Add an easy way to edit a configuration file.

[tinc] / src / tincctl.c

diff --git a/src/tincctl.c b/src/tincctl.c
index 523bbb4..6725b8b 100644 (file)
--- a/src/tincctl.c
+++ b/src/tincctl.c
@@ -1269,6 +1269,59 @@ static int cmd_version(int argc, char *argv[]) {
        return 0;
 }
 
+static const char *conffiles[] = {
+       "tinc.conf",
+       "tinc-up",
+       "tinc-down",
+       "subnet-up",
+       "subnet-down",
+       "host-up",
+       "host-down",
+       NULL,
+};
+
+static int cmd_edit(int argc, char *argv[]) {
+       if(argc != 2) {
+               fprintf(stderr, "Invalid number of arguments.\n");
+               return 1;
+       }
+
+       char *filename = NULL;
+
+       if(strncmp(argv[1], "hosts/", 6)) {
+               for(int i = 0; conffiles[i]; i++) {
+                       if(!strcmp(argv[1], conffiles[i])) {
+                               xasprintf(&filename, "%s/%s", confbase, argv[1]);
+                               break;
+                       }
+               }
+       } else {
+               argv[1] += 6;
+       }
+
+       if(!filename) {
+               xasprintf(&filename, "%s/%s", hosts_dir, argv[1]);
+               char *dash = strchr(argv[1], '-');
+               if(dash) {
+                       *dash++ = 0;
+                       if((strcmp(dash, "up") && strcmp(dash, "down")) || !check_id(argv[1])) {
+                               fprintf(stderr, "Invalid configuration filename.\n");
+                               return 1;
+                       }
+               }
+       }
+
+#ifndef HAVE_MINGW
+       char *editor = getenv("VISUAL") ?: getenv("EDITOR") ?: "vi";
+#else
+       char *editor = "edit"
+#endif
+
+       char *command;
+       xasprintf(&command, "\"%s\" \"%s\"", editor, filename);
+       return system(command);
+}
+
 static const struct {
        const char *command;
        int (*function)(int argc, char *argv[]);
@@ -1294,6 +1347,7 @@ static const struct {
        {"generate-ecdsa-keys", cmd_generate_ecdsa_keys},
        {"help", cmd_help},
        {"version", cmd_version},
+       {"edit", cmd_edit},
        {NULL, NULL},
 };