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113 lines
2.4 KiB
113 lines
2.4 KiB
/* NOCW */ |
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/* demos/bio/sconnect.c */ |
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/*- |
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* A minimal program to do SSL to a passed host and port. |
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* It is actually using non-blocking IO but in a very simple manner |
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* sconnect host:port - it does a 'GET / HTTP/1.0' |
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* |
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* cc -I../../include sconnect.c -L../.. -lssl -lcrypto |
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*/ |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <unistd.h> |
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#include <openssl/err.h> |
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#include <openssl/ssl.h> |
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extern int errno; |
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int main(argc, argv) |
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int argc; |
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char *argv[]; |
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{ |
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char *host; |
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BIO *out; |
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char buf[1024 * 10], *p; |
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SSL_CTX *ssl_ctx = NULL; |
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SSL *ssl; |
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BIO *ssl_bio; |
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int i, len, off, ret = 1; |
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if (argc <= 1) |
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host = "localhost:4433"; |
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else |
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host = argv[1]; |
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#ifdef WATT32 |
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dbug_init(); |
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sock_init(); |
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#endif |
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/* Lets get nice error messages */ |
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SSL_load_error_strings(); |
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/* Setup all the global SSL stuff */ |
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OpenSSL_add_ssl_algorithms(); |
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ssl_ctx = SSL_CTX_new(SSLv23_client_method()); |
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/* Lets make a SSL structure */ |
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ssl = SSL_new(ssl_ctx); |
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SSL_set_connect_state(ssl); |
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/* Use it inside an SSL BIO */ |
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ssl_bio = BIO_new(BIO_f_ssl()); |
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BIO_set_ssl(ssl_bio, ssl, BIO_CLOSE); |
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/* Lets use a connect BIO under the SSL BIO */ |
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out = BIO_new(BIO_s_connect()); |
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BIO_set_conn_hostname(out, host); |
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BIO_set_nbio(out, 1); |
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out = BIO_push(ssl_bio, out); |
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p = "GET / HTTP/1.0\r\n\r\n"; |
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len = strlen(p); |
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off = 0; |
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for (;;) { |
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i = BIO_write(out, &(p[off]), len); |
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if (i <= 0) { |
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if (BIO_should_retry(out)) { |
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fprintf(stderr, "write DELAY\n"); |
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sleep(1); |
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continue; |
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} else { |
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goto err; |
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} |
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} |
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off += i; |
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len -= i; |
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if (len <= 0) |
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break; |
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} |
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for (;;) { |
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i = BIO_read(out, buf, sizeof(buf)); |
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if (i == 0) |
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break; |
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if (i < 0) { |
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if (BIO_should_retry(out)) { |
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fprintf(stderr, "read DELAY\n"); |
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sleep(1); |
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continue; |
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} |
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goto err; |
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} |
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fwrite(buf, 1, i, stdout); |
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} |
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ret = 1; |
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if (0) { |
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err: |
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if (ERR_peek_error() == 0) { /* system call error */ |
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fprintf(stderr, "errno=%d ", errno); |
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perror("error"); |
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} else |
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ERR_print_errors_fp(stderr); |
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} |
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BIO_free_all(out); |
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if (ssl_ctx != NULL) |
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SSL_CTX_free(ssl_ctx); |
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exit(!ret); |
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return (ret); |
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}
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