1;
+            }
+        }
+    /* TODO: setup redirect/protocol/jail instances if validate_only == 0 */
+
+    return 0;
+}
+
 int main(int argc, char *argv[])
 {
     char *value;
@@ -131,11 +172,16 @@ int main(int argc, char *argv[])
     (void) argv;
     arg0 = argv[0];
 
-    if (options_cmdline(argc, argv)) {
+    if (parse_cmdline(argc, argv)) {
         fprintf(stderr, "%s: command line parsing failed\n", argv[0]);
         exit(EXIT_FAILURE);
     }
 
+    if (setup_instances(1)) {
+        fprintf(stderr, "%s: invalid config detected\n", argv[0]);
+        exit(EXIT_FAILURE);
+    }
+
     if (getopt_used(OPT_LOGTOFILE) || getopt_used(OPT_LOGFILE)) {
         log_file = getopt_str(OPT_LOGFILE);
         LOG_SET_FUNCS_VA(LOG_FILE_FUNCS);