X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/disorder/blobdiff_plain/5b708e0cac7e269355f5b38480ad0256e5831a0d..0ba75c7fdd81cb363e43746c509b7e9922475134:/lib/cgi.c

diff --git a/lib/cgi.c b/lib/cgi.c
index 9b4762f..8cb04bb 100644
--- a/lib/cgi.c
+++ b/lib/cgi.c
@@ -21,15 +21,10 @@
  * @brief CGI tools
  */
 
-#include <config.h>
-#include "types.h"
+#include "common.h"
 
-#include <stdlib.h>
-#include <string.h>
-#include <assert.h>
 #include <unistd.h>
 #include <errno.h>
-#include <stdio.h>
 
 #include "cgi.h"
 #include "mem.h"
@@ -207,6 +202,17 @@ const char *cgi_get(const char *name) {
   return v ? *v : NULL;
 }
 
+/** @brief Set a CGI argument */
+void cgi_set(const char *name, const char *value) {
+  value = xstrdup(value);
+  hash_add(cgi_args, name, &value, HASH_INSERT_OR_REPLACE);
+}
+
+/** @brief Clear CGI arguments */
+void cgi_clear(void) {
+  cgi_args = hash_new(sizeof (char *));
+}
+
 /** @brief Add SGML-style quoting
  * @param src String to quote (UTF-8)
  * @return Quoted string
@@ -333,6 +339,27 @@ char *cgi_makeurl(const char *url, ...) {
   return d.vec;
 }
 
+/** @brief Construct a URL from current parameters
+ * @param url Base URL
+ * @return Constructed URL
+ */
+char *cgi_thisurl(const char *url) {
+  struct dynstr d[1];
+  char **keys = hash_keys(cgi_args);
+  int n;
+
+  dynstr_init(d);
+  dynstr_append_string(d, url);
+  for(n = 0; keys[n]; ++n) {
+    dynstr_append(d, n ? '&' : '?');
+    dynstr_append_string(d, urlencodestring(keys[n]));
+    dynstr_append(d, '=');
+    dynstr_append_string(d, urlencodestring(cgi_get(keys[n])));
+  }
+  dynstr_terminate(d);
+  return d->vec;
+}
+
 /*
 Local Variables:
 c-basic-offset:2