From 7e0f021a9aec35fd8e6725e87e3313b101d26f5e Mon Sep 17 00:00:00 2001
From: Tobias Klauser <tklauser@distanz.ch>
Date: Sun, 27 Jan 2008 11:37:44 +0100
Subject: Initial import (2.0.2-6)

---
 reference/C/CONTRIB/OR_USING_C/11.6.c | 53 +++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 reference/C/CONTRIB/OR_USING_C/11.6.c

(limited to 'reference/C/CONTRIB/OR_USING_C/11.6.c')

diff --git a/reference/C/CONTRIB/OR_USING_C/11.6.c b/reference/C/CONTRIB/OR_USING_C/11.6.c
new file mode 100644
index 0000000..7db84df
--- /dev/null
+++ b/reference/C/CONTRIB/OR_USING_C/11.6.c
@@ -0,0 +1,53 @@
+#include <sys/types.h>
+#include <sys/ipc.h>
+#include <sys/shm.h>
+#include <stdio.h>
+
+#define SHMSZ     27
+
+main()
+{
+    int shmid;
+    key_t key;
+    char *shmat();
+    char *shm, *s;
+
+    /*
+     * We need to get the segment named
+     * "5678", created by the server.
+     */
+    key = 5678;
+
+    /*
+     * Locate the segment.
+     */
+    if ((shmid = shmget(key, SHMSZ, 0666)) < 0) {
+        perror("shmget");
+        exit(1);
+    }
+
+    /*
+     * Now we attach the segment to our data space.
+     */
+    if ((shm = shmat(shmid, NULL, 0)) == (char *) -1) {
+        perror("shmat");
+        exit(1);
+    }
+
+    /*
+     * Now read what the server put in the memory.
+     */
+    for (s = shm; *s != NULL; s++)
+        putchar(*s);
+    putchar('\n');
+
+    /*
+     * Finally, change the first character of the 
+     * segment to '*', indicating we have read 
+     * the segment.
+     */
+    *shm = '*';
+
+    exit(0);
+}
+
-- 
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