From 6ac3a8b0cd1946e90a4c997e8fad1bfc63890abd Mon Sep 17 00:00:00 2001
From: Nick Mathewson <nickm@freehaven.net>
Date: Sat, 3 Jan 2009 21:43:05 -0500
Subject: Command-line option to dump SHA1 digests of all source files.

Now, when you call tor --digests, it dumps the SHA1 digest of each
source file that Tor was built with.  We support both 'sha1sum' and
'openssl sha1'.  If the user is building from a tarball and they
haven't edited anything, they don't need any program that calculates
SHA1.  If they _have_ modified a file but they don't have a program to
calculate SHA1, we try to build so we do not output digests.
---
 src/common/Makefile.am | 14 ++++++++++++++
 src/common/util.c      |  7 +++++++
 src/common/util.h      |  2 ++
 3 files changed, 23 insertions(+)

(limited to 'src/common')

diff --git a/src/common/Makefile.am b/src/common/Makefile.am
index 105c413343..78c8ab5516 100644
--- a/src/common/Makefile.am
+++ b/src/common/Makefile.am
@@ -1,6 +1,8 @@
 
 noinst_LIBRARIES = libor.a libor-crypto.a
 
+EXTRA_DIST = common_sha1.i
+
 #CFLAGS  = -Wall -Wpointer-arith -O2
 
 if USE_OPENBSD_MALLOC
@@ -14,3 +16,15 @@ libor_a_SOURCES = address.c log.c util.c compat.c container.c mempool.c \
 libor_crypto_a_SOURCES = crypto.c aes.c tortls.c torgzip.c
 
 noinst_HEADERS = address.h log.h crypto.h test.h util.h compat.h aes.h torint.h tortls.h strlcpy.c strlcat.c torgzip.h container.h ht.h mempool.h memarea.h ciphers.inc
+
+common_sha1.i: $(libor_SOURCES) $(libor_crypto_a_SOURCES) $(noinst_HEADERS)
+	if test "@SHA1SUM@" != none; then \
+	  @SHA1SUM@ $(libor_SOURCES) $(libor_crypto_a_SOURCES) $(noinst_HEADERS) | @SED@ -n 's/^\(.*\)$$/"\1\\n"/p' > common_sha1.i; \
+	elif test "@OPENSSL@" != none; then \
+	  @OPENSSL@ sha1 $(libor_SOURCES) $(libor_crypto_a_SOURCES) $(noinst_HEADERS) | @SED@ -n 's/SHA1(\(.*\))= \(.*\)/"\2  \1\\n"/p' > common_sha1.i; \
+	else \
+	  rm common_sha1.i; \
+	  touch common_sha1.i; \
+	fi
+
+util.o: common_sha1.i
diff --git a/src/common/util.c b/src/common/util.c
index 6310811961..bb227e4b0c 100644
--- a/src/common/util.c
+++ b/src/common/util.c
@@ -2562,3 +2562,10 @@ write_pidfile(char *filename)
   }
 }
 
+const char *
+libor_get_digests(void)
+{
+  return ""
+#include "common_sha1.i"
+    ;
+}
diff --git a/src/common/util.h b/src/common/util.h
index cbf5334c15..363a23b661 100644
--- a/src/common/util.h
+++ b/src/common/util.h
@@ -294,5 +294,7 @@ void start_daemon(void);
 void finish_daemon(const char *desired_cwd);
 void write_pidfile(char *filename);
 
+const char *libor_get_digests(void);
+
 #endif
 
-- 
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