Add libjpeg-turbo 1.3.1.

libs/libjpeg-turbo/md5/md5hl.c

@@ -0,0 +1,97 @@
+/* mdXhl.c * ----------------------------------------------------------------------------
+ * "THE BEER-WARE LICENSE" (Revision 42):
+ * <phk@FreeBSD.org> wrote this file.  As long as you retain this notice you
+ * can do whatever you want with this stuff. If we meet some day, and you think
+ * this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp
+ * ----------------------------------------------------------------------------
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#define LENGTH 16
+
+#include "./md5.h"
+
+char *
+MD5End(MD5_CTX *ctx, char *buf)
+{
+	int i;
+	unsigned char digest[LENGTH];
+	static const char hex[]="0123456789abcdef";
+
+	if (!buf)
+		buf = malloc(2*LENGTH + 1);
+	if (!buf)
+		return 0;
+	MD5Final(digest, ctx);
+	for (i = 0; i < LENGTH; i++) {
+		buf[i+i] = hex[digest[i] >> 4];
+		buf[i+i+1] = hex[digest[i] & 0x0f];
+	}
+	buf[i+i] = '\0';
+	return buf;
+}
+
+char *
+MD5File(const char *filename, char *buf)
+{
+	return (MD5FileChunk(filename, buf, 0, 0));
+}
+
+char *
+MD5FileChunk(const char *filename, char *buf, off_t ofs, off_t len)
+{
+	unsigned char buffer[BUFSIZ];
+	MD5_CTX ctx;
+	struct stat stbuf;
+	int f, i, e;
+	off_t n;
+
+	MD5Init(&ctx);
+	f = open(filename, O_RDONLY);
+	if (f < 0)
+		return 0;
+	if (fstat(f, &stbuf) < 0)
+		return 0;
+	if (ofs > stbuf.st_size)
+		ofs = stbuf.st_size;
+	if ((len == 0) || (len > stbuf.st_size - ofs))
+		len = stbuf.st_size - ofs;
+	if (lseek(f, ofs, SEEK_SET) < 0)
+		return 0;
+	n = len;
+	i = 0;
+	while (n > 0) {
+		if (n > sizeof(buffer))
+			i = read(f, buffer, sizeof(buffer));
+		else
+			i = read(f, buffer, n);
+		if (i < 0) 
+			break;
+		MD5Update(&ctx, buffer, i);
+		n -= i;
+	} 
+	e = errno;
+	close(f);
+	errno = e;
+	if (i < 0)
+		return 0;
+	return (MD5End(&ctx, buf));
+}
+
+char *
+MD5Data (const void *data, unsigned int len, char *buf)
+{
+	MD5_CTX ctx;
+
+	MD5Init(&ctx);
+	MD5Update(&ctx,data,len);
+	return (MD5End(&ctx, buf));
+}