--- freem/src/service.c	2025/03/24 04:05:36	1.12
+++ freem/src/service.c	2026/01/07 19:51:33	1.14
@@ -1,5 +1,5 @@
 /*
- *   $Id: service.c,v 1.12 2025/03/24 04:05:36 snw Exp $
+ *   $Id: service.c,v 1.14 2026/01/07 19:51:33 snw Exp $
  *    terminal and sequential I/O handling,
  *    file and global locking
  *
@@ -25,6 +25,12 @@
  *   along with FreeM.  If not, see <https://www.gnu.org/licenses/>.
  *
  *   $Log: service.c,v $
+ *   Revision 1.14  2026/01/07 19:51:33  snw
+ *   Fix segfault in reverse $QUERY
+ *
+ *   Revision 1.13  2025/04/09 19:52:02  snw
+ *   Eliminate as many warnings as possible while building with -Wall
+ *
  *   Revision 1.12  2025/03/24 04:05:36  snw
  *   Replace crlf with frm_crlf to avoid symbol conflict with readline on OS/2
  *
@@ -65,6 +71,7 @@
 
 #define MAXZAS NESTLEVLS
 #include "mpsdef.h"
+#include "shmmgr.h"
 
 #include <time.h>
 
@@ -91,10 +98,9 @@ int scosgr (short att, short bwflag);
 #  endif
 #  define termio termios
 # else
-#  if !defined(MSDOS)
+#  if !defined(MSDOS) && !defined(__linux__)
 #    include <termio.h>
-#  endif
-#  if defined(__OS2__)
+#  else
 #    include <termios.h>
 #    define termio termios
 #  endif
@@ -103,6 +109,7 @@ int scosgr (short att, short bwflag);
 # include <termios.h>
 #endif
 
+
 #include <fcntl.h>
 
 /* search 'string' for occurence of 'pattrn'
@@ -2761,13 +2768,15 @@ void part_ref (struct vtstyp *scr, short
     short l;
     short max;
     unsigned char exa;
+#if !defined(LINUX) && defined(COLOR)    
     unsigned char exc;
+#endif    
     short i;
     unsigned char *linea;
     unsigned char *linex;
     unsigned char *linec;
     unsigned char ch;
-    unsigned char tmp[1300];
+    char tmp[1300]; /* was unsigned char tmp... (snw 4-9-2025) */
 
     /* build up alternate screen */
     /* reset SGR,TBM;white on black,go HOME; 25 Lines */
@@ -2837,7 +2846,10 @@ void part_ref (struct vtstyp *scr, short
         }
 
         exa = ~linea[0];		/* dummy value to trigger argument codes on 1st char */
+
+#if !defined(LINUX) && defined(COLOR)        
         exc = ~linec[0];		/* dummy value to trigger argument codes on 1st char */
+#endif
         
         for (l = 0; l <= max; l++) {
             
@@ -3415,9 +3427,7 @@ void read_m (char *stuff, long read_time
     static char term_key[256] = {EOL, EOL};
     static short int escptr;
     static short int single;
-    static short int timoflag;		/* timeout flag */
-    static long int timex;
-    static short int timexms;
+    static short int timoflag;		/* timeout flag */    
     static short int i;
     static int ch;
     
@@ -3439,10 +3449,7 @@ void read_m (char *stuff, long read_time
     stuff[0] = EOL;
     
     if (length < 1) single = length = 1;
-    
-    timex = 0L;
-    timexms = 0;
-
+        
     if (io == HOME) opnfile[HOME] = stdin;
 
     if (io == HOME && !frm_filter) {
@@ -4338,6 +4345,11 @@ int locking (int fd, int action, long co
 
     struct flock lock;
 
+    /* skip locking if we own the TP semaphore */
+    if (shm_config->hdr->tp_owner == pid) {
+        return 0;
+    }
+    
     lock.l_whence = 1;			/* lock from current position */
     lock.l_start = 0;
     lock.l_len = count;