add uci export

[project/uci.git] / cli.c

diff --git a/cli.c b/cli.c
index 322d170..40b5d91 100644 (file)
--- a/cli.c
+++ b/cli.c
@@ -15,19 +15,57 @@
 #include "uci.h"
 
 static struct uci_context *ctx;
+static char *buf = NULL;
+static int buflen = 256;
 
 static void uci_usage(int argc, char **argv)
 {
        fprintf(stderr,
-               "Usage: %s [options] <command> [arguments]\n\n"
+               "Usage: %s [<options>] <command> [<arguments>]\n\n"
                "Commands:\n"
                "\tshow [<config>[.<section>[.<option>]]]\n"
+               "\texport [<config>]\n"
                "\n",
                argv[0]
        );
        exit(255);
 }
 
+static char *uci_escape(char *str)
+{
+       char *s, *p, *t;
+       int pos = 0;
+
+       if (!buf)
+               buf = malloc(buflen);
+
+       s = str;
+       p = strchr(str, '\'');
+       if (!p)
+               return str;
+
+       do {
+               int len = p - s;
+               if (len > 0) {
+                       if (p + 3 - str >= buflen) {
+                               buflen *= 2;
+                               buf = realloc(buf, buflen);
+                               if (!buf) {
+                                       fprintf(stderr, "Out of memory\n");
+                                       exit(255);
+                               }
+                       }
+                       memcpy(&buf[pos], s, len);
+                       pos += len;
+               }
+               strcpy(&buf[pos], "'\\''");
+               pos += 3;
+               s = p + 1;
+       } while ((p = strchr(s, '\'')));
+
+       return buf;
+}
+
 static void uci_show_section(struct uci_section *p)
 {
        struct uci_option *o;
@@ -41,7 +79,20 @@ static void uci_show_section(struct uci_section *p)
        }
 }
 
-static void uci_show_file(const char *name)
+static void uci_export_section(struct uci_section *p)
+{
+       struct uci_option *o;
+       const char *name;
+
+       printf("config '%s'", uci_escape(p->type));
+       printf(" '%s'\n", uci_escape(p->name));
+       uci_foreach_entry(option, &p->options, o) {
+               printf("\toption '%s'", uci_escape(o->name));
+               printf(" '%s'\n", uci_escape(o->value));
+       }
+}
+
+static void foreach_section(const char *name, void (*callback)(struct uci_section *))
 {
        struct uci_config *cfg;
        struct uci_section *p;
@@ -53,7 +104,7 @@ static void uci_show_file(const char *name)
 
        uci_list_empty(&cfg->sections);
        uci_foreach_entry(section, &cfg->sections, p) {
-               uci_show_section(p);
+               callback(p);
        }
        uci_unload(ctx, name);
 }
@@ -68,17 +119,33 @@ static int uci_show(int argc, char **argv)
 
        for (p = configs; *p; p++) {
                fprintf(stderr, "# config: %s\n", *p);
-               uci_show_file(*p);
+               foreach_section(*p, uci_show_section);
        }
 
        return 0;
 }
 
+static int uci_export(int argc, char **argv)
+{
+       char **configs = uci_list_configs();
+       char **p;
+
+       if (!configs)
+               return 0;
+
+       for (p = configs; *p; p++) {
+               foreach_section(*p, uci_export_section);
+       }
+       return 0;
+}
+
 static int uci_cmd(int argc, char **argv)
 {
        if (!strcasecmp(argv[0], "show"))
-               uci_show(argc, argv);
-       return 0;
+               return uci_show(argc, argv);
+       if (!strcasecmp(argv[0], "export"))
+               return uci_export(argc, argv);
+       return 255;
 }
 
 int main(int argc, char **argv)
@@ -89,6 +156,8 @@ int main(int argc, char **argv)
        if (argc < 2)
                uci_usage(argc, argv);
        ret = uci_cmd(argc - 1, argv + 1);
+       if (ret == 255)
+               uci_usage(argc, argv);
        uci_free(ctx);
 
        return ret;