Merge branch 'lh/cleanup'

* lh/cleanup: (21 commits)
  Reset ctx.repo to NULL when the config parser is finished
  Move cgit_parse_query() from parsing.c to html.c as http_parse_querystring()
  Move function for configfile parsing into configfile.[ch]
  Add cache.h
  Remove global and obsolete cgit_cmd
  Makefile: copy the QUIET constructs from the Makefile in git.git
  Move cgit_version from shared.c to cgit.c
  Makefile: autobuild dependency rules
  Initial Makefile cleanup
  Move non-generic functions from shared.c to cgit.c
  Add ui-shared.h
  Add separate header-files for each page/view
  Refactor snapshot support
  Add command dispatcher
  Remove obsolete cacheitem parameter to ui-functions
  Add struct cgit_page to cgit_context
  Introduce html.h
  Improve initialization of git directory
  Move cgit_repo into cgit_context
  Add all config variables into struct cgit_context
  ...

html.c

@@ -6,7 +6,13 @@
  *   (see COPYING for full license text)
  */
 
-#include "cgit.h"
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+
+int htmlfd = STDOUT_FILENO;
 
 char *fmt(const char *format, ...)
 {
@@ -21,8 +27,10 @@ char *fmt(const char *format, ...)
 	va_start(args, format);
 	len = vsnprintf(buf[bufidx], sizeof(buf[bufidx]), format, args);
 	va_end(args);
-	if (len>sizeof(buf[bufidx]))
-		die("[html.c] string truncated: %s", format);
+	if (len>sizeof(buf[bufidx])) {
+		fprintf(stderr, "[html.c] string truncated: %s\n", format);
+		exit(1);
+	}
 	return buf[bufidx];
 }
 
@@ -150,25 +158,10 @@ void html_link_close(void)
 
 void html_fileperm(unsigned short mode)
 {
-	htmlf("%c%c%c", (mode & 4 ? 'r' : '-'), 
+	htmlf("%c%c%c", (mode & 4 ? 'r' : '-'),
 	      (mode & 2 ? 'w' : '-'), (mode & 1 ? 'x' : '-'));
 }
 
-void html_filemode(unsigned short mode)
-{
-	if (S_ISDIR(mode))
-		html("d");
-	else if (S_ISLNK(mode))
-		html("l");
-	else if (S_ISGITLINK(mode))
-		html("m");
-	else
-		html("-");
-	html_fileperm(mode >> 6);
-	html_fileperm(mode >> 3);
-	html_fileperm(mode);
-}
-
 int html_include(const char *filename)
 {
 	FILE *f;
@@ -182,3 +175,67 @@ int html_include(const char *filename)
 	fclose(f);
 	return 0;
 }
+
+int hextoint(char c)
+{
+	if (c >= 'a' && c <= 'f')
+		return 10 + c - 'a';
+	else if (c >= 'A' && c <= 'F')
+		return 10 + c - 'A';
+	else if (c >= '0' && c <= '9')
+		return c - '0';
+	else
+		return -1;
+}
+
+char *convert_query_hexchar(char *txt)
+{
+	int d1, d2;
+	if (strlen(txt) < 3) {
+		*txt = '\0';
+		return txt-1;
+	}
+	d1 = hextoint(*(txt+1));
+	d2 = hextoint(*(txt+2));
+	if (d1<0 || d2<0) {
+		strcpy(txt, txt+3);
+		return txt-1;
+	} else {
+		*txt = d1 * 16 + d2;
+		strcpy(txt+1, txt+3);
+		return txt;
+	}
+}
+
+int http_parse_querystring(char *txt, void (*fn)(const char *name, const char *value))
+{
+	char *t, *value = NULL, c;
+
+	if (!txt)
+		return 0;
+
+	t = txt = strdup(txt);
+	if (t == NULL) {
+		printf("Out of memory\n");
+		exit(1);
+	}
+	while((c=*t) != '\0') {
+		if (c=='=') {
+			*t = '\0';
+			value = t+1;
+		} else if (c=='+') {
+			*t = ' ';
+		} else if (c=='%') {
+			t = convert_query_hexchar(t);
+		} else if (c=='&') {
+			*t = '\0';
+			(*fn)(txt, value);
+			txt = t+1;
+			value = NULL;
+		}
+		t++;
+	}
+	if (t!=txt)
+		(*fn)(txt, value);
+	return 0;
+}