First Commit

1 files changed, 82 insertions, 0 deletions

diff --git a/cmdline.c b/cmdline.c
new file mode 100644
index 0000000..b1c9fec
--- /dev/null
+++ b/cmdline.c
@@ -0,0 +1,82 @@
+#include "mutebot.h"
+#include <unistd.h>
+#include <stdio.h>
+#include <sysexits.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+struct cmdline cmd = {
+        "./td_data/",
+        false,
+        -1,
+        NULL,
+        NULL,
+        false
+};
+
+static inline int parse_api_id(char *str) {
+    char *endptr;
+    intmax_t num = strtoimax(str, &endptr, 10);
+    if (strcmp(endptr, "") != 0 || (num == INTMAX_MAX && errno == ERANGE) ||
+        num > INT_MAX || num < INT_MIN) {
+        fprintf(stderr, "Invalid API Hash: %s\n", optarg);
+        return EX_USAGE;
+    }
+    cmd.api_id = (int) num;
+    return 0;
+}
+
+int cmdline_init(int argc, char **argv) {
+    int opt;
+    while ((opt = getopt(argc, argv, "d:ti:H:T:l")) != -1) {
+        switch (opt) {
+            case 'd':
+                cmd.td_path = optarg;
+                break;
+            case 't':
+                cmd.test_dc = true;
+                break;
+            case 'i': {
+                int r = parse_api_id(optarg);
+                if (r) return r;
+                break;
+            }
+            case 'H':
+                cmd.api_hash = optarg;
+                break;
+            case 'T':
+                cmd.bot_token = optarg;
+                break;
+            case 'l':
+                cmd.logout = true;
+                break;
+            default:
+                fprintf(stderr, "Consult mutebot(1) for more details.\n");
+                return EX_USAGE;
+        }
+    }
+    if (cmd.api_id == -1 && getenv("TD_API_ID") != NULL) {
+        int r = parse_api_id(getenv("TD_API_ID"));
+        if (r) return r;
+    }
+    if (cmd.api_hash == NULL) cmd.api_hash = getenv("TD_API_HASH");
+    if (cmd.bot_token == NULL) cmd.bot_token = getenv("TD_BOT_TOKEN");
+
+    bool chkfail = false;
+    if (cmd.api_id == -1) {
+        fprintf(stderr, "You need to specify -i <API ID> or use TD_API_ID Environment Variable.\n");
+	chkfail = true;
+    }
+    if (cmd.api_hash == NULL) {
+        fprintf(stderr, "You need to specify -H <API Hash> or use TD_API_HASH Environment Variable.\n");
+	chkfail = true;
+    }
+    if (cmd.bot_token == NULL) {
+        fprintf(stderr, "You need to specify -T <BOT Token> or use TD_BOT_TOKEN Environment Variable.\n");
+	chkfail = true;
+    }
+    return chkfail ? EX_USAGE : EX_OK;
+}