1 files changed, 75 insertions, 0 deletions
diff --git a/pgm7/child.c b/pgm7/child.c
new file mode 100644
index 0000000..f9263e8
--- /dev/null
+++ b/pgm7/child.c
@@ -0,0 +1,75 @@
+/*
+ * child.c
+ *
+ * Created by Matt Welsh, 1995
+ *
+ * Adapted by Adam Carpenter - acarpent - acarpenter@email.wm.edu
+ * April 2017
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/time.h>
+#include <string.h>
+#include "child.h"
+
+/* Exec the named cmd as a child process, returning
+ * two pipes to communicate with the process, and
+ * the child's process ID */
+int start_child(char *cmd, FILE **readpipe, FILE **writepipe) {
+    int childpid, pipe1[2], pipe2[2];
+
+    if ((pipe(pipe1) < 0) || (pipe(pipe2) < 0) ) {
+       perror("pipe"); exit(-1);
+    }
+
+    if ((childpid = fork()) < 0) {
+       perror("fork"); exit(-1);
+    } else if (childpid > 0) {   /* Parent. */
+       close(pipe1[0]); close(pipe2[1]);
+       /* Write to child on pipe1[1], read from child on pipe2[0]. */
+       *readpipe = fdopen(pipe2[0], "r");
+       *writepipe = fdopen(pipe1[1], "w");
+       setlinebuf(*writepipe);
+       return childpid;
+
+    } else { /* Child. */
+       close(pipe1[1]); close(pipe2[0]);
+       /* Read from parent on pipe1[0], write to parent on pipe2[1]. */
+       dup2(pipe1[0],0); dup2(pipe2[1],1);
+       close(pipe1[0]); close(pipe2[1]);
+
+       if (execlp(cmd, cmd, NULL) < 0)
+          perror("execlp");
+       /* Never returns */
+    }
+    return 0;  // to keep the compiler happy
+}
+
+void i_am_the_master_commander(char *handle, char *opphandle, FILE **writeTo) {
+    /*
+     * Look, don't touch.
+     */
+
+    if (strcmp(handle, "Adam") == 0) {
+        fprintf(*writeTo, ".statusFrame.playerStatus configure -fg blue\n");
+    }
+    else if (strcmp(handle, "Dan") == 0) {
+        fprintf(*writeTo, ".statusFrame.playerStatus configure -fg red\n");
+    }
+    else if (strcmp(handle, "Amy") == 0) {
+        fprintf(*writeTo, ".statusFrame.playerStatus configure -fg \"light sea green\"\n");
+    }
+
+    if (strcmp(opphandle, "Adam") == 0) {
+        fprintf(*writeTo, ".statusFrame.opponentStatus configure -fg blue\n");
+    }
+    else if (strcmp(opphandle, "Dan") == 0) {
+        fprintf(*writeTo, ".statusFrame.opponentStatus configure -fg red\n");
+    }
+    else if (strcmp(opphandle, "Amy") == 0) {
+        fprintf(*writeTo, ".statusFrame.opponentStatus configure -fg \"light sea green\"\n");
+    }
+
+}