Fix "ip route" parsing

If a line did not end with '\r', then the final `\n' was replaced by
'\0' for parsing the current line. This `\0` was then mistakenly
considered as the end of the whole "ip route" output, so the remaining
lines were not parsed, causing "scrcpy --tcpip" to fail in some cases.

To fix the issue, read the final character of the current line before it
is (possibly) overwritten by '\0'.

app/src/adb/adb_parser.c

@@ -204,6 +204,7 @@ sc_adb_parse_device_ip(char *str) {
     while (str[idx_line] != '\0') {
         char *line = &str[idx_line];
         size_t len = strcspn(line, "\n");
+        bool is_last_line = line[len] == '\0';
 
         // The same, but without any trailing '\r'
         size_t line_len = sc_str_remove_trailing_cr(line, len);
@@ -215,12 +216,12 @@ sc_adb_parse_device_ip(char *str) {
             return ip;
         }
 
-        idx_line += len;
-
-        if (str[idx_line] != '\0') {
-            // The next line starts after the '\n'
-            ++idx_line;
+        if (is_last_line) {
+            break;
         }
+
+        // The next line starts after the '\n'
+        idx_line += len + 1;
     }
 
     return NULL;

app/tests/test_adb_parser.c

@@ -217,6 +217,18 @@ static void test_get_ip_multiline_second_ok(void) {
     free(ip);
 }
 
+static void test_get_ip_multiline_second_ok_without_cr(void) {
+    char ip_route[] = "10.0.0.0/24 dev rmnet  proto kernel  scope link  src "
+                      "10.0.0.3\n"
+                      "192.168.1.0/24 dev wlan0  proto kernel  scope link  src "
+                      "192.168.1.3\n";
+
+    char *ip = sc_adb_parse_device_ip(ip_route);
+    assert(ip);
+    assert(!strcmp(ip, "192.168.1.3"));
+    free(ip);
+}
+
 static void test_get_ip_no_wlan(void) {
     char ip_route[] = "192.168.1.0/24 dev rmnet  proto kernel  scope link  src "
                       "192.168.12.34\r\r\n";
@@ -259,6 +271,7 @@ int main(int argc, char *argv[]) {
     test_get_ip_single_line_with_trailing_space();
     test_get_ip_multiline_first_ok();
     test_get_ip_multiline_second_ok();
+    test_get_ip_multiline_second_ok_without_cr();
     test_get_ip_no_wlan();
     test_get_ip_no_wlan_without_eol();
     test_get_ip_truncated();