zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/lib/libssl/openssl-1.1.1o/apps/rand.c b/ap/lib/libssl/openssl-1.1.1o/apps/rand.c
new file mode 100644
index 0000000..4c61815
--- /dev/null
+++ b/ap/lib/libssl/openssl-1.1.1o/apps/rand.c
@@ -0,0 +1,133 @@
+/*
+ * Copyright 1998-2018 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include "apps.h"
+#include "progs.h"
+
+#include <ctype.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <openssl/bio.h>
+#include <openssl/err.h>
+#include <openssl/rand.h>
+
+typedef enum OPTION_choice {
+ OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
+ OPT_OUT, OPT_ENGINE, OPT_BASE64, OPT_HEX,
+ OPT_R_ENUM
+} OPTION_CHOICE;
+
+const OPTIONS rand_options[] = {
+ {OPT_HELP_STR, 1, '-', "Usage: %s [flags] num\n"},
+ {OPT_HELP_STR, 1, '-', "Valid options are:\n"},
+ {"help", OPT_HELP, '-', "Display this summary"},
+ {"out", OPT_OUT, '>', "Output file"},
+ OPT_R_OPTIONS,
+ {"base64", OPT_BASE64, '-', "Base64 encode output"},
+ {"hex", OPT_HEX, '-', "Hex encode output"},
+#ifndef OPENSSL_NO_ENGINE
+ {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
+#endif
+ {NULL}
+};
+
+int rand_main(int argc, char **argv)
+{
+ ENGINE *e = NULL;
+ BIO *out = NULL;
+ char *outfile = NULL, *prog;
+ OPTION_CHOICE o;
+ int format = FORMAT_BINARY, i, num = -1, r, ret = 1;
+
+ prog = opt_init(argc, argv, rand_options);
+ while ((o = opt_next()) != OPT_EOF) {
+ switch (o) {
+ case OPT_EOF:
+ case OPT_ERR:
+ opthelp:
+ BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
+ goto end;
+ case OPT_HELP:
+ opt_help(rand_options);
+ ret = 0;
+ goto end;
+ case OPT_OUT:
+ outfile = opt_arg();
+ break;
+ case OPT_ENGINE:
+ e = setup_engine(opt_arg(), 0);
+ break;
+ case OPT_R_CASES:
+ if (!opt_rand(o))
+ goto end;
+ break;
+ case OPT_BASE64:
+ format = FORMAT_BASE64;
+ break;
+ case OPT_HEX:
+ format = FORMAT_TEXT;
+ break;
+ }
+ }
+ argc = opt_num_rest();
+ argv = opt_rest();
+ if (argc == 1) {
+ if (!opt_int(argv[0], &num) || num <= 0)
+ goto end;
+ } else if (argc > 0) {
+ BIO_printf(bio_err, "Extra arguments given.\n");
+ goto opthelp;
+ }
+
+ out = bio_open_default(outfile, 'w', format);
+ if (out == NULL)
+ goto end;
+
+ if (format == FORMAT_BASE64) {
+ BIO *b64 = BIO_new(BIO_f_base64());
+ if (b64 == NULL)
+ goto end;
+ out = BIO_push(b64, out);
+ }
+
+ while (num > 0) {
+ unsigned char buf[4096];
+ int chunk;
+
+ chunk = num;
+ if (chunk > (int)sizeof(buf))
+ chunk = sizeof(buf);
+ r = RAND_bytes(buf, chunk);
+ if (r <= 0)
+ goto end;
+ if (format != FORMAT_TEXT) {
+ if (BIO_write(out, buf, chunk) != chunk)
+ goto end;
+ } else {
+ for (i = 0; i < chunk; i++)
+ if (BIO_printf(out, "%02x", buf[i]) != 2)
+ goto end;
+ }
+ num -= chunk;
+ }
+ if (format == FORMAT_TEXT)
+ BIO_puts(out, "\n");
+ if (BIO_flush(out) <= 0)
+ goto end;
+
+ ret = 0;
+
+ end:
+ if (ret != 0)
+ ERR_print_errors(bio_err);
+ release_engine(e);
+ BIO_free_all(out);
+ return ret;
+}