Commit 2558634f authored by rl1987's avatar rl1987
Browse files

Tool to print expiration date of ed25519_signing_cert

parent 10c782d7

src/tools/Makefile.nmake

+4 −1
Original line number Diff line number Diff line 
all: tor-resolve.exe tor-gencert.exe

all: tor-resolve.exe tor-gencert.exe tor-print-ed-signing-cert.exe



CFLAGS = /I ..\win32 /I ..\..\..\build-alpha\include /I ..\common /I ..\or
@@ -15,5 +15,8 @@ tor-gencert.exe: tor-gencert.obj 
tor-resolve.exe: tor-resolve.obj

	$(CC) $(CFLAGS) $(LIBS) ..\common\*.lib tor-resolve.obj



tor-print-ed-signing-cert.exe: tor-print-ed-signing-cert.obj

	$(CC) $(CFLAGS) $(LIBS) ..\common\*.lib tor-print-ed-signing-cert.obj



clean:

	del *.obj *.lib *.exe

src/tools/include.am

+10 −1
Original line number Diff line number Diff line 
bin_PROGRAMS+= src/tools/tor-resolve src/tools/tor-gencert

bin_PROGRAMS+= src/tools/tor-resolve src/tools/tor-gencert src/tools/tor-print-ed-signing-cert



if COVERAGE_ENABLED

noinst_PROGRAMS+= src/tools/tor-cov-resolve src/tools/tor-cov-gencert
@@ -29,6 +29,15 @@ src_tools_tor_gencert_LDADD = \ 
	@TOR_LIB_MATH@ @TOR_ZLIB_LIBS@ @TOR_OPENSSL_LIBS@ \

	@TOR_LIB_WS32@ @TOR_LIB_IPHLPAPI@ @TOR_LIB_GDI@ @TOR_LIB_USERENV@ @CURVE25519_LIBS@



src_tools_tor_print_ed_signing_cert_SOURCES = src/tools/tor-print-ed-signing-cert.c

src_tools_tor_print_ed_signing_cert_LDFLAGS = @TOR_LDFLAGS_zlib@ @TOR_LDFLAGS_openssl@

src_tools_tor_print_ed_signing_cert_LDADD = \

	src/trunnel/libor-trunnel.a \

        $(TOR_CRYPTO_LIBS) \

        $(TOR_UTIL_LIBS) \

	@TOR_LIB_MATH@ @TOR_OPENSSL_LIBS@ \

	@TOR_LIB_WS32@ @TOR_LIB_USERENV@



if COVERAGE_ENABLED

src_tools_tor_cov_gencert_SOURCES = src/tools/tor-gencert.c

src_tools_tor_cov_gencert_CPPFLAGS = $(AM_CPPFLAGS) $(TEST_CPPFLAGS)

src/tools/tor-print-ed-signing-cert.c

0 → 100644
+65 −0
Original line number Diff line number Diff line 
/* Copyright (c) 2007-2018, The Tor Project, Inc. */

/* See LICENSE for licensing information */



#include <errno.h>

#include <stdio.h>

#include <string.h>

#include <time.h>



#include "ed25519_cert.h"

#include "lib/crypt_ops/crypto_format.h"

#include "lib/malloc/util_malloc.h"



int

main(int argc, char **argv)

{

  ed25519_cert_t *cert = NULL;



  if (argc != 2) {

    fprintf(stderr, "Usage:\n");

    fprintf(stderr, "%s <path to ed25519_signing_cert file>\n", argv[0]);

    return -1;

  }



  const char *filepath = argv[1];

  char *got_tag = NULL;



  uint8_t certbuf[256];

  ssize_t cert_body_len = crypto_read_tagged_contents_from_file(

                 filepath, "ed25519v1-cert",

                 &got_tag, certbuf, sizeof(certbuf));



  if (cert_body_len <= 0) {

    fprintf(stderr, "crypto_read_tagged_contents_from_file failed with "

                    "error: %s\n", strerror(errno));

    return -2;

  }



  if (!got_tag) {

    fprintf(stderr, "Found no tag\n");

    return -3;

  }



  if (strcmp(got_tag, "type4") != 0) {

    fprintf(stderr, "Wrong tag: %s\n", got_tag);

    return -4;

  }



  tor_free(got_tag);



  ssize_t parsed = ed25519_cert_parse(&cert, certbuf, cert_body_len);

  if (parsed <= 0) {

    fprintf(stderr, "ed25519_cert_parse failed with return value %zd\n",

            parsed);

    return -5;

  }



  time_t expires_at = (time_t)cert->exp_field * 60 * 60;



  printf("Expires at: %s", ctime(&expires_at));



  ed25519_cert_free(cert);



  return 0;

}