Factor out commonality between client.c & server.c

rustls · Apr 15, 2024 · d942be0 · d942be0
1 parent 5a23acb
commit d942be0
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Showing 3 changed files with 69 additions and 104 deletions.
diff --git a/rustls-libssl/tests/client.c b/rustls-libssl/tests/client.c
@@ -13,38 +13,10 @@
 #include <sys/types.h>
 #include <unistd.h>
 
-#include <openssl/err.h>
 #include <openssl/ssl.h>
 #include <openssl/x509.h>
 
-static int trace(int rc, const char *str) {
-  printf("%s: %d\n", str, rc);
-  return rc;
-}
-
-#define TRACE(fn) trace((fn), #fn)
-
-static void hexdump(const char *label, const void *buf, int n) {
-  const uint8_t *ubuf = (const uint8_t *)buf;
-  printf("%s (%d bytes): ", label, n);
-  for (int i = 0; i < n; i++) {
-    printf("%02x", ubuf[i]);
-  }
-  printf("\n");
-}
-
-static void dump_openssl_error_stack(void) {
-  if (ERR_peek_error() != 0) {
-    printf("openssl error: %08lx\n", ERR_peek_error());
-    ERR_print_errors_fp(stderr);
-  }
-}
-
-static void state(const SSL *s) {
-  OSSL_HANDSHAKE_STATE st = SSL_get_state(s);
-  printf("state: %d (before:%d, init:%d, fin:%d)\n", st, SSL_in_before(s),
-         SSL_in_init(s), SSL_is_init_finished(s));
-}
+#include "helpers.h"
 
 int main(int argc, char **argv) {
   if (argc != 4 && argc != 6) {
@@ -128,29 +100,7 @@ int main(int argc, char **argv) {
   printf("verify-result: %ld\n", SSL_get_verify_result(ssl));
   printf("cipher: %s\n", SSL_CIPHER_standard_name(SSL_get_current_cipher(ssl)));
 
-  // check the peer certificate and chain
-  X509 *cert = SSL_get1_peer_certificate(ssl);
-  if (cert) {
-    char *name = X509_NAME_oneline(X509_get_subject_name(cert), NULL, 0);
-    printf("server subject: %s\n", name);
-    free(name);
-  } else {
-    printf("server cert absent\n");
-  }
-  X509_free(cert);
-
-  STACK_OF(X509) *chain = SSL_get_peer_cert_chain(ssl);
-  if (chain) {
-    printf("%d certs in server chain\n", sk_X509_num(chain));
-    for (int i = 0; i < sk_X509_num(chain); i++) {
-      X509 *cert = sk_X509_value(chain, i);
-      char *name = X509_NAME_oneline(X509_get_subject_name(cert), NULL, 0);
-      printf("  %d: %s\n", i, name);
-      free(name);
-    }
-  } else {
-    printf("server cert chain absent\n");
-  }
+  show_peer_certificate("server", ssl);
 
   if (getenv("NO_ECHO")) {
     printf("NO_ECHO set, skipping echo test\n");

diff --git a/rustls-libssl/tests/helpers.h b/rustls-libssl/tests/helpers.h
@@ -0,0 +1,65 @@
+#ifndef TESTS_COMMON_H
+#define TESTS_COMMON_H
+
+#include <stdio.h>
+
+#include <openssl/err.h>
+#include <openssl/ssl.h>
+#include <openssl/x509.h>
+
+static int trace(int rc, const char *str) {
+  printf("%s: %d\n", str, rc);
+  return rc;
+}
+
+#define TRACE(fn) trace((fn), #fn)
+
+static void hexdump(const char *label, const void *buf, int n) {
+  const uint8_t *ubuf = (const uint8_t *)buf;
+  printf("%s (%d bytes): ", label, n);
+  for (int i = 0; i < n; i++) {
+    printf("%02x", ubuf[i]);
+  }
+  printf("\n");
+}
+
+static void dump_openssl_error_stack(void) {
+  if (ERR_peek_error() != 0) {
+    printf("openssl error: %08lx\n", ERR_peek_error());
+    ERR_print_errors_fp(stderr);
+  }
+}
+
+static void state(const SSL *s) {
+  OSSL_HANDSHAKE_STATE st = SSL_get_state(s);
+  printf("state: %d (before:%d, init:%d, fin:%d)\n", st, SSL_in_before(s),
+         SSL_in_init(s), SSL_is_init_finished(s));
+}
+
+static void show_peer_certificate(const char *peer_name, const SSL *ssl) {
+  // check the peer certificate and chain
+  X509 *cert = SSL_get1_peer_certificate(ssl);
+  if (cert) {
+    char *name = X509_NAME_oneline(X509_get_subject_name(cert), NULL, 0);
+    printf("%s subject: %s\n", peer_name, name);
+    free(name);
+  } else {
+    printf("%s cert absent\n", peer_name);
+  }
+  X509_free(cert);
+
+  STACK_OF(X509) *chain = SSL_get_peer_cert_chain(ssl);
+  if (chain) {
+    printf("%d certs in %s chain\n", sk_X509_num(chain), peer_name);
+    for (int i = 0; i < sk_X509_num(chain); i++) {
+      X509 *cert = sk_X509_value(chain, i);
+      char *name = X509_NAME_oneline(X509_get_subject_name(cert), NULL, 0);
+      printf("  %d: %s\n", i, name);
+      free(name);
+    }
+  } else {
+    printf("%s cert chain absent\n", peer_name);
+  }
+}
+
+#endif // TESTS_COMMON_H
diff --git a/rustls-libssl/tests/server.c b/rustls-libssl/tests/server.c
@@ -14,38 +14,10 @@
 #include <sys/types.h>
 #include <unistd.h>
 
-#include <openssl/err.h>
 #include <openssl/ssl.h>
 #include <openssl/x509.h>
 
-static int trace(int rc, const char *str) {
-  printf("%s: %d\n", str, rc);
-  return rc;
-}
-
-#define TRACE(fn) trace((fn), #fn)
-
-static void hexdump(const char *label, const void *buf, int n) {
-  const uint8_t *ubuf = (const uint8_t *)buf;
-  printf("%s (%d bytes): ", label, n);
-  for (int i = 0; i < n; i++) {
-    printf("%02x", ubuf[i]);
-  }
-  printf("\n");
-}
-
-static void dump_openssl_error_stack(void) {
-  if (ERR_peek_error() != 0) {
-    printf("openssl error: %08lx\n", ERR_peek_error());
-    ERR_print_errors_fp(stderr);
-  }
-}
-
-static void state(const SSL *s) {
-  OSSL_HANDSHAKE_STATE st = SSL_get_state(s);
-  printf("state: %d (before:%d, init:%d, fin:%d)\n", st, SSL_in_before(s),
-         SSL_in_init(s), SSL_is_init_finished(s));
-}
+#include "helpers.h"
 
 int main(int argc, char **argv) {
   if (argc != 5) {
@@ -121,29 +93,7 @@ int main(int argc, char **argv) {
   printf("verify-result: %ld\n", SSL_get_verify_result(ssl));
   printf("cipher: %s\n", SSL_CIPHER_standard_name(SSL_get_current_cipher(ssl)));
 
-  // check the peer certificate and chain
-  X509 *cert = SSL_get1_peer_certificate(ssl);
-  if (cert) {
-    char *name = X509_NAME_oneline(X509_get_subject_name(cert), NULL, 0);
-    printf("client subject: %s\n", name);
-    free(name);
-  } else {
-    printf("client cert absent\n");
-  }
-  X509_free(cert);
-
-  STACK_OF(X509) *chain = SSL_get_peer_cert_chain(ssl);
-  if (chain) {
-    printf("%d certs in client chain\n", sk_X509_num(chain));
-    for (int i = 0; i < sk_X509_num(chain); i++) {
-      X509 *cert = sk_X509_value(chain, i);
-      char *name = X509_NAME_oneline(X509_get_subject_name(cert), NULL, 0);
-      printf("  %d: %s\n", i, name);
-      free(name);
-    }
-  } else {
-    printf("client cert chain absent\n");
-  }
+  show_peer_certificate("client", ssl);
 
   // read "request"
   while (1) {