Change serial port iflag from IGNPAR to INPCK per bobaboba 11/83 debug

main.c

@@ -83,6 +83,7 @@
 //                                 so that BREAKs are handled correctly via setjmp/longjmp
 //                                 Update tu58drive.c to intercept rx byte read routine to
 //                                 detect input line BREAK and process as required.
+// v2.0b - 03 Apr 2018 - donorth - Change iflags from PARMRK|IGNPAR to PARMRK|INPCK
 //
 
 
@@ -93,7 +94,7 @@
 static char copyright[] = "(C) 2005-2017 Don North <ak6dn" "@" "mindspring.com>, " \
                           "(C) 1984 Dan Ts'o <Rockefeller University>";
 
-static char version[] = "tu58 tape emulator v2.0a";
+static char version[] = "tu58 tape emulator v2.0b";
 
 static char port[32] = "1"; // default port number (COM1, /dev/ttyS0)
 static long speed = 9600; // default line speed

makefile

@@ -9,25 +9,26 @@ ifeq ($(OPSYS),Darwin)
 # mac: UNIX comms model, but on MACOSX
 OPTIONS = -DMACOSX
 LFLAGS = -lpthread
+BINDIR = /usr/local/bin
 else ifeq ($(OPSYS:CYGWIN%=CYGWIN),CYGWIN)
 # win: WINDOWS comms model under CYGWIN (any version)
 OPTIONS = -DCYGWIN -DWINCOMM
 LFLAGS = -lpthread -lrt
+BINDIR = /cygdrive/e/DEC/tools/exe
 else ifeq ($(OPSYS),Linux)
 # unix: UNIX comms model under LINUX, use PARMRK serial mode
 OPTIONS = -DLINUX -DUSE_PARMRK
 LFLAGS = -lpthread -lrt
+BINDIR = /usr/local/bin
 else # unknown environment
 OPTIONS =
 LFLAGS = -lpthread -lrt
+BINDIR = /usr/local/bin
 endif
 
 # default program name, redefine PROG=xxx on command line if wanted
 PROG = tu58em
 
-# put your binary installation directory here...
-BINDIR = /cygdrive/e/DEC/tools/exe
-
 # compiler flags and libraries
 CC = gcc
 CFLAGS = -I. -O3 -Wall -c $(OPTIONS)

serial.c

@@ -586,10 +586,10 @@ void devinit (char *port,
     // open serial port
     int32_t euid = geteuid();
     int32_t uid = getuid();
-    setreuid(euid, -1);
+    if (setreuid(euid, -1)) fatal("setreuid(euid,-1) failed");
     if (sscanf(port, "%u", &n) == 1) sprintf(name, "/dev/ttyS%u", n-1); else strcpy(name, port);
     if ((device = open(name, O_RDWR|O_NDELAY|O_NOCTTY)) < 0) fatal("no serial line [%s]", name);
-    setreuid(uid, euid);
+    if (setreuid(uid, euid)) fatal("setreuid(uid,euid) failed");
 
     // get current line params, error if not a serial port
     if (tcgetattr(device, &lineSave)) fatal("not a serial device [%s]", name);
@@ -602,7 +602,7 @@ void devinit (char *port,
 		       INLCR  | IGNCR  | ICRNL   | IXON  | IXOFF  |
 		       IUCLC  | IXANY  | PARMRK  | IGNPAR );
 #ifdef USE_PARMRK
-    line.c_iflag |=  ( PARMRK | IGNPAR );
+    line.c_iflag |=  ( PARMRK | INPCK );
 #else // !USE_PARMRK
     line.c_iflag |=  ( 0 );
 #endif // !USE_PARMRK