tools: env: factor out parse_common_args

Signed-off-by: Andreas Fenkart <andreas.fenkart@digitalstrom.com>

diff --git a/tools/env/fw_env_main.c b/tools/env/fw_env_main.c
index daf468823f7cf8952ea97df9158f33c6ded448a9..39c8771e4d4f32e64496c6e11494ec3fc9509884 100644 (file)
--- a/tools/env/fw_env_main.c
+++ b/tools/env/fw_env_main.c
@@ -81,7 +81,7 @@ void usage(void)
        );
 }
 
-int parse_printenv_args(int argc, char *argv[])
+static void parse_common_args(int argc, char *argv[])
 {
        int c;
 
@@ -89,13 +89,13 @@ int parse_printenv_args(int argc, char *argv[])
        common_args.config_file = CONFIG_FILE;
 #endif
 
-       while ((c = getopt_long (argc, argv, "a:c:ns:h",
-               long_options, NULL)) != EOF) {
+       while ((c = getopt_long(argc, argv, ":a:c:h", long_options, NULL)) !=
+              EOF) {
                switch (c) {
                case 'a':
                        if (parse_aes_key(optarg, common_args.aes_key)) {
                                fprintf(stderr, "AES key parse error\n");
-                               return EXIT_FAILURE;
+                               exit(EXIT_FAILURE);
                        }
                        common_args.aes_flag = 1;
                        break;
@@ -104,12 +104,37 @@ int parse_printenv_args(int argc, char *argv[])
                        common_args.config_file = optarg;
                        break;
 #endif
+               case 'h':
+                       usage();
+                       exit(EXIT_SUCCESS);
+                       break;
+               default:
+                       /* ignore unknown options */
+                       break;
+               }
+       }
+
+       /* Reset getopt for the next pass. */
+       opterr = 1;
+       optind = 1;
+}
+
+int parse_printenv_args(int argc, char *argv[])
+{
+       int c;
+
+       parse_common_args(argc, argv);
+
+       while ((c = getopt_long(argc, argv, "a:c:ns:h", long_options, NULL)) !=
+              EOF) {
+               switch (c) {
                case 'n':
                        printenv_args.name_suppress = 1;
                        break;
+               case 'a':
+               case 'c':
                case 'h':
-                       usage();
-                       exit(EXIT_SUCCESS);
+                       /* ignore common options */
                        break;
                default: /* '?' */
                        usage();
@@ -124,31 +149,18 @@ int parse_setenv_args(int argc, char *argv[])
 {
        int c;
 
-#ifdef CONFIG_FILE
-       common_args.config_file = CONFIG_FILE;
-#endif
+       parse_common_args(argc, argv);
 
-       while ((c = getopt_long (argc, argv, "a:c:ns:h",
-               long_options, NULL)) != EOF) {
+       while ((c = getopt_long(argc, argv, "a:c:ns:h", long_options, NULL)) !=
+              EOF) {
                switch (c) {
-               case 'a':
-                       if (parse_aes_key(optarg, common_args.aes_key)) {
-                               fprintf(stderr, "AES key parse error\n");
-                               return EXIT_FAILURE;
-                       }
-                       common_args.aes_flag = 1;
-                       break;
-#ifdef CONFIG_FILE
-               case 'c':
-                       common_args.config_file = optarg;
-                       break;
-#endif
                case 's':
                        setenv_args.script_file = optarg;
                        break;
+               case 'a':
+               case 'c':
                case 'h':
-                       usage();
-                       exit(EXIT_SUCCESS);
+                       /* ignore common options */
                        break;
                default: /* '?' */
                        usage();