escape: define main through macro

diff --git a/src/escape/escape.c b/src/escape/escape.c
index c5cb789..181949d 100644 (file)
--- a/src/escape/escape.c
+++ b/src/escape/escape.c
@@ -163,7 +163,7 @@ static int parse_argv(int argc, char *argv[]) {
         return 1;
 }
 
-int main(int argc, char *argv[]) {
+static int run(int argc, char *argv[]) {
         char **i;
         int r;
 
@@ -172,7 +172,7 @@ int main(int argc, char *argv[]) {
 
         r = parse_argv(argc, argv);
         if (r <= 0)
-                goto finish;
+                return r;
 
         STRV_FOREACH(i, argv + optind) {
                 _cleanup_free_ char *e = NULL;
@@ -182,26 +182,20 @@ int main(int argc, char *argv[]) {
                 case ACTION_ESCAPE:
                         if (arg_path) {
                                 r = unit_name_path_escape(*i, &e);
-                                if (r < 0) {
-                                        log_error_errno(r, "Failed to escape string: %m");
-                                        goto finish;
-                                }
+                                if (r < 0)
+                                        return log_error_errno(r, "Failed to escape string: %m");
                         } else {
                                 e = unit_name_escape(*i);
-                                if (!e) {
-                                        r = log_oom();
-                                        goto finish;
-                                }
+                                if (!e)
+                                        return log_oom();
                         }
 
                         if (arg_template) {
                                 char *x;
 
                                 r = unit_name_replace_instance(arg_template, e, &x);
-                                if (r < 0) {
-                                        log_error_errno(r, "Failed to replace instance: %m");
-                                        goto finish;
-                                }
+                                if (r < 0)
+                                        return log_error_errno(r, "Failed to replace instance: %m");
 
                                 free(e);
                                 e = x;
@@ -209,10 +203,8 @@ int main(int argc, char *argv[]) {
                                 char *x;
 
                                 x = strjoin(e, ".", arg_suffix);
-                                if (!x) {
-                                        r = log_oom();
-                                        goto finish;
-                                }
+                                if (!x)
+                                        return log_oom();
 
                                 free(e);
                                 e = x;
@@ -227,51 +219,38 @@ int main(int argc, char *argv[]) {
                                 _cleanup_free_ char *template = NULL;
 
                                 r = unit_name_to_instance(*i, &name);
-                                if (r < 0) {
-                                        log_error_errno(r, "Failed to extract instance: %m");
-                                        goto finish;
-                                }
-                                if (isempty(name)) {
-                                        log_error("Unit %s is missing the instance name.", *i);
-                                        r = -EINVAL;
-                                        goto finish;
-                                }
+                                if (r < 0)
+                                        return log_error_errno(r, "Failed to extract instance: %m");
+                                if (isempty(name))
+                                        return log_error("Unit %s is missing the instance name.", *i);
+
                                 r = unit_name_template(*i, &template);
-                                if (r < 0) {
-                                        log_error_errno(r, "Failed to extract template: %m");
-                                        goto finish;
-                                }
-                                if (arg_template && !streq(arg_template, template)) {
-                                        log_error("Unit %s template %s does not match specified template %s.", *i, template, arg_template);
-                                        r = -EINVAL;
-                                        goto finish;
-                                }
+                                if (r < 0)
+                                        return log_error_errno(r, "Failed to extract template: %m");
+                                if (arg_template && !streq(arg_template, template))
+                                        return log_error("Unit %s template %s does not match specified template %s.",
+                                                         *i, template, arg_template);
                         } else {
                                 name = strdup(*i);
-                                if (!name) {
-                                        r = log_oom();
-                                        goto finish;
-                                }
+                                if (!name)
+                                        return log_oom();
                         }
 
                         if (arg_path)
                                 r = unit_name_path_unescape(name, &e);
                         else
                                 r = unit_name_unescape(name, &e);
+                        if (r < 0)
+                                return log_error_errno(r, "Failed to unescape string: %m");
 
-                        if (r < 0) {
-                                log_error_errno(r, "Failed to unescape string: %m");
-                                goto finish;
-                        }
                         break;
                 }
 
                 case ACTION_MANGLE:
                         r = unit_name_mangle(*i, 0, &e);
-                        if (r < 0) {
-                                log_error_errno(r, "Failed to mangle name: %m");
-                                goto finish;
-                        }
+                        if (r < 0)
+                                return log_error_errno(r, "Failed to mangle name: %m");
+
                         break;
                 }
 
@@ -283,6 +262,7 @@ int main(int argc, char *argv[]) {
 
         fputc('\n', stdout);
 
-finish:
-        return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
+        return 0;
 }
+
+DEFINE_MAIN_FUNCTION(run);