From 53ad34084c4f4d6378f71ac04c2aa0c0e6b40e18 Mon Sep 17 00:00:00 2001
From: jsancho <devnull@localhost>
Date: Fri, 22 Apr 2011 08:04:07 +0000
Subject: [PATCH]

---
 gacela.c | 60 ++++++++++++++++++++++++++++++++++++++------------------
 1 file changed, 41 insertions(+), 19 deletions(-)

diff --git a/gacela.c b/gacela.c
index 343f1ba..dee7659 100644
--- a/gacela.c
+++ b/gacela.c
@@ -1,33 +1,55 @@
 #include <stdio.h>
 #include <readline/readline.h>
+#include <sys/types.h>
+#include <unistd.h>
 
 /* Read-Send-Print-Loop */
-void rspl ()
+void rspl(int pin, int pout)
 {
   static char *line = (char *)NULL;
   int exit = 0;
 
-  while (!exit)
-    {
-      if (line)
-	{
-	  free (line);
-	  line = (char *)NULL;
-	}
-      
-      line = readline ("gacela>");
-
-      if (line && *line)
-	{
-	  add_history (line);
-	  if (strcmp (line, "(quit)") == 0)
-	    exit = 1;
-	}
+  while (!exit) {
+    if (line) {
+      free(line);
+      line = (char *)NULL;
+    }
+    
+    line = readline("gacela>");
+    
+    if (line && *line) {
+      add_history(line);
+      if (strcmp(line, "(quit)") == 0)
+	exit = 1;
+      else {
+	write(pout, line, strlen(line));
+	write(pout, "\n", 1);
+      }
     }
+  }
 }
 
 int main (int argc, char *argv[])
 {
-  rspl ();
-  return 0;
+  pid_t cpid;
+  int pfd[2];
+
+  pipe(pfd);
+  cpid = fork();
+  if (cpid != 0) {
+    rspl(pfd[0], pfd[1]);
+    return 0;
+  }
+  else {
+    char buf;
+
+    while (1) {
+      while (read(pfd[0], &buf, 1) > 0) {
+	if (buf == '\n')
+	  write(STDOUT_FILENO, "-\n", 2);
+	else
+	  write(STDOUT_FILENO, &buf, 1);
+      }
+    }
+  }
 }
-- 
2.39.2