sysutils/copytape: include errno.h for errno

errno must be accessed by a macro from errno.h.

Tidy includes and add unistd.h for read/write.

Consolidate patches for easy of maintenance.

This code is borderline useless and certainly broken with modern tape
sizes due to the use of ints for sizes.

PR:		281781
Approved by:	sjroz@verizon.net (maintainer)

1 files changed, 33 insertions, 0 deletions

diff --git a/sysutils/copytape/files/patch-copytape.c b/sysutils/copytape/files/patch-copytape.c
new file mode 100644
index 000000000000..8dc9a0708c88
--- /dev/null
+++ b/sysutils/copytape/files/patch-copytape.c
@@ -0,0 +1,33 @@
+--- copytape.c.orig
++++ copytape.c
+@@ -28,15 +28,18 @@
+  */
+ 
+ 
+-#include <stdio.h>
+ #include <sys/types.h>
+ #include <sys/ioctl.h>
+ #include <sys/mtio.h>
+ #include <sys/file.h>
+ 
+-extern int      errno;
++#include <errno.h>
++#include <stdio.h>
++#include <stdlib.h>
++#include <string.h>
++#include <unistd.h>
+ 
+-#define BUFLEN		262144	/* max tape block size */
++#define BUFLEN		(1024*1024)	/* max tape block size */
+ #define TAPE_MARK	-100	/* return record length if we read a
+ 				 * tape mark */
+ #define END_OF_TAPE	-101	/* 2 consecutive tape marks */
+@@ -149,7 +152,7 @@
+ 	    len = input(from);
+ 	} while (len > 0);
+ 	if (len == FORMAT_ERROR) {
+-	    perror(stderr, "copytape: format error on skip");
++	    perror("copytape: format error on skip");
+ 	    exit(-1);
+ 	};
+ 	if (len == END_OF_TAPE) {