--- a/options.c
+++ b/options.c
@@ -34,6 +34,8 @@
/* System libraries. */
+#include <unistd.h>
+#include <stdlib.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/socket.h>
--- a/safe_finger.c
+++ b/safe_finger.c
@@ -20,6 +20,11 @@
/* System libraries */
+#include <unistd.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <sys/wait.h>
+#include <grp.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <signal.h>
@@ -27,7 +31,7 @@
#include <ctype.h>
#include <pwd.h>
-extern void exit();
+int pipe_stdin(char **argv);
/* Local stuff */
--- a/scaffold.c
+++ b/scaffold.c
@@ -10,6 +10,7 @@
/* System libraries. */
+#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/socket.h>
@@ -27,7 +27,4 @@
#endif
-#ifndef INET6
-extern char *malloc();
-#endif
/* Application-specific. */
--- a/shell_cmd.c
+++ b/shell_cmd.c
@@ -14,6 +14,10 @@
/* System libraries. */
+#include <unistd.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <sys/wait.h>
#include <sys/types.h>
#include <sys/param.h>
#include <signal.h>
@@ -25,8 +25,6 @@
#include <syslog.h>
#include <string.h>
-extern void exit();
-
/* Local stuff. */
#include "tcpd.h"
--- a/tcpdchk.c
+++ b/tcpdchk.c
@@ -20,6 +20,8 @@
/* System libraries. */
+#include <unistd.h>
+#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#ifdef INET6
@@ -35,10 +36,7 @@
#include <netdb.h>
#include <string.h>
-extern int errno;
-extern void exit();
-extern int optind;
-extern char *optarg;
+int cidr_mask_addr(char *str);
#ifndef INADDR_NONE
#define INADDR_NONE (-1) /* XXX should be 0xffffffff */
--- a/clean_exit.c
+++ b/clean_exit.c
@@ -13,8 +13,8 @@
#endif
#include <stdio.h>
-
-extern void exit();
+#include <unistd.h>
+#include <stdlib.h>
#include "tcpd.h"
--- a/hosts_access.c
+++ b/hosts_access.c
@@ -23,6 +23,7 @@
/* System libraries. */
+#include <stdlib.h>
#include <sys/types.h>
#ifdef INT32_T
typedef uint32_t u_int32_t;
@@ -43,8 +44,8 @@
#include <netdb.h>
#endif
-extern char *fgets();
-extern int errno;
+static int match_pattern_ylo(const char *s, const char *pattern);
+int cidr_mask_addr(char *str);
#ifndef INADDR_NONE
#define INADDR_NONE (-1) /* XXX should be 0xffffffff */
--- a/inetcf.c
+++ b/inetcf.c
@@ -9,15 +9,14 @@
static char sccsid[] = "@(#) inetcf.c 1.7 97/02/12 02:13:23";
#endif
+#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
-extern int errno;
-extern void exit();
-
+#include "scaffold.h"
#include "tcpd.h"
#include "inetcf.h"
--- a/percent_x.c
+++ b/percent_x.c
@@ -16,12 +16,12 @@
/* System libraries. */
+#include <unistd.h>
+#include <stdlib.h>
#include <stdio.h>
#include <syslog.h>
#include <string.h>
-extern void exit();
-
/* Local stuff. */
#include "tcpd.h"
--- a/rfc931.c
+++ b/rfc931.c
@@ -15,6 +15,7 @@
/* System libraries. */
+#include <unistd.h>
#include <stdio.h>
#include <syslog.h>
#include <sys/types.h>
--- a/tcpd.c
+++ b/tcpd.c
@@ -16,6 +16,7 @@
/* System libraries. */
+#include <unistd.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/stat.h>
@@ -39,6 +39,8 @@
#include "patchlevel.h"
#include "tcpd.h"
+void fix_options(struct request_info *request);
+
int allow_severity = SEVERITY; /* run-time adjustable */
int deny_severity = LOG_WARNING; /* ditto */
--- a/tcpdmatch.c
+++ b/tcpdmatch.c
@@ -19,6 +19,8 @@
/* System libraries. */
+#include <unistd.h>
+#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/socket.h>
@@ -30,9 +32,6 @@
#include <setjmp.h>
#include <string.h>
-extern void exit();
-extern int optind;
-extern char *optarg;
#ifndef INADDR_NONE
#define INADDR_NONE (-1) /* XXX should be 0xffffffff */
--- a/update.c
+++ b/update.c
@@ -19,6 +19,7 @@
/* System libraries */
+#include <unistd.h>
#include <stdio.h>
#include <syslog.h>
#include <string.h>
--- a/misc.c
+++ b/misc.c
@@ -14,11 +14,10 @@
#include <arpa/inet.h>
#include <stdio.h>
#include <string.h>
+#include <stdlib.h>
#include "tcpd.h"
-extern char *fgets();
-
#ifndef INADDR_NONE
#define INADDR_NONE (-1) /* XXX should be 0xffffffff */
#endif
--- a/fix_options.c
+++ b/fix_options.c
@@ -32,6 +32,7 @@
/* fix_options - get rid of IP-level socket options */
+void
fix_options(request)
struct request_info *request;
{
@@ -38,11 +38,8 @@
#ifdef IP_OPTIONS
unsigned char optbuf[BUFFER_SIZE / 3], *cp;
char lbuf[BUFFER_SIZE], *lp;
-#ifdef __GLIBC__
- size_t optsize = sizeof(optbuf), ipproto;
-#else
- int optsize = sizeof(optbuf), ipproto;
-#endif
+ socklen_t optsize = sizeof(optbuf);
+ int ipproto;
struct protoent *ip;
int fd = request->fd;
unsigned int opt;
--- a/socket.c
+++ b/socket.c
@@ -95,11 +95,7 @@
static struct sockaddr_in client;
static struct sockaddr_in server;
#endif
-#ifdef __GLIBC__
- size_t len;
-#else
- int len;
-#endif
+ socklen_t len;
char buf[BUFSIZ];
int fd = request->fd;
@@ -430,11 +426,7 @@
#else
struct sockaddr_in sin;
#endif
-#ifdef __GLIBC__
- size_t size = sizeof(sin);
-#else
- int size = sizeof(sin);
-#endif
+ socklen_t size;
/*
* Eat up the not-yet received datagram. Some systems insist on a