X-Git-Url: https://gapil.gnulinux.it/gitweb/?p=gapil.git;a=blobdiff_plain;f=sources%2FFortuneServer.c;fp=sources%2FFortuneServer.c;h=c00b3fedf5a80ca33d6de56dbb3652bd97b8132c;hp=0000000000000000000000000000000000000000;hb=198add70c8604fe7ffb05689aa693d782102917e;hpb=5099573b0239402d8860e2c0af07c8eb3378b865

diff --git a/sources/FortuneServer.c b/sources/FortuneServer.c
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+/* FortuneServer.c
+ * 
+ * Copyright (C) 2002 Simone Piccardi
+ * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+/****************************************************************
+ *
+ * Program fortuned 
+ * Fortune server
+ *
+ * Author: Simone Piccardi
+ * Aug. 2002
+ *
+ * Usage: fortuned -h give all info
+ *
+ * $Id: FortuneServer.c,v 1.1 2002/08/18 10:34:10 piccardi Exp $
+ *
+ ****************************************************************/
+/* 
+ * Include needed headers
+ */
+#include <sys/types.h>   /* predefined types */
+#include <sys/stat.h>    /*  */
+#include <unistd.h>      /* include unix standard library */
+#include <stdio.h>       /* include standard I/O library */
+#include <stdlib.h>	 /* standard library */
+#include <string.h>	 /* ANSI C standard string */
+#include <errno.h>	 /* errorstring */
+#include <fcntl.h>	 /*  */
+
+#include "macros.h"
+
+/* Subroutines declaration */
+void usage(void);
+int FortuneParse(char *file, char **fortune, int n);
+
+int main(int argc, char *argv[])
+{
+/* Variables definition */
+    int n = 0;
+    FILE *fortunefile;
+    char *fortunefilename = "/usr/share/misc/fortune/fortune.it";
+    char *fifoname = "/tmp/fortune.fifo";
+    char **fortune;
+    char line[80];
+    int fifo_server, fifo_client;
+    int nread;
+    /*
+     * Input section: decode parameters passed in the calling 
+     * Use getopt function
+     */
+    int i;
+    opterr = 0;	 /* don't want writing to stderr */
+    while ( (i = getopt(argc, argv, "hn:f:")) != -1) {
+	switch (i) {
+	/* 
+	 * Handling options 
+	 */ 
+	case 'h':  
+	    printf("Wrong -h option use\n");
+	    usage();
+	    return(0);
+	    break;
+	case 'f':
+	    fortunefilename = optarg;
+	    break;
+	case 'n':
+	    n = strtol(optarg, NULL, 10);
+	    fortune = (char **) calloc(sizeof(*fortune), n);
+	    break;
+	case '?':   /* unrecognized options */
+	    printf("Unrecognized options -%c\n",optopt);
+	    usage();
+	default:    /* should not reached */
+	    usage();
+	}
+    }
+    /* ***********************************************************
+     * 
+     *		 Options processing completed
+     *
+     *		      Main code beginning
+     * 
+     * ***********************************************************/
+    if (n==0) {                                   /* if no pool depth exit */
+	usage();                                       /* print usage info */
+    }
+    i = FortuneParse(fortunefilename, fortune, n);
+    for (n=0; n<i; n++) debug("%s", fortune[n]);
+    /* 
+     * Comunication section 
+     */
+    if (mkfifo(fifoname, 0622)) {
+	if (errno!=EEXIST) {
+	    perror("Cannot create well known fifo");
+	    exit(-1);
+	}
+    }
+    while (1) {
+	fifo_server = open(fifoname, O_RDONLY);
+	if (fifo_server < 0) {
+	    perror("Cannot open well known fifo");
+	    exit(-1);
+	}
+	nread = read(fifo_server, line, 79);
+	line[nread] = 0;
+	debug("%s %d\n", line,nread);
+	n = random() % i;
+	debug("fortune[%d]=%s\n", n, fortune[n]);
+	fifo_client = open(line, O_WRONLY);
+	nread = write(fifo_client, fortune[n], strlen(fortune[n])+1);
+	close(fifo_client);
+	close(fifo_server);
+    }
+}
+/*
+ * routine to print usage info and exit
+ */
+void usage(void) {
+    printf("Elementary fortune server\n");
+    printf("Usage:\n");
+    printf("  fortuned [-h] [-f] -n XXX \n");
+    printf("  -h   print this help\n");
+    printf("  -f filename   set file for fortunes\n");
+    printf("  -n XXX        set pool depth\n");
+    exit(1);
+}