1 files changed, 75 insertions, 0 deletions
diff --git a/package/toolbox/src/src/md5.c b/package/toolbox/src/src/md5.c
new file mode 100644
index 000000000..3261c7fae
--- /dev/null
+++ b/package/toolbox/src/src/md5.c
@@ -0,0 +1,75 @@
+#include <errno.h>
+#include <fcntl.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <md5.h>
+
+static int usage()
+{
+    fprintf(stderr,"md5 file ...\n");
+    return -1;
+}
+
+static int do_md5(const char *path)
+{
+    unsigned int i;
+    int fd;
+    MD5_CTX md5_ctx;
+    unsigned char md5[MD5_DIGEST_LENGTH];
+
+    fd = open(path, O_RDONLY);
+    if (fd < 0) {
+        fprintf(stderr,"could not open %s, %s\n", path, strerror(errno));
+        return -1;
+    }
+
+    /* Note that bionic's MD5_* functions return void. */
+    MD5Init(&md5_ctx);
+
+    while (1) {
+        char buf[4096];
+        ssize_t rlen;
+        rlen = read(fd, buf, sizeof(buf));
+        if (rlen == 0)
+            break;
+        else if (rlen < 0) {
+            (void)close(fd);
+            fprintf(stderr,"could not read %s, %s\n", path, strerror(errno));
+            return -1;
+        }
+        MD5Update(&md5_ctx, (const void *)buf, rlen);
+    }
+    if (close(fd)) {
+        fprintf(stderr,"could not close %s, %s\n", path, strerror(errno));
+        return -1;
+    }
+
+    MD5Final(md5, &md5_ctx);
+
+    for (i = 0; i < (int)sizeof(md5); i++)
+        printf("%02x", md5[i]);
+    printf("  %s\n", path);
+
+    return 0;
+}
+
+int
+main(int argc, char *argv[])
+{
+    int i, ret = 0;
+
+    if (argc < 2)
+        return usage();
+
+    /* loop over the file args */
+    for (i = 1; i < argc; i++) {
+        if (do_md5(argv[i]))
+            ret = 1;
+    }
+
+    return ret;
+}