Add missing $Header content that got lost during git migration

[packages/buffer.git] / buffer-debian-1.19-7.patch

--- buffer-1.19.orig/buffer.man
+++ buffer-1.19/buffer.man
@@ -37,7 +37,8 @@
 Use the given file as the output file.  The default is stdout.
 .TP
 .B \-S size
-After every chunk this size has been writen print out how much been writen so far.
+After every chunk of this size has been written, print out how much has
+been written so far. Also prints the total througput.
 By default this is not set.
 .TP
 .B \-s size
@@ -71,9 +72,9 @@
 throughput on some drives.)
 .TP
 .B \-B
-Force each block writen to be padded out to the blocksize.  This is needed by some tape
+Force each block written to be padded out to the blocksize.  This is needed by some tape
 and cartridge drives.  Defaults to unpadded.  This only affects the
-last block writen.
+last block written.
 .TP
 .B \-t
 On exiting print to stderr a brief message showing the total number of
@@ -82,7 +83,7 @@
 .B \-Z
 If reading/writing directly to a character device (like a tape drive)
 then after each gigabyte perform an lseek to the start of the file.
-Use this flag with extreme care.  If can only be used on devices where
+Use this flag with extreme care.  It can only be used on devices where
 an lseek does not rewind the tape but does reset the kernels position
 flags.  It is used to allow more than 2 gigabytes to be written.
 .PP
--- buffer-1.19.orig/buffer.c
+++ buffer-1.19/buffer.c
@@ -78,7 +78,7 @@
  * Christoph Wicki <wicki@iis.ethz.ch>
  *
  * Revision 1.7  1992/07/23  20:42:03  lmjm
- * Added 't' option to print total writen at end.
+ * Added 't' option to print total written at end.
  *
  * Revision 1.6  1992/04/07  19:57:30  lmjm
  * Added Kevins -B and -p options.
@@ -93,7 +93,7 @@
  * Make sofar printing size an option.
  * 
  * Revision 1.3  90/05/15  23:27:46  lmjm
- * Added -S option (show how much has been writen).
+ * Added -S option (show how much has been written).
  * Added -m option to specify how much shared memory to grab.
  * Now tries to fill this with blocks.
  * reader waits for writer to terminate and then frees the shared mem and sems.
@@ -109,6 +109,9 @@
  * Initial revision
  * 
  */
+#include <stdlib.h>
+#include <string.h>
+#include <limits.h>
 #include <unistd.h>
 #include <stdio.h>
 #include <signal.h>
@@ -120,15 +123,16 @@
 #include <sys/shm.h>
 #include <sys/sem.h>
 #include <sys/wait.h>
+#include <sys/time.h>
 #include "sem.h"
 
 #ifndef lint
 static char *rcsid = "$Header: /a/swan/home/swan/staff/csg/lmjm/src/buffer/RCS/buffer.c,v 1.19 1995/08/24 17:46:28 lmjm Exp lmjm $";
 #endif
 
-#ifndef __alpha
+#ifndef __linux__
 extern char *shmat();
-#endif /* __alpha */
+#endif /* __linux__ */
 
 /* General macros */
 #define TRUE 1
@@ -136,6 +140,14 @@
 #define K *1024
 #define M *1024*1024
 
+#if defined __GNUC__ || __STDC_VERSION__ >= 199901L
+#define NUM_K_TYPE unsigned long long
+#define NUM_K_FMT "llu"
+#else
+#define NUM_K_TYPE unsigned long
+#define NUM_K_FMT "lu"
+#endif
+
 /* Some forward declarations */
 void byee();
 void start_reader_and_writer();
@@ -159,7 +171,7 @@
 void pr_out();
 void end_writer();
 
-/* When showing print a note every this many bytes writen */
+/* When showing print a note every this many bytes written */
 int showevery = 0;
 #define PRINT_EVERY 10 K
 
@@ -250,7 +262,9 @@
 
 char print_total = 0;
 /* Number of K output */
-unsigned long outk = 0;
+NUM_K_TYPE outk = 0;
+
+struct timeval starttime;
 
 int
 main( argc, argv )
@@ -262,6 +276,8 @@
 	set_handlers();
 
 	buffer_allocate();
+	
+	gettimeofday(&starttime, NULL);
 
 	start_reader_and_writer();
 
@@ -287,7 +303,7 @@
 
 	while( (c = getopt( argc, argv, "BS:Zdm:s:b:p:u:ti:o:z:" )) != -1 ){
 		switch( c ){
-		case 't': /* Print to stderr the total no of bytes writen */
+		case 't': /* Print to stderr the total no of bytes written */
 			print_total++;
 			break;
 		case 'u': /* pause after write for given microseconds */
@@ -384,8 +400,8 @@
 			fprintf( stderr, "Usage: %s [-B] [-t] [-S size] [-m memsize] [-b blocks] [-p percent] [-s blocksize] [-u pause] [-i infile] [-o outfile] [-z size]\n",
 				progname );
 			fprintf( stderr, "-B = blocked device - pad out last block\n" );
-			fprintf( stderr, "-t = show total amount writen at end\n" );
-			fprintf( stderr, "-S size = show amount writen every size bytes\n" );
+			fprintf( stderr, "-t = show total amount written at end\n" );
+			fprintf( stderr, "-S size = show amount written every size bytes\n" );
 			fprintf( stderr, "-m size = size of shared mem chunk to grab\n" );
 			fprintf( stderr, "-b num = number of blocks in queue\n" );
 			fprintf( stderr, "-p percent = don't start writing until percent blocks filled\n" );
@@ -397,6 +413,11 @@
 			byee( -1 );
 		}
 	}
+	
+	if (argc > optind) {
+		fprintf( stderr, "too many arguments\n" );
+		byee( -1 );
+	}
 
 	if (zflag) showevery = blocksize;
 
@@ -507,9 +528,9 @@
 	get_buffer();
 
 	if( debug )
-		fprintf( stderr, "%s pbuffer is 0x%08x, buffer_size is %d [%d x %d]\n",
+		fprintf( stderr, "%s pbuffer is 0x%08lx, buffer_size is %d [%d x %d]\n",
 			proc_string,
-			(char *)pbuffer, buffer_size, blocks, blocksize );
+			(unsigned long)pbuffer, buffer_size, blocks, blocksize );
 
 #ifdef SYS5
 	memset( (char *)pbuffer, '\0', buffer_size );
@@ -528,7 +549,17 @@
 	pbuffer->blocks_free_lock = 1;
 	/* start this off so lock() can be called on it for each block
 	 * till all the blocks are used up */
+	/* Initializing the semaphore to "blocks - 1" causes a hang when using option
+	 * "-p 100" because it always keeps one block free, so we'll never reach 100% fill
+	 * level. However, there doesn't seem to be a good reason to keep one block free,
+	 * so we initialize the semaphore to "blocks" instead.
+	 * <mbuck@debian.org> 2004-01-11
+	 */	
+#if 0
 	sem_set( pbuffer->semid, pbuffer->blocks_free_lock, blocks - 1 );
+#else
+	sem_set( pbuffer->semid, pbuffer->blocks_free_lock, blocks );
+#endif
 
 	/* Detattach the shared memory so the fork doesnt do anything odd */
 	shmdt( (char *)pbuffer );
@@ -648,7 +679,7 @@
 int
 fill_block()
 {
-	int bytes;
+	int bytes = 0;
 	char *start;
 	int toread;
 	static char eof_reached = 0;
@@ -707,7 +738,7 @@
 {
 	int filled = 0;
 	int maxfilled = (blocks * percent) / 100;
-	int first_block;
+	int first_block = 0;
 
 	if( debug )
 		fprintf( stderr, "\tW: Entering writer\n blocks = %d\n maxfilled = %d\n",
@@ -742,7 +773,7 @@
 	}
 
 	if( print_total ){
-		fprintf( stderr, "Kilobytes Out %lu\n", outk );
+		fprintf( stderr, "Kilobytes Out %" NUM_K_FMT "\n", outk );
 	}
 
 	if( debug )
@@ -783,14 +814,14 @@
 void
 write_block_to_stdout()
 {
-	static unsigned long out = 0;
+	unsigned long out = 0;
 	static unsigned long last_gb = 0;
-	static unsigned long next_k = 0;
+	static NUM_K_TYPE next_k = 0;
 	int written;
 
 	if( next_k == 0 && showevery ){
 		if( debug > 3 )
-			fprintf( stderr, "W: next_k = %lu showevery = %d\n", next_k, showevery );
+			fprintf( stderr, "W: next_k = %" NUM_K_FMT " showevery = %d\n", next_k, showevery );
 		showevery = showevery / 1024;
 		next_k = showevery;
 	}
@@ -798,7 +829,7 @@
 	if( (written = write( fdout, curr_block->data, curr_block->bytes )) != curr_block->bytes ){
 		report_proc();
 		perror( "write of data failed" );
-		fprintf( stderr, "bytes to write=%d, bytes written=%d, total written %10luK\n", curr_block->bytes, written, outk );
+		fprintf( stderr, "bytes to write=%d, bytes written=%d, total written %10" NUM_K_FMT "K\n", curr_block->bytes, written, outk );
 		byee( -1 );
 	}
 
@@ -825,7 +856,7 @@
 	}
 	if( showevery ){
 		if( debug > 3 )
-			fprintf( stderr, "W: outk = %lu, next_k = %lu\n",
+			fprintf( stderr, "W: outk = %" NUM_K_FMT ", next_k = %" NUM_K_FMT "\n",
 				outk, next_k );
 		if( outk >= next_k ){
 			pr_out();
@@ -914,13 +945,12 @@
 do_size( arg )
 	char *arg;
 {
-	char format[ 20 ];
-	int ret;
+	int ret = 0;
 
-	*format = '\0';
-	sscanf( arg, "%d%s", &ret, format );
+	char unit = '\0';
+	sscanf( arg, "%d%c", &ret, &unit );
 
-	switch( *format ){
+	switch( unit ){
 	case 'm':
 	case 'M':
 		ret = ret K K;
@@ -941,7 +971,36 @@
 void
 pr_out()
 {
-	fprintf( stderr, " %10luK\r", outk );
+	struct timeval now;
+	unsigned long ms_delta, k_per_s;
+	
+	gettimeofday(&now, NULL);
+	ms_delta = (now.tv_sec - starttime.tv_sec) * 1000
+		   + (now.tv_usec - starttime.tv_usec) / 1000;
+	if (ms_delta) {
+		/* Use increased accuracy for small amounts of data,
+		 * decreased accuracy for *huge* throughputs > 4.1GB/s
+		 * to avoid division by 0. This will overflow if your
+		 * machine's throughput exceeds 4TB/s - you deserve to
+		 * loose if you're still using 32 bit longs on such a
+		 * beast ;-)
+		 * <mbuck@debian.org>
+		 */
+		if (outk < ULONG_MAX / 1000) {
+			k_per_s = (outk * 1000) / ms_delta;
+		} else if (ms_delta >= 1000) {
+			k_per_s = outk / (ms_delta / 1000);
+		} else {
+			k_per_s = (outk / ms_delta) * 1000;
+		}
+		fprintf( stderr, " %10" NUM_K_FMT "K, %10luK/s\r", outk, k_per_s );
+	} else {
+		if (outk) {
+			fprintf( stderr, " %10" NUM_K_FMT "K,          ?K/s\r", outk );
+		} else {
+			fprintf( stderr, "          0K,          0K/s\r");
+		}
+	}
 }
 
 #ifdef SYS5
--- buffer-1.19.orig/sem.c
+++ buffer-1.19/sem.c
@@ -27,6 +27,7 @@
  * semaphores */
 
 #include <stdio.h>
+#include <unistd.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/ipc.h>
@@ -34,6 +35,20 @@
 #include <errno.h>
 #include "sem.h"
 
+/* If we've got a version of glibc that doesn't define union semun, we do
+ * it ourseleves like in semctl(2). Otherwise, fall back to the original
+ * buffer behaviour of defining it (differetly!) only on some systems.
+ *
+ * mbuck@debian.org, 1999/08/29
+ */
+#if defined(__GNU_LIBRARY__) && defined(_SEM_SEMUN_UNDEFINED)
+union semun {
+	int val;			/* value for SETVAL              */
+	struct semid_ds *buf;		/* buffer for IPC_STAT & IPC_SET */
+	unsigned short int *array;	/* array for GETALL & SETALL     */
+	struct seminfo *__buf;		/* buffer for IPC_INFO           */
+};
+#else
 #if defined(SYS5) || defined(ultrix) || defined(_AIX)
 union semun {
 	int val;
@@ -41,6 +56,7 @@
 	ushort *array;
 };
 #endif
+#endif   
 
 /* IMPORTS */
 
@@ -95,7 +111,7 @@
 	return sem;
 }
 
-static
+static void
 do_sem( sem_id, pbuf, err )
 	int sem_id;
 	struct sembuf *pbuf;
@@ -149,10 +165,13 @@
 remove_sems( sem_id )
 	int sem_id;
 {
+	union semun arg;
+
 	if( sem_id == -1 )
 		return;
 
-	if( semctl( sem_id, 0, IPC_RMID, NULL ) == -1 ){
+	arg.val = 0;
+	if( semctl( sem_id, 0, IPC_RMID, arg ) == -1 ){
 		report_proc();
 		perror( "internal error, failed to remove semaphore" );
 	}