Tidied up seekp.c

1 files changed, 50 insertions, 75 deletions

diff --git a/seekp.c b/seekp.c
index 3890d75..c97afcf 100644
--- a/seekp.c
+++ b/seekp.c
@@ -1,110 +1,85 @@
 /*
     Query remote host for TCP/IP socket
 */
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
 #include <netinet/tcp.h>
 #include <netdb.h>
 
-#include <stdio.h>
-#include <errno.h>
+static const char *name;
 
-char	*name;
+static int Connect(const char *n, int p)
+{
+    static int init=0;
+    static struct hostent *remote;
+    static struct sockaddr_in addr;
+    int sock;
 
-int	Connect();
+    if (!init)
+    {
+	if (!(remote=gethostbyname(n)))
+	{
+	    fprintf(stderr,"%s: unknown host %s\n",name,n);
+	    exit(EXIT_FAILURE);
+	}
 
-main(argc,argv)
-int argc;
-char *argv[];
+	memcpy(&addr.sin_addr, remote->h_addr, remote->h_length);
+	init=1;
+    }
 
+    if ((sock=socket(AF_INET,SOCK_STREAM,0))==-1)
+    {
+	perror(name);
+	exit(EXIT_FAILURE);
+    }
+
+    addr.sin_family=AF_INET;
+    addr.sin_port=htons(p);
+
+    if (connect(sock, (void *)&addr, sizeof(addr))!=-1)
+    {
+	printf("%s:%d\n",n,p);
+    }
+
+    close(sock);
+}
+
+int main(int argc, char *argv[])
 {
     int f;
 
     name=argv[0];
 
     if (argc<2)
-	{
+    {
 	fprintf(stderr,"%s: usage %s host\n",name,name);
-	exit(1);
-	}
+	exit(EXIT_FAILURE);
+    }
 
     setbuf(stdout,NULL);
 
-    for(f=0;f<0x10000;f++)
-	{
+    for(f=1;f<0x10000;f++)
+    {
 	if (argc>2)
+	{
 	    printf("Trying %s:%d...\n",argv[1],f);
+	}
 
 	Connect(argv[1],f);
 
 	if ((argc==2)&&(f)&&((f%10000)==0))
+	{
 	    fprintf(stderr,"Tried up to %s:%d\n",argv[1],f);
 	}
+    }
 
-    return(0);
-}
-
-
-char *GetLine()
-
-{
-    static char buff[1024];
-    int l;
-
-    if (feof(stdin))
-	return(NULL);
-
-    printf("> ");
-
-    if (!gets(buff))
-	return(NULL);
-
-    l=strlen(buff);
-
-    if (buff[l-1]=='\n')
-	buff[l-1]=0;
-
-    if (strlen(buff))
-	return(buff);
-    else
-	return(GetLine());
+    return EXIT_SUCCESS;
 }
 
 
-int Connect(n,p)
-char *n;
-int p;
-
-{
-    static int init=0;
-    static struct hostent *remote;
-    static struct sockaddr_in addr;
-    int sock;
-
-    if (!init)
-    	{
-	if (!(remote=gethostbyname(n)))
-	    {
-	    fprintf(stderr,"%s: unknown host %s\n",name,n);
-	    exit(1);
-	    }
-
-	bcopy(remote->h_addr,&addr.sin_addr,remote->h_length);
-	init=1;
-	}
-
-    if ((sock=socket(AF_INET,SOCK_STREAM,0))==-1)
-	{
-	perror(name);
-	exit(1);
-	}
-
-    addr.sin_family=AF_INET;
-    addr.sin_port=htons(p);
-
-    if (connect(sock,&addr,sizeof(addr))!=-1)
-	printf("%s:%d\n",n,p);
-
-    close(sock);
-}