🚀 go-pugleaf

Subject: ~p causes 'cu'/'tip' to crash   (#68)
Index:	usr.bin/tip/cmds.c 2.11BSD

Description:
	Using the  ~p command to "put" a file to a remote system
	causes a segmentation violation.

Repeat-By:
	'cu' to a system and use ~p to transfer a file.  The [put] prompt
	appears.  Enter the filename followed by a return and observe
	the segmentation violation.

Fix:
	The local variable "copynamex" conflicted with the global buffer
	"copyname".  Renaming the "copynamex" to "cpynamex" to make it 
	unique fixed the problem.

	Apply the patch below and reinstall 'cu'.
===========================================================================
*** /usr/src/usr.bin/tip/cmds.c.old	Tue Sep 20 15:15:54 1988
--- /usr/src/usr.bin/tip/cmds.c	Fri Jul 24 09:05:01 1992
***************
*** 352,358 ****
  	char line[BUFSIZ];
  	int argc;
  	char *expand();
! 	char *copynamex;
  
  	if (prompt("[put] ", copyname))
  		return;
--- 352,358 ----
  	char line[BUFSIZ];
  	int argc;
  	char *expand();
! 	char *cpynamex;
  
  	if (prompt("[put] ", copyname))
  		return;
***************
*** 362,370 ****
  	}
  	if (argc == 1)
  		argv[1] = argv[0];
! 	copynamex = expand(argv[0]);
! 	if ((fd = fopen(copynamex, "r")) == NULL) {
! 		printf("%s: cannot open\r\n", copynamex);
  		return;
  	}
  	if (boolean(value(ECHOCHECK)))
--- 362,370 ----
  	}
  	if (argc == 1)
  		argv[1] = argv[0];
! 	cpynamex = expand(argv[0]);
! 	if ((fd = fopen(cpynamex, "r")) == NULL) {
! 		printf("%s: cannot open\r\n", cpynamex);
  		return;
  	}
  	if (boolean(value(ECHOCHECK)))