Add many missing #includes and prototypes

This is pretty hacky in places (especially `term.h`), but it seems to be
enough.

Bug-Debian: https://bugs.debian.org/1067013
Forwarded: no
Last-Update: 2024-03-16

Patch-Name: add-missing-includes-and-prototypes.patch

5 files changed, 26 insertions, 18 deletions

diff --git a/Configure b/Configure
index 99d494b..38d70ad 100755
--- a/Configure
+++ b/Configure
@@ -3047,6 +3047,7 @@ echo " "
 echo "Checking for GNU cc in disguise and/or its version number..." >&4
 $cat >gccvers.c <<EOM
 #include <stdio.h>
+#include <stdlib.h>
 int main() {
 #ifdef __GNUC__
 #ifdef __VERSION__
@@ -4096,6 +4097,7 @@ echo " "
 echo "Checking your choice of C compiler and flags for coherency..." >&4
 $cat > try.c <<'EOF'
 #include <stdio.h>
+#include <stdlib.h>
 main() { printf("Ok\n"); exit(0); }
 EOF
 set X $cc $optimize $ccflags -o try $ldflags try.c $libs
@@ -4303,6 +4305,7 @@ echo " "
 echo "Checking for GNU C Library..." >&4
 cat >gnulibc.c <<EOM
 #include <stdio.h>
+#include <stdlib.h>
 int
 main()
 {
@@ -4718,7 +4721,7 @@ yes)
 		fi;;
 	*)
 		echo "main() { extern short $1$tdc; printf(\"%hd\", $1$tc); }" > t.c;
-		if $cc $optimize $ccflags $ldflags -o t t.c $libs >/dev/null 2>&1;
+		if $cc $optimize $ccflags -Wno-error=implicit-function-declaration $ldflags -o t t.c $libs >/dev/null 2>&1;
 		then tval=true;
 		else tval=false;
 		fi;
@@ -5526,6 +5529,7 @@ case "$d_wifstat" in
 	esac
 	echo "friends with status declared as '$type status'..."
 	$cat >foo.c <<EOCP
+#include <stdlib.h>
 #include <sys/types.h>
 #include <sys/wait.h>
 
@@ -6108,6 +6112,7 @@ echo " "
 echo "Testing to see if we should include <time.h>, <sys/time.h> or both." >&4
 $echo $n "I'm now running the test program...$c"
 $cat >try.c <<'EOCP'
+#include <stdlib.h>
 #include <sys/types.h>
 #ifdef I_TIME
 #include <time.h>
diff --git a/filter.c b/filter.c
index c2cca84..535ea18 100644
--- a/filter.c
+++ b/filter.c
@@ -25,7 +25,7 @@
 
 static FILE* filt_wr;
 static FILE* filt_rd;
-static int pipe1[2], pipe2[2];
+static int pipe_1[2], pipe_2[2];
 static int filter_restarting;
 static int need_to_filter = 0;
 static int want_filter = 1;	/* consider making an option later */
@@ -39,7 +39,7 @@ void
 filter_init()
 {
     filt_wr = filt_rd = NULL;
-    pipe1[0] = pipe1[1] = pipe2[0] = pipe2[1] = -1;
+    pipe_1[0] = pipe_1[1] = pipe_2[0] = pipe_2[1] = -1;
     filter_restarting = 0;
 }
 
@@ -75,27 +75,27 @@ filter_restart()
 	printf("\nStarting filter `%s'", filter);
 	fflush(stdout);		/* print it *now* */
     }
-    if (pipe(pipe1) < 0)
+    if (pipe(pipe_1) < 0)
 	perror("creating output pipe");
-    if (pipe(pipe2) < 0)
+    if (pipe(pipe_2) < 0)
 	perror("creating input pipe");
     if ((filter_pid = fork()) < 0)
 	perror("filter_restart");
     else if (filter_pid > 0) {
-	if ((filt_wr = fdopen(pipe1[1], "w")) == NULL) {
+	if ((filt_wr = fdopen(pipe_1[1], "w")) == NULL) {
 	    perror("configuring output pipe");
 	    filter_cleanup();
 	    return;
 	}
-	if ((filt_rd = fdopen(pipe2[0], "r")) == NULL) {
+	if ((filt_rd = fdopen(pipe_2[0], "r")) == NULL) {
 	    perror("configuring input pipe");
 	    filter_cleanup();
 	    return;
 	}
 	setvbuf(filt_wr, NULL, _IOLBF, BUFSIZ);	/* line buffering */
 	setvbuf(filt_rd, NULL, _IOLBF, BUFSIZ);
-	close(pipe1[0]);
-	close(pipe2[1]);
+	close(pipe_1[0]);
+	close(pipe_2[1]);
     }
     else {
 	close(STDIN_FILENO);
@@ -103,18 +103,18 @@ filter_restart()
 
 	sigignore(SIGINT);
 
-	if (dup2(pipe1[0], STDIN_FILENO) < 0) {
+	if (dup2(pipe_1[0], STDIN_FILENO) < 0) {
 	    perror("reopening child input stream");
 	    finalize(1);
 	}
 
-	if (dup2(pipe2[1], STDOUT_FILENO) < 0) {
+	if (dup2(pipe_2[1], STDOUT_FILENO) < 0) {
 	    perror("reopening child output stream");
 	    finalize(1);
 	}
 
-	close(pipe1[1]);
-	close(pipe2[0]);
+	close(pipe_1[1]);
+	close(pipe_2[0]);
 	if (execl(filter, filter, NULL) < 0) {
 	    perror("switching to filter process");
 	    finalize(1);
@@ -281,8 +281,8 @@ filter_cleanup()
 	filt_rd = NULL;
     }
 
-    pipe1[0] = pipe1[1] = 0;
-    pipe2[0] = pipe2[1] = 0;
+    pipe_1[0] = pipe_1[1] = 0;
+    pipe_2[0] = pipe_2[1] = 0;
 }
 
 #endif /* USE_FILTER */
diff --git a/nntpinit.c b/nntpinit.c
index 0be1514..5a20e1e 100644
--- a/nntpinit.c
+++ b/nntpinit.c
@@ -21,6 +21,7 @@
 WSADATA wsaData;
 #else
 #include <sys/socket.h>
+#include <arpa/inet.h>
 #include <netinet/in.h>
 #ifdef NONETDB
 # define IPPORT_NNTP	((unsigned short) 119)
@@ -43,7 +44,6 @@ int socket _((int, struct sockproto *, struct sockaddr_in *, int));
 #endif /* DECNET */
 
 #ifndef WINSOCK
-unsigned long inet_addr _((char*));
 #ifndef NONETDB
 struct servent* getservbyname();
 struct hostent* gethostbyname();
diff --git a/parsedate.y b/parsedate.y
index 5b20c2a..46de18e 100644
--- a/parsedate.y
+++ b/parsedate.y
@@ -18,6 +18,7 @@
 /* SUPPRESS 593 on yynewstate *//* Label was not used */
 /* SUPPRESS 595 on yypvt *//* Automatic variable may be used before set */
 #include <stdio.h>
+#include <string.h>
 #include <sys/types.h>
 #include <ctype.h>
 #include "config.h"
@@ -95,6 +96,7 @@ static time_t	yyRelSeconds;
 extern struct tm	*localtime();
 
 static void		date_error();
+int			date_lex();
 %}
 
 %union {
diff --git a/term.h b/term.h
index f354104..3587666 100644
--- a/term.h
+++ b/term.h
@@ -253,7 +253,8 @@ void draw_mousebar _((int,bool_int));
 bool check_mousebar _((int,int,int,int,int,int));
 void add_tc_string _((char*,char*));
 char* tc_color_capability _((char*));
-#ifdef MSDOS
+int tgetent _((char*, const char*));
+int tgetflag _((const char*));
+int tgetnum _((const char*));
 int tputs _((char*,int,int(*) _((char_int))));
 char* tgoto _((char*,int,int));
-#endif