3 files changed, 36 insertions, 0 deletions

diff --git a/cgit.h b/cgit.h
index 249650e..eb8f08c 100644
--- a/cgit.h
+++ b/cgit.h
@@ -69,2 +69,4 @@ extern void cgit_querystring_cb(const char *name, const char *value);
 
+extern int hextoint(char c);
+
 extern void *cgit_free_commitinfo(struct commitinfo *info);
diff --git a/parsing.c b/parsing.c
index 1b22fcf..4173dd4 100644
--- a/parsing.c
+++ b/parsing.c
@@ -81,2 +81,21 @@ int cgit_read_config(const char *filename, configfn fn)
 
+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 cgit_parse_query(char *txt, configfn fn)
@@ -96,2 +115,4 @@ int cgit_parse_query(char *txt, configfn fn)
 			*t = ' ';
+		} else if (c=='%') {
+			t = convert_query_hexchar(t);
 		} else if (c=='&') {
diff --git a/shared.c b/shared.c
index 7def51a..e4595fa 100644
--- a/shared.c
+++ b/shared.c
@@ -115 +115,14 @@ void *cgit_free_commitinfo(struct commitinfo *info)
 }
+
+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;
+}
+