1 files changed, 40 insertions, 0 deletions
diff --git a/src/libhttpd/gethead.c b/src/libhttpd/gethead.c
new file mode 100644
index 00000000..91abc7c9
--- /dev/null
+++ b/src/libhttpd/gethead.c
@@ -0,0 +1,40 @@
+#include <u.h>
+#include <libc.h>
+#include <bin.h>
+#include <httpd.h>
+
+/*
+ * read in some header lines, either one or all of them.
+ * copy results into header log buffer.
+ */
+int
+hgethead(HConnect *c, int many)
+{
+	Hio *hin;
+	char *s, *p, *pp;
+	int n;
+
+	hin = &c->hin;
+	for(;;){
+		s = (char*)hin->pos;
+		pp = s;
+		while(p = memchr(pp, '\n', (char*)hin->stop - pp)){
+			if(!many || p == pp || p == pp + 1 && *pp == '\r'){
+				pp = p + 1;
+				break;
+			}
+			pp = p + 1;
+		}
+		hin->pos = (uchar*)pp;
+		n = pp - s;
+		if(c->hstop + n > &c->header[HBufSize])
+			return 0;
+		memmove(c->hstop, s, n);
+		c->hstop += n;
+		*c->hstop = '\0';
+		if(p != nil)
+			return 1;
+		if(hreadbuf(hin, hin->pos) == nil || hin->state == Hend)
+			return 0;
+	}
+}