Finita la conversione dei listati in file separati. Passato anche alla nuova

[gapil.git] / listati / FortuneServer.c

diff --git a/listati/FortuneServer.c b/listati/FortuneServer.c
new file mode 100644 (file)
index 0000000..7c45d23
--- /dev/null
+++ b/listati/FortuneServer.c
@@ -0,0 +1,52 @@
+char *fifoname = "/tmp/fortune.fifo";
+int main(int argc, char *argv[])
+{
+/* Variables definition */
+    int i, n = 0;
+    char *fortunefilename = "/usr/share/games/fortunes/linux";
+    char **fortune;
+    char line[80];
+    int fifo_server, fifo_client;
+    int nread;
+    ...
+    if (n==0) usage();          /* if no pool depth exit printing usage info */
+    Signal(SIGTERM, HandSIGTERM);            /* set handlers for termination */
+    Signal(SIGINT, HandSIGTERM);
+    Signal(SIGQUIT, HandSIGTERM);
+    i = FortuneParse(fortunefilename, fortune, n);          /* parse phrases */
+    if (mkfifo(fifoname, 0622)) {  /* create well known fifo if does't exist */
+        if (errno!=EEXIST) {
+            perror("Cannot create well known fifo");
+            exit(1);
+        }
+    }
+    daemon(0, 0);
+    /* open fifo two times to avoid EOF */
+    fifo_server = open(fifoname, O_RDONLY);
+    if (fifo_server < 0) {
+        perror("Cannot open read only well known fifo");
+        exit(1);
+    }
+    if (open(fifoname, O_WRONLY) < 0) {                        
+        perror("Cannot open write only well known fifo");
+        exit(1);
+    }
+    /* Main body: loop over requests */
+    while (1) {
+        nread = read(fifo_server, line, 79);                 /* read request */
+        if (nread < 0) {
+            perror("Read Error");
+            exit(1);
+        }
+        line[nread] = 0;                       /* terminate fifo name string */
+        n = random() % i;                             /* select random value */
+        fifo_client = open(line, O_WRONLY);              /* open client fifo */
+        if (fifo_client < 0) {
+            perror("Cannot open");
+            exit(1);
+        }
+        nread = write(fifo_client,                           /* write phrase */
+                      fortune[n], strlen(fortune[n])+1);
+        close(fifo_client);                             /* close client fifo */
+    }
+}