tools: add shared current directory handle helper

Add tool_current_dhandle_only() as a small wrapper for callers that only need
the current NetWare directory handle.

Replace the local creator_current_dhandle() and tests_current_dhandle()
implementations in CREATOR and NWTESTS with the shared helper. This removes
duplicate requester-current-directory code without changing behavior.

creator.c

@@ -90,29 +90,6 @@ static void creator_usage(void)
   fprintf(stdout, "  CREATOR F:\\CIXTEST\\SUP\\S_SUP.TXT /ARCHIVE MARIO\n");
 }
 
-static int creator_get_current_drive(void)
-{
-  REGS regs;
-
-  regs.h.ah = 0x19;
-  int86(0x21, &regs, &regs);
-  return((int)regs.h.al);
-}
-
-static int creator_current_dhandle(uint8 *dhandle)
-{
-  uint8 connid = 0;
-  uint8 flags = 0;
-  int drive;
-
-  drive = creator_get_current_drive();
-  if (get_drive_info((uint8)drive, &connid, dhandle, &flags))
-    return(-1);
-  if (!connid || (flags & 0x80))
-    return(-1);
-  return(0);
-}
-
 static int hex_value(int c)
 {
   if (c >= '0' && c <= '9') return(c - '0');
@@ -516,7 +493,7 @@ int func_creator(int argc, char *argv[], int mode)
     return(1);
   }
 
-  if (creator_current_dhandle(&dhandle)) {
+  if (tool_current_dhandle_only(&dhandle)) {
     fprintf(stdout, "CREATOR: current drive is not a network drive\n");
     if (oldcwd[0]) chdir(oldcwd);
     return(1);

net.h

@@ -183,6 +183,7 @@ extern int   tool_is_files_option(char *s);
 extern int   tool_is_subdirs_option(char *s);
 extern int   tool_get_current_drive(void);
 extern int   tool_current_dhandle(uint8 *connid, uint8 *dhandle);
+extern int   tool_current_dhandle_only(uint8 *dhandle);
 extern int   tool_current_prefix(char *out, int max);
 extern int   tool_is_current_path(char *path);
 extern void  tool_upcopy(char *dst, char *src, int max);

nwtests.c

@@ -62,31 +62,6 @@ static void tests_usage(void)
   fprintf(stdout, "       TESTS NCP23MAP path   (probe NCP23/F4 then F3 layouts; see server debug log)\n");
 }
 
-static int tests_get_current_drive(void)
-{
-  REGS regs;
-
-  regs.h.ah = 0x19;
-  int86(0x21, &regs, &regs);
-  return((int)regs.h.al);
-}
-
-static int tests_current_dhandle(uint8 *dhandle)
-{
-  uint8 connid = 0;
-  uint8 flags = 0;
-  int drive;
-
-  drive = tests_get_current_drive();
-  if (get_drive_info((uint8)drive, &connid, dhandle, &flags))
-    return(-1);
-
-  if (!connid || (flags & 0x80))
-    return(-1);
-
-  return(0);
-}
-
 static uint8 tests_map_ncp_mask(uint16 ncp_rights)
 {
   uint8 mask = 0;
@@ -438,7 +413,7 @@ static int tests_ncp2225miss(char *path)
   if (!path || !*path)
     path = "NO22_25.$$$";
 
-  if (tests_current_dhandle(&dhandle)) {
+  if (tool_current_dhandle_only(&dhandle)) {
     fprintf(stdout, "NCP2225MISS failed: current drive is not a network drive\n");
     return(1);
   }
@@ -467,7 +442,7 @@ static int tests_ncp2225attr(char *path, char *attr_arg)
     return(1);
   }
 
-  if (tests_current_dhandle(&dhandle)) {
+  if (tool_current_dhandle_only(&dhandle)) {
     fprintf(stdout, "NCP2225ATTR failed: current drive is not a network drive\n");
     return(1);
   }
@@ -983,7 +958,7 @@ static int tests_ncp221einfo(char *path)
     return(1);
   }
 
-  if (tests_current_dhandle(&dhandle)) {
+  if (tool_current_dhandle_only(&dhandle)) {
     fprintf(stdout, "NCP221EINFO failed: current drive is not a network drive\n");
     return(1);
   }
@@ -1109,7 +1084,7 @@ static int tests_ncp2225time(char *path, char *date_arg, char *time_arg)
     return(1);
   }
 
-  if (tests_current_dhandle(&dhandle)) {
+  if (tool_current_dhandle_only(&dhandle)) {
     fprintf(stdout, "NCP2225TIME failed: current drive is not a network drive\n");
     return(1);
   }
@@ -1200,7 +1175,7 @@ static int tests_ncp2225adate(char *path, char *date_arg)
     return(1);
   }
 
-  if (tests_current_dhandle(&dhandle)) {
+  if (tool_current_dhandle_only(&dhandle)) {
     fprintf(stdout, "NCP2225ADATE failed: current drive is not a network drive\n");
     return(1);
   }
@@ -1296,7 +1271,7 @@ static int tests_ncp2225maxspace(char *path, char *space_arg)
     return(1);
   }
 
-  if (tests_current_dhandle(&dhandle)) {
+  if (tool_current_dhandle_only(&dhandle)) {
     fprintf(stdout, "NCP2225MAXSPACE failed: current drive is not a network drive\n");
     return(1);
   }
@@ -1354,7 +1329,7 @@ static int tests_ncp2225modid(char *path, char *id_arg)
     return(1);
   }
 
-  if (tests_current_dhandle(&dhandle)) {
+  if (tool_current_dhandle_only(&dhandle)) {
     fprintf(stdout, "NCP2225MODID failed: current drive is not a network drive\n");
     return(1);
   }
@@ -1447,7 +1422,7 @@ static int tests_ncp2225create(char *path, char *date_arg, char *time_arg, char
     return(1);
   }
 
-  if (tests_current_dhandle(&dhandle)) {
+  if (tool_current_dhandle_only(&dhandle)) {
     fprintf(stdout, "NCP2225CREATE failed: current drive is not a network drive\n");
     return(1);
   }
@@ -1557,7 +1532,7 @@ static int tests_ncp2225arch(char *path, char *date_arg, char *time_arg, char *i
     return(1);
   }
 
-  if (tests_current_dhandle(&dhandle)) {
+  if (tool_current_dhandle_only(&dhandle)) {
     fprintf(stdout, "NCP2225ARCH failed: current drive is not a network drive\n");
     return(1);
   }
@@ -1794,7 +1769,7 @@ static int tests_ncp22ren(char *src, char *dst)
     return(1);
   }
 
-  if (tests_current_dhandle(&dhandle)) {
+  if (tool_current_dhandle_only(&dhandle)) {
     fprintf(stdout, "NCP22REN failed: current drive is not a network drive\n");
     return(1);
   }
@@ -1835,7 +1810,7 @@ static int tests_ncp22rendir(char *parent)
   if (!parent || !*parent)
     parent = ".";
 
-  if (tests_current_dhandle(&dhandle)) {
+  if (tool_current_dhandle_only(&dhandle)) {
     fprintf(stdout, "NCP22RENDIR failed: current drive is not a network drive\n");
     return(1);
   }
@@ -1884,7 +1859,7 @@ static int tests_ncp22s4(char *path, char *mask_arg)
   if (!path)
     path = ".";
 
-  if (tests_current_dhandle(&dhandle)) {
+  if (tool_current_dhandle_only(&dhandle)) {
     fprintf(stdout, "NCP22S4 failed: current drive is not a network drive\n");
     return(1);
   }
@@ -1930,7 +1905,7 @@ static int tests_ncp87c32attr(void)
   uint16 handle_hi = 0;
   int rc;
 
-  if (tests_current_dhandle(&dhandle)) {
+  if (tool_current_dhandle_only(&dhandle)) {
     fprintf(stdout, "NCP87C32ATTR failed: current drive is not a network drive\n");
     return(1);
   }
@@ -2193,7 +2168,7 @@ static int tests_ncp23map(char *path)
   if (!path)
     path = ".";
 
-  if (tests_current_dhandle(&dhandle)) {
+  if (tool_current_dhandle_only(&dhandle)) {
     fprintf(stdout, "NCP23MAP failed: current drive is not a network drive\n");
     return(1);
   }
@@ -2520,7 +2495,7 @@ static int tests_effright(char *path)
   if (!path)
     path = ".";
 
-  if (tests_current_dhandle(&dhandle)) {
+  if (tool_current_dhandle_only(&dhandle)) {
     fprintf(stdout, "EFFRIGHT failed: current drive is not a network drive\n");
     return(1);
   }

tools.c

@@ -596,6 +596,13 @@ int tool_current_dhandle(uint8 *connid, uint8 *dhandle)
   return(0);
 }
 
+int tool_current_dhandle_only(uint8 *dhandle)
+{
+  uint8 connid = 0;
+
+  return(tool_current_dhandle(&connid, dhandle));
+}
+
 int tool_current_prefix(char *out, int max)
 {
   uint8 connid = 0;