Change style and license

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 75 insertions, 97 deletions

diff --git a/src/benchmark.c b/src/benchmark.c
index 115fcc5..1ce7da9 100644
--- a/src/benchmark.c
+++ b/src/benchmark.c
@@ -1,28 +1,11 @@
-/**
- * libkeccak – Keccak-family hashing library
- * 
- * Copyright © 2014, 2015, 2017  Mattias Andrée (maandree@kth.se)
- * 
- * This library is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- * 
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- * 
- * You should have received a copy of the GNU Affero General Public License
- * along with this library.  If not, see <http://www.gnu.org/licenses/>.
- */
+/* See LICENSE file for copyright and license details. */
 #include <libkeccak.h>
 
+#include <fcntl.h>
 #include <stdio.h>
 #include <string.h>
-#include <fcntl.h>
-#include <unistd.h>
 #include <time.h>
+#include <unistd.h>
 
 
 #ifndef MESSAGE_FILE
@@ -66,96 +49,91 @@
  * 
  * @return  Zero on success, 1 on error
  */
-int main(void)
+int
+main(void)
 {
-  char message[MESSAGE_LEN];
-  libkeccak_spec_t spec;
-  libkeccak_state_t state;
-  char hashsum[OUTPUT / 8];
+	char message[MESSAGE_LEN];
+	libkeccak_spec_t spec;
+	libkeccak_state_t state;
+	char hashsum[OUTPUT / 8];
 #ifndef IGNORE_BEHEXING
-  char hexsum[OUTPUT / 8 * 2 + 1];
+	char hexsum[OUTPUT / 8 * 2 + 1];
 #endif
-  struct timespec start, end;
-  long i, r;
-  
-  /* Fill message with content from the file. */
-  {
-    int fd;
-    ssize_t got;
-    size_t ptr;
-    if (fd = open(MESSAGE_FILE, O_RDONLY), fd < 0)
-      return perror("open"), 1;
-    for (ptr = 0; ptr < MESSAGE_LEN; ptr += (size_t)got)
-      if (got = read(fd, message, MESSAGE_LEN - ptr), got <= 0)
-	return perror("read"), close(fd), 1;
-    close(fd);
-  }
-  
-  /* Initialise state. */
-  spec.bitrate = BITRATE;
-  spec.capacity = CAPACITY;
-  spec.output = OUTPUT;
-  if (libkeccak_state_initialise(&state, &spec))
-    return perror("libkeccak_state_initialise"), 1;
-  
-  /* Get start-time. */
-  if (clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &start) < 0)
-    return perror("clock_gettime"), 1;
-  
-  /* Run benchmarking loop. */
-  for (r = 0; r < RERUNS; r++)
-    {
-      /* Updates. */
+	struct timespec start, end;
+	long i, r;
+
+	/* Fill message with content from the file. */
+	int fd;
+	ssize_t got;
+	size_t ptr;
+	if (fd = open(MESSAGE_FILE, O_RDONLY), fd < 0)
+		return perror("open"), 1;
+	for (ptr = 0; ptr < MESSAGE_LEN; ptr += (size_t)got)
+		if (got = read(fd, message, MESSAGE_LEN - ptr), got <= 0)
+			return perror("read"), close(fd), 1;
+	close(fd);
+
+	/* Initialise state. */
+	spec.bitrate = BITRATE;
+	spec.capacity = CAPACITY;
+	spec.output = OUTPUT;
+	if (libkeccak_state_initialise(&state, &spec))
+		return perror("libkeccak_state_initialise"), 1;
+
+	/* Get start-time. */
+	if (clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &start) < 0)
+		return perror("clock_gettime"), 1;
+
+	/* Run benchmarking loop. */
+	for (r = 0; r < RERUNS; r++) {
+		/* Updates. */
 #if UPDATE_RUNS > 0
-      for (i = 0; i < UPDATE_RUNS; i++)
-	if (libkeccak_fast_update(&state, message, MESSAGE_LEN) < 0)
-	  return perror("libkeccak_update"), 1;
+		for (i = 0; i < UPDATE_RUNS; i++)
+			if (libkeccak_fast_update(&state, message, MESSAGE_LEN) < 0)
+				return perror("libkeccak_update"), 1;
 #endif
-      
-      /* Digest. */
-      if (libkeccak_fast_digest(&state, NULL, 0, 0, NULL, hashsum) < 0)
-	return perror("libkeccak_digest"), 1;
+
+		/* Digest. */
+		if (libkeccak_fast_digest(&state, NULL, 0, 0, NULL, hashsum) < 0)
+			return perror("libkeccak_digest"), 1;
 #ifndef IGNORE_BEHEXING
-      libkeccak_behex_lower(hexsum, hashsum, OUTPUT / 8);
+		libkeccak_behex_lower(hexsum, hashsum, OUTPUT / 8);
 #endif
-      
-      /* Fast squeezes. */
+
+		/* Fast squeezes. */
 #if FAST_SQUEEZE_RUNS > 0
-      libkeccak_fast_squeeze(&state, FAST_SQUEEZE_RUNS);
+		libkeccak_fast_squeeze(&state, FAST_SQUEEZE_RUNS);
 #endif
-      
-      /* Slow squeezes. */
+
+		/* Slow squeezes. */
 #if SLOW_SQUEEZE_RUNS > 0
-      for (i = 0; i < SLOW_SQUEEZE_RUNS; i++)
-	{
-	  libkeccak_squeeze(&state, hashsum);
+		for (i = 0; i < SLOW_SQUEEZE_RUNS; i++) {
+			libkeccak_squeeze(&state, hashsum);
 # ifndef IGNORE_BEHEXING
-	  libkeccak_behex_lower(hexsum, hashsum, OUTPUT / 8);
+			libkeccak_behex_lower(hexsum, hashsum, OUTPUT / 8);
 # endif
-	}
+		}
 #endif
-    }
-  
-  /* Get end-time. */
-  if (clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &end) < 0)
-    return perror("clock_gettime"), -1;
-  
-  /* Print execution-time. */
-  end.tv_sec -= start.tv_sec;
-  end.tv_nsec -= start.tv_nsec;
-  if (end.tv_nsec < 0)
-    {
-      end.tv_sec--;
-      end.tv_nsec += 1000000000L;
-    }
-  printf("%03li%09li\n", (long)(end.tv_sec), end.tv_nsec);
-  
-  /* Release resources and exit. */
-  libkeccak_state_fast_destroy(&state);
-  return 0;
-  
+	}
+
+	/* Get end-time. */
+	if (clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &end) < 0)
+		return perror("clock_gettime"), -1;
+
+	/* Print execution-time. */
+	end.tv_sec -= start.tv_sec;
+	end.tv_nsec -= start.tv_nsec;
+	if (end.tv_nsec < 0) {
+		end.tv_sec--;
+		end.tv_nsec += 1000000000L;
+	}
+	printf("%03li%09li\n", (long)(end.tv_sec), end.tv_nsec);
+
+	/* Release resources and exit. */
+	libkeccak_state_fast_destroy(&state);
+	return 0;
+
 #if (UPDATE_RUNS == 0) && (SLOW_SQUEEZE_RUNS == 0)
-  (void) i;
+	(void) i;
 #endif
 }
-