Extended new command -named_pipe_loop by mode parameter

xorriso/aux_objects.h

@@ -107,7 +107,6 @@ int Xorriso_lst_new(struct Xorriso_lsT **lstring, char *text,
                     bit0= Return new object address in *entry
                     bit1= do not copy data (e.g. because *data is invalid)
                     bit2= attach data directly by pointer rather than by copying
-                    bit2= attach data directly by pointer rather than by copying
     @return <=0 error, 1 ok
 */
 int Xorriso_lst_append_binary(struct Xorriso_lsT **entry,

xorriso/base_obj.c

@@ -294,6 +294,7 @@ int Xorriso_new(struct XorrisO ** xorriso,char *progname, int flag)
  m->do_restore_sort_lba= 0;
  m->do_strict_acl= 0;
  m->dialog= 0;
+ m->buffered_dialog= NULL;
  m->bsl_interpretation= 0;
  m->sh_style_result= 0;
  m->search_mode= 0;

xorriso/opts_d_h.c

@@ -2098,9 +2098,13 @@ int Xorriso_option_help(struct XorrisO *xorriso, int flag)
 "          \"compare_sev\"|\"list_sev\" param_text",
 "              Enable, use, or disable message sieve. Or parse lines into",
 "              words. Or compare or list severity names.",
-"  -named_pipes_loop disk_path_stdin disk_path_stdout disk_path_stderr",
+"  -named_pipes_loop mode[:mode]",
+"                    disk_path_stdin disk_path_stdout disk_path_stderr",
 "              Enter an EOF resistant dialog loop at a named pipe as input",
 "              and zero, one or two named pipes as output. \"-\" = no pipe.",
+"              Mode \"cleanup\" removes pipes at loop end. \"keep\" does not.",
+"              Mode \"buffered\" reads all lines from input pipe before it",
+"              opens the output pipes. \"direct\" opens after first input.",
 "  -launch_frontend program [args ...] --",
 "              Start a program, connect its stdin to xorriso stdout and",
 "              stderr, connect its stdout to xorriso stdin.",

xorriso/opts_i_o.c

@@ -1091,17 +1091,43 @@ ex:;
 
 
 /* Option -named_pipe_loop */
-int Xorriso_option_named_pipe_loop(struct XorrisO *xorriso, char *stdin_pipe,
+int Xorriso_option_named_pipe_loop(struct XorrisO *xorriso, char *mode,
-                                   char *stdout_pipe, char *stderr_pipe,
+                                   char *stdin_pipe, char *stdout_pipe,
-                                   int flag)
+                                   char *stderr_pipe, int flag)
 {
- char *pipe_paths[3];
+ char *pipe_paths[3], *cpt, *npt;
- int ret;
+ int ret, hflag= 0, l;
 
+ npt= mode;
+ for(cpt= mode; npt != NULL; cpt= npt + 1) {
+   npt= strchr(cpt, ':');
+   if(npt==NULL)
+     l= strlen(cpt);
+   else
+     l= npt-cpt;
+   if(l==0) {
+     ;
+   } else if(strncmp(cpt, "-", l) == 0) {
+     ;
+   } else if(strncmp(cpt, "cleanup", l) == 0) {
+     hflag|= 1;
+   } else if(strncmp(cpt, "keep", l) == 0) {
+     hflag&= ~1;
+   } else if(strncmp(cpt, "buffered", l) == 0) {
+     hflag|= 2;
+   } else if(strncmp(cpt, "direct", l) == 0) {
+     hflag&= ~2;
+   } else { 
+     sprintf(xorriso->info_text, "-named_pipe_loop: unknown mode in '%s'",
+             mode);
+     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
+     return(0);
+   }
+ }
  pipe_paths[0]= stdin_pipe;
  pipe_paths[1]= stdout_pipe;
  pipe_paths[2]= stderr_pipe;
- ret= Xorriso_named_pipe_loop(xorriso, pipe_paths, 0);
+ ret= Xorriso_named_pipe_loop(xorriso, pipe_paths, hflag);
  return(ret);
 }
 

xorriso/parse_exec.c

@@ -534,11 +534,12 @@ int Xorriso_count_args(struct XorrisO *xorriso, int argc, char **argv,
     ""
  };
  static char arg3_commands[][40]= {
-    "append_partition","named_pipe_loop",
+    "append_partition",
     ""
  };
  static char arg4_commands[][40]= {
-    "cut_out","extract_cut","mount","mount_cmd","paste_in","session_string",
+    "cut_out","extract_cut","mount","mount_cmd","named_pipe_loop",
+    "paste_in","session_string",
     ""
  };
  static char argn_commands[][40]= {
@@ -903,7 +904,7 @@ return:
 {
  int ret, was_dashed, end_ret, num1, num2, cmd_data_size= 2 * SfileadrL;
  int mem_idx, arg_count, i;
- char *cmd, *original_cmd, *cmd_data= NULL, *arg1, *arg2, *arg3;
+ char *cmd, *original_cmd, *cmd_data= NULL, *arg1, *arg2, *arg3, *arg4;
  
  Xorriso_alloc_meM(cmd_data, char, cmd_data_size);
 
@@ -1462,8 +1463,12 @@ next_command:;
    ret= Xorriso_option_mkdiri(xorriso, argc, argv, idx, 0);
 
  } else if(strcmp(cmd,"named_pipe_loop")==0) {
-   (*idx)+= 3;
+   if((*idx) + 3 < argc)
-   ret= Xorriso_option_named_pipe_loop(xorriso, arg1, arg2, arg3, 0);
+     arg4= argv[(*idx) + 3];
+   else
+     arg4= "";
+   (*idx)+= 4;
+   ret= Xorriso_option_named_pipe_loop(xorriso, arg1, arg2, arg3, arg4, 0);
    if(ret == 3)
      goto ex;
 

xorriso/text_io.c

@@ -67,6 +67,7 @@ int Xorriso_dialog_input(struct XorrisO *xorriso, char line[], int linesize,
  bit1= do not read input (but eventually write to history)
  bit2= do not write to history line which begin with "-history:" or "-history "
  bit3= enforce single line dialog mode
+ bit4= do not read from xorriso->buffered_dialog
 */
 {
  char *cpt= NULL, **argv= NULL, *linept, *why_append= "";
@@ -77,6 +78,7 @@ int Xorriso_dialog_input(struct XorrisO *xorriso, char line[], int linesize,
  double tdiff;
  struct timeval tv;
  struct timezone tz;
+ struct Xorriso_lsT *next_lst;
 
  gettimeofday(&tv,&tz);
  tdiff= tv.tv_sec+(1.e-6*(double) tv.tv_usec);
@@ -85,6 +87,16 @@ int Xorriso_dialog_input(struct XorrisO *xorriso, char line[], int linesize,
  linept= line;
 
 get_single:;
+
+ if(xorriso->buffered_dialog != NULL && !(flag & 16)) {
+   /* Consume next buffered line */
+   next_lst= Xorriso_lst_get_next(xorriso->buffered_dialog, 0);
+   strcpy(line, Xorriso_lst_get_text(xorriso->buffered_dialog, 0));
+   Xorriso_lst_destroy(&(xorriso->buffered_dialog), 0);
+   xorriso->buffered_dialog= next_lst;
+   goto process_single;
+ }
+
 #ifdef Xorriso_with_readlinE
 
  if(xorriso->use_stdin || xorriso->dev_fd_1>=0 ||
@@ -121,8 +133,6 @@ get_single:;
      strcpy(linept, cpt);
  }
 
-process_single:;
-
 #else /*  Xorriso_with_readlinE */
 
  if(flag&2)
@@ -138,6 +148,8 @@ process_single:;
 
 #endif /* ! Xorriso_with_readlinE */
 
+process_single:;
+
  if(xorriso->dialog == 2 && !(flag & 8)) {
    append_line= 0;
    if(linept != line && strcmp(linept, "@@@") == 0) {
@@ -3987,7 +3999,14 @@ int Xorriso_open_named_pipe(struct XorrisO *xorriso, char fd_names[3][20],
 
 
 /* Usage example via bash:
+     in=/u/test/xorriso_stdin
+     out=/u/test/xorriso_stdout
+     mknod "$in" p
+     mknod "$out" p
+     xorriso -abort_on NEVER \
+             -named_pipe_loop cleanup:buffered "$in" "$out" - &
 
+     # Send command and receive result
      xorriso_cmd() {
        echo "$@" >/u/test/xorriso_stdin
        cat </u/test/xorriso_stdout
@@ -4002,14 +4021,21 @@ int Xorriso_open_named_pipe(struct XorrisO *xorriso, char fd_names[3][20],
      iso_path=...arbitrary.characters...
      xorriso_cmd map $(xorriso_esc "$disk_path") $(xorriso_esc "$iso_path")
 */
+/* @param flag bit0= unlink pipes when the loop ends
+               bit1= read all lines from pipe until EOF before executing them
+*/ 
 int Xorriso_named_pipe_loop(struct XorrisO *xorriso,
                             char *pipe_paths[3], int flag)
 {
  char *line= NULL;
- int i, ret, mem_fds[3], pipe_fds[3], first_line, hret;
+ int i, ret, mem_fds[3], pipe_fds[3], first_line, hret, pipes_are_valid= 0;
+ int lst_ret, filling_buffer= 0;
+ off_t mem_used= 0, mem_needed;
  struct stat stbuf;
+ struct Xorriso_lsT *prev_lst= NULL;
  static char fd_names[3][20] = {
                        "standard input", "standard output", "standard error" };
+ char mem_text[80], limit_text[80];
 
  if(xorriso->tolerate_stdin_eof) {
    sprintf(xorriso->info_text,
@@ -4048,6 +4074,7 @@ int Xorriso_named_pipe_loop(struct XorrisO *xorriso,
      ret= 0; goto ex;
    }
  }
+ pipes_are_valid= 1;
 
  while(1) {
    /* Open input pipe */
@@ -4059,10 +4086,52 @@ int Xorriso_named_pipe_loop(struct XorrisO *xorriso,
    /* As long as the input connection exists */
    xorriso->tolerate_stdin_eof= 1;
    first_line= 1;
+   if(flag & 2) {
+     filling_buffer= 8 | 16; /* single line, no reading from buffered_dialog */
+     prev_lst= NULL;
+     mem_used= 0;
+   }
    while(1) {
-
      /* Fetch input line */
-     ret= Xorriso_dialog_input(xorriso, line, SfileadrL, 1);
+     if((flag & 2) && xorriso->buffered_dialog == NULL && !filling_buffer) {
+       ret= -2; /* EOF */
+     } else {
+       ret= Xorriso_dialog_input(xorriso, line, SfileadrL, 1 | filling_buffer);
+     }
+     if((flag & 2) && filling_buffer) {
+       /* Fetch and buffer lines before opening output pipes */
+
+       if(ret > 0) {
+
+         /* Check for excessive memory consumption */;
+         mem_needed= strlen(line) + 8 + sizeof(struct Xorriso_lsT);
+         if(mem_used + mem_needed > xorriso->temp_mem_limit) {
+           Sfile_scale((double) (mem_used + mem_needed), mem_text, 5, 1e4, 0);
+           Sfile_scale((double) xorriso->temp_mem_limit,
+                       limit_text, 5, 1e4, 0);
+           sprintf(xorriso->info_text,
+                   "-named_pipe_loop: List of buffered input lines exceeds -temp_mem_limit (%s > %s)",
+                   mem_text, limit_text);
+           Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0,
+                               "FAILURE", 0);
+           ret= -1; goto ex;
+         }
+         mem_used+= mem_needed;
+
+         lst_ret= Xorriso_lst_new(&prev_lst, line, prev_lst, 0);
+         if(lst_ret <= 0) {
+           Xorriso_msgs_submit(xorriso, 0,
+             "-named_pipe_loop: Cannot buffer all input lines", 0, "FATAL", 0);
+           ret= -1;
+         } else {
+           if(xorriso->buffered_dialog == NULL)
+             xorriso->buffered_dialog= prev_lst;
+   continue;
+         }
+       }
+       filling_buffer= 0; /* start consuming buffer */
+   continue;
+     }
 
      /* Open output pipes late to allow the sender to open them after
         the first (and usually only) input line was transmitted:
@@ -4114,10 +4183,23 @@ int Xorriso_named_pipe_loop(struct XorrisO *xorriso,
  ret= 1;
 ex:;
  xorriso->tolerate_stdin_eof= 0;
+ if(flag & 2)
+   Xorriso_lst_destroy_all(&(xorriso->buffered_dialog), 0);
  /* Close any open pipes. Restore stdin, stdout and stderr. */
  for(i= 0; i < 3; i++) {
-   if(pipe_fds[i] != -1)
+   if(pipe_fds[i] != -1) {
+     if((flag & 1) && pipes_are_valid) {
+       if(stat(pipe_paths[i], &stbuf) != -1) {
+         if(S_ISFIFO(stbuf.st_mode)) {
+           sprintf(xorriso->info_text, "Removing named pipe ");
+           Text_shellsafe(pipe_paths[i], xorriso->info_text, 1);
+           Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
+           unlink(pipe_paths[i]);
+         }
+       }
+     }
      close(pipe_fds[i]);
+   }
    if(mem_fds[i] != -1) {
      close(i);
      dup2(mem_fds[i], i);

xorriso/xorriso.1

@@ -9,7 +9,7 @@
 .\" First parameter, NAME, should be all caps
 .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
 .\" other parameters are allowed: see man(7), man(1)
-.TH XORRISO 1 "Version 1.3.1, Jul 02, 2013"
+.TH XORRISO 1 "Version 1.3.1, Jul 03, 2013"
 .\" Please adjust this date whenever revising the manpage.
 .\"
 .\" Some roff macros, for reference:
@@ -4700,19 +4700,30 @@ Above example "SORRY,UPDATE" will yield 1.
 Print to the result channel a blank separated list of all severity names.
 Sorted from low to high severity.
 .TP
-\fB\-named_pipe_loop\fR disk_path_stdin disk_path_stdout disk_path_stderr
+\fB\-named_pipe_loop\fR mode[:mode] disk_path_stdin disk_path_stdout disk_path_stderr
 Temporarily replace standard input, standard output and standard error by
 named pipes. Enter dialog mode without readline.
-The three parameters must either be disk paths to existing named pipes,
+.br
+Defined modes are:
+.br
+"cleanup" removes the submitted pipe files when the loop ends.
+.br
+"keep" does not delete them. This is the default.
+.br
+"buffered" reads all lines from the input pipe until EOF before it opens
+the output pipes and processes the input lines.
+.br
+"direct" opens the output pipes after the first input line was read.
+Each line is executed directly after it is read. This is the default.
+.br
+The other three parameters must either be disk paths to existing named pipes,
 or be "\-" to leave the according standard i/o channel unreplaced.
 .br
 xorriso will open the stdin pipe, read and execute dialog lines from it
-until the sender closes the pipe. Then xorriso will close its side of
+until the sender closes the pipe. The output pipes get opened depending on
-the pipes and enter a new cycle of opening, reading and executing.
+mode "buffered" resp. "direct". After all lines are executed, xorriso will
-.br
+close its side of the pipes and enter a new cycle of opening, reading and
-The output pipes will get opened after the first input line was
+executing.
-read from a freshly opened pipe. This allows the sender to first send
-a very long line and to only then open an output pipe for reading the reply.
 .br
 If an input line consists only of the word "end_named_pipe_loop"
 then \-named_pipe_loop will end and further xorriso commands may be

xorriso/xorriso.h

@@ -1665,9 +1665,9 @@ int Xorriso_option_mvi(struct XorrisO *xorriso, int argc, char **argv,
 
 /* Option -named_pipe_loop */
 /* @since 1.3.2 */
-int Xorriso_option_named_pipe_loop(struct XorrisO *xorriso, char *stdin_pipe,
+int Xorriso_option_named_pipe_loop(struct XorrisO *xorriso, char *mode,
-                                   char *stdout_pipe, char *stderr_pipe,
+                                   char *stdin_pipe, char *stdout_pipe,
-                                   int flag);
+                                   char *stderr_pipe, int flag);
 
 /* Command -no_rc */
 int Xorriso_option_no_rc(struct XorrisO *xorriso, int flag);

xorriso/xorriso.info

@@ -4110,19 +4110,25 @@ File: xorriso.info,  Node: Frontend,  Next: ExDevices,  Prev: Scripting,  Up: Co
      Print to the result channel a blank separated list of all severity
      names.  Sorted from low to high severity.
 
--named_pipe_loop disk_path_stdin disk_path_stdout disk_path_stderr
+-named_pipe_loop mode[:mode] disk_path_stdin disk_path_stdout disk_path_stderr
      Temporarily replace standard input, standard output and standard
-     error by named pipes. Enter dialog mode without readline.  The
+     error by named pipes. Enter dialog mode without readline.
-     three parameters must either be disk paths to existing named pipes,
+     Defined modes are:
-     or be "-" to leave the according standard i/o channel unreplaced.
+     "cleanup" removes the submitted pipe files when the loop ends.
+     "keep" does not delete them. This is the default.
+     "buffered" reads all lines from the input pipe until EOF before it
+     opens the output pipes and processes the input lines.
+     "direct" opens the output pipes after the first input line was
+     read.  Each line is executed directly after it is read. This is
+     the default.
+     The other three parameters must either be disk paths to existing
+     named pipes, or be "-" to leave the according standard i/o channel
+     unreplaced.
      xorriso will open the stdin pipe, read and execute dialog lines
-     from it until the sender closes the pipe. Then xorriso will close
+     from it until the sender closes the pipe. The output pipes get
-     its side of the pipes and enter a new cycle of opening, reading
+     opened depending on mode "buffered" resp. "direct". After all
-     and executing.
+     lines are executed, xorriso will close its side of the pipes and
-     The output pipes will get opened after the first input line was
+     enter a new cycle of opening, reading and executing.
-     read from a freshly opened pipe. This allows the sender to first
-     send a very long line and to only then open an output pipe for
-     reading the reply.
      If an input line consists only of the word "end_named_pipe_loop"
      then -named_pipe_loop will end and further xorriso commands may be
      executed from other sources.
@@ -4872,7 +4878,7 @@ File: xorriso.info,  Node: CommandIdx,  Next: ConceptIdx,  Prev: Legal,  Up: Top
 * -jigdo   clears JTE or or adds parameter to JTE: Jigdo.     (line  33)
 * -joliet   enables production of Joliet tree: SetWrite.      (line  10)
 * -launch_frontend   starts frontend program at pipes: Frontend.
-                                                              (line 140)
+                                                              (line 146)
 * -list_arg_sorting   prints sorting order of -x: ArgSort.    (line  27)
 * -list_delimiter   replaces '--':       Scripting.           (line  60)
 * -list_extras   lists compile time extra features: Scripting.
@@ -4927,8 +4933,8 @@ File: xorriso.info,  Node: CommandIdx,  Next: ConceptIdx,  Prev: Legal,  Up: Top
 * -print_info   prints message text line: Scripting.          (line 113)
 * -print_mark   prints synchronizing text line: Scripting.    (line 116)
 * -print_size   predicts image size:     Inquiry.             (line  91)
-* -prog   sets program name:             Frontend.            (line 175)
+* -prog   sets program name:             Frontend.            (line 181)
-* -prog_help   prints help text:         Frontend.            (line 178)
+* -prog_help   prints help text:         Frontend.            (line 184)
 * -prompt   prompts for enter key:       Scripting.           (line 121)
 * -publisher   sets publisher id:        SetWrite.            (line 186)
 * -pvd_info   shows image id strings:    Inquiry.             (line 115)
@@ -5089,7 +5095,7 @@ File: xorriso.info,  Node: ConceptIdx,  Prev: CommandIdx,  Up: Top
 * Filter, unregister, -unregister_filter: Filter.             (line  48)
 * Filter, zisofs parameters, -zisofs:    SetWrite.            (line 272)
 * Frontend program, start at pipes, -launch_frontend: Frontend.
-                                                              (line 140)
+                                                              (line 146)
 * GPT, _definition:                      Extras.              (line  38)
 * Group, global in ISO image, -gid:      SetWrite.            (line 268)
 * Group, in ISO image, -chgrp:           Manip.               (line  57)
@@ -5203,7 +5209,7 @@ File: xorriso.info,  Node: ConceptIdx,  Prev: CommandIdx,  Up: Top
 * Program, end without writing, -rollback_end: Scripting.     (line 170)
 * Program, list extra features, -list_extras: Scripting.      (line  26)
 * Program, print help text, -help:       Scripting.           (line  20)
-* Program, print help text, -prog_help:  Frontend.            (line 178)
+* Program, print help text, -prog_help:  Frontend.            (line 184)
 * Program, print message text line, -print_info: Scripting.   (line 113)
 * Program, print result text line, -print: Scripting.         (line 110)
 * Program, print synchronizing text line, -print_mark: Scripting.
@@ -5211,7 +5217,7 @@ File: xorriso.info,  Node: ConceptIdx,  Prev: CommandIdx,  Up: Top
 * Program, print version, -version:      Scripting.           (line  23)
 * Program, prompt for enter key, -prompt: Scripting.          (line 121)
 * Program, replace --, -list_delimiter:  Scripting.           (line  60)
-* Program, set name, -prog:              Frontend.            (line 175)
+* Program, set name, -prog:              Frontend.            (line 181)
 * Program, show current settings, -status: Scripting.         (line  47)
 * Program, status history, -status_history_max: Scripting.    (line  56)
 * Program, wait a time span, -sleep:     Scripting.           (line 125)
@@ -5320,28 +5326,28 @@ Node: Restore178554
 Node: Emulation185641
 Node: Scripting195943
 Node: Frontend203714
-Node: Examples212994
+Node: Examples213321
-Node: ExDevices214172
+Node: ExDevices214499
-Node: ExCreate214831
+Node: ExCreate215158
-Node: ExDialog216116
+Node: ExDialog216443
-Node: ExGrowing217381
+Node: ExGrowing217708
-Node: ExModifying218186
+Node: ExModifying218513
-Node: ExBootable218690
+Node: ExBootable219017
-Node: ExCharset219242
+Node: ExCharset219569
-Node: ExPseudo220063
+Node: ExPseudo220390
-Node: ExCdrecord220961
+Node: ExCdrecord221288
-Node: ExMkisofs221278
+Node: ExMkisofs221605
-Node: ExGrowisofs222618
+Node: ExGrowisofs222945
-Node: ExException223753
+Node: ExException224080
-Node: ExTime224207
+Node: ExTime224534
-Node: ExIncBackup224666
+Node: ExIncBackup224993
-Node: ExRestore228646
+Node: ExRestore228973
-Node: ExRecovery229579
+Node: ExRecovery229906
-Node: Files230149
+Node: Files230476
-Node: Seealso231448
+Node: Seealso231775
-Node: Bugreport232171
+Node: Bugreport232498
-Node: Legal232752
+Node: Legal233079
-Node: CommandIdx233763
+Node: CommandIdx234090
-Node: ConceptIdx250279
+Node: ConceptIdx250606
 
 End Tag Table

xorriso/xorriso.texi

@@ -50,7 +50,7 @@
 @c man .\" First parameter, NAME, should be all caps
 @c man .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
 @c man .\" other parameters are allowed: see man(7), man(1)
-@c man .TH XORRISO 1 "Version 1.3.1, Jul 02, 2013"
+@c man .TH XORRISO 1 "Version 1.3.1, Jul 03, 2013"
 @c man .\" Please adjust this date whenever revising the manpage.
 @c man .\"
 @c man .\" Some roff macros, for reference:
@@ -5491,21 +5491,32 @@ Above example "SORRY,UPDATE" will yield 1.
 Print to the result channel a blank separated list of all severity names.
 Sorted from low to high severity.
 @c man .TP
-@item -named_pipe_loop disk_path_stdin disk_path_stdout disk_path_stderr
+@item -named_pipe_loop mode[:mode] disk_path_stdin disk_path_stdout disk_path_stderr
 @kindex -named_pipe_loop   enters EOF resistant dialog
 @cindex Dialog, EOF resistant, -named_pipe_loop
 Temporarily replace standard input, standard output and standard error by
 named pipes. Enter dialog mode without readline.
-The three parameters must either be disk paths to existing named pipes,
+@*
+Defined modes are:
+@*
+"cleanup" removes the submitted pipe files when the loop ends.
+@*
+"keep" does not delete them. This is the default.
+@*
+"buffered" reads all lines from the input pipe until EOF before it opens
+the output pipes and processes the input lines.
+@*
+"direct" opens the output pipes after the first input line was read.
+Each line is executed directly after it is read. This is the default.
+@*
+The other three parameters must either be disk paths to existing named pipes,
 or be "-" to leave the according standard i/o channel unreplaced.
 @*
 xorriso will open the stdin pipe, read and execute dialog lines from it
-until the sender closes the pipe. Then xorriso will close its side of
+until the sender closes the pipe. The output pipes get opened depending on
-the pipes and enter a new cycle of opening, reading and executing.
+mode "buffered" resp. "direct". After all lines are executed, xorriso will
-@*
+close its side of the pipes and enter a new cycle of opening, reading and
-The output pipes will get opened after the first input line was
+executing.
-read from a freshly opened pipe. This allows the sender to first send
-a very long line and to only then open an output pipe for reading the reply.
 @*
 If an input line consists only of the word "end_named_pipe_loop"
 then -named_pipe_loop will end and further xorriso commands may be

xorriso/xorriso_private.h

@@ -520,6 +520,8 @@ struct XorrisO { /* the global context of xorriso */
 
  int dialog;  /* 0=off , 1=single-line , 2=multi-line */
 
+ struct Xorriso_lsT *buffered_dialog; /* If not NULL : read by dialog */
+
  int bsl_interpretation;
                      /* whether to run input through Sfile_bsl_interpreter():
                         bit0-1= dialog and quoted file reading
@@ -533,6 +535,14 @@ struct XorrisO { /* the global context of xorriso */
                         bit6= perform backslash encoding with info texts
                      */
 
+ int sh_style_result; /* Whether not to wrap into quotation marks the file
+                         addresses reported by:
+                           pwd pwdx ls lsd lsl lsdl lsx lsdx lslx lsdlx
+                           du dus dux dusx findx find
+                         and to make du* numbers left adjusted,
+                         and not to append "/" to pwd* 
+                       */
+
  /* Pattern matching facility. It still carries legacy from scdbackup/askme.c
     but is fully functional for xorriso.
  */

xorriso/xorriso_timestamp.h

@@ -1 +1 @@
-#define Xorriso_timestamP "2013.07.02.123642"
+#define Xorriso_timestamP "2013.07.04.094640"