1 files changed, 165 insertions, 0 deletions
diff --git a/src/util.c b/src/util.c
new file mode 100644
index 0000000..9ea5749
--- /dev/null
+++ b/src/util.c
@@ -0,0 +1,165 @@
+/*
+
+    atarisio - A UNIX backend for an Atari SIO2PC lead.
+
+    Copyright (C) 2004  Ian Cowburn (ianc@noddybox.demon.co.uk)
+
+    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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+    -------------------------------------------------------------------------
+
+    Global utilities and types
+
+*/
+static const char ident[]="$Id$";
+
+#include <stdio.h>
+#include <string.h>
+#include <strings.h>
+#include <ctype.h>
+#include "util.h"
+
+static const char ident_h[]=ATARISIO_UTIL_H;
+
+#define HEX_DUMP_LINE	16
+
+
+/* ---------------------------------------- INTERFACES
+*/
+void *Malloc(size_t size)
+{
+    void *new=malloc(size);
+
+    if (!new)
+    {
+    	fprintf(stderr,"malloc failed for %lu bytes\n",(unsigned long)size);
+	exit(EXIT_FAILURE);
+    }
+
+    return new;
+}
+
+
+void *Realloc(void *p, size_t size)
+{
+    void *new=realloc(p,size);
+
+    if (!new)
+    {
+    	fprintf(stderr,"realloc failed for %lu bytes\n",(unsigned long)size);
+	exit(EXIT_FAILURE);
+    }
+
+    return new;
+}
+
+
+char *StrCopy(const char *source)
+{
+    return strcpy(Malloc(strlen(source)+1),source);
+}
+
+
+int YesNo(const char *str, int *flag)
+{
+    if (strcasecmp(str,"on")==0 || 
+	strcasecmp(str,"yes")==0 || 
+	strcasecmp(str,"1")==0)
+    {
+	*flag=1;
+    	return 1;
+    }
+
+    if (strcasecmp(str,"off")==0 || 
+	strcasecmp(str,"no")==0 || 
+	strcasecmp(str,"0")==0)
+    {
+	*flag=0;
+    	return 1;
+    }
+
+    return 0;
+}
+
+
+void HexDump(const uchar *p, size_t len)
+{
+    char asc[HEX_DUMP_LINE+1];
+    size_t f;
+
+    f=0;
+
+    while(f<len)
+    {
+	if ((f%HEX_DUMP_LINE)==0)
+	    printf("%4.4x: ",f);
+
+	printf(" %2.2x",p[f]);
+
+	if (isprint(p[f]))
+	    asc[f%HEX_DUMP_LINE]=p[f];
+	else
+	    asc[f%HEX_DUMP_LINE]='.';
+
+	asc[(f%HEX_DUMP_LINE)+1]=0;
+
+	f++;
+
+	if ((f%HEX_DUMP_LINE)==0)
+	    printf("  %s\n",asc);
+    }
+
+    if (f%HEX_DUMP_LINE)
+    {
+	while(f%HEX_DUMP_LINE)
+	{
+	    printf("   ");
+	    f++;
+	}
+
+	printf("  %s\n",asc);
+    }
+}
+
+
+int GetInt(const char *p)
+{
+    long l;
+
+    l=strtol(p,NULL,0);
+
+    return l;
+}
+
+
+uchar Checksum(const uchar *p, size_t len)
+{
+    int sum;
+    size_t f;
+
+    sum=0;
+
+    for(f=0;f<len;f++)
+    {
+	sum+=p[f];
+	sum=(sum&0xff)+(sum>>8);
+    }
+
+    return (uchar)(sum&0xff);
+}
+
+
+
+/* END OF FILE */