$NetBSD: patch-ae,v 1.7 2025/10/12 00:57:39 mrg Exp $

- use required standard headers
- make sure index() is available 
- don't provide own declarations of standard functions
- fix path to sendmail (although, is this really adequately MI?)
- buffer length fix
- port for GCC 14

--- metamail/splitmail.c.orig	1994-01-31 14:23:14.000000000 -0800
+++ metamail/splitmail.c	2025-10-11 17:24:38.158624097 -0700
@@ -21,14 +21,26 @@ WITHOUT ANY EXPRESS OR IMPLIED WARRANTIE
  ******************************************************* */
 
 #include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <config.h>
 #include <ctype.h>
 #include <time.h>
 
+#ifndef index
+#define index(a, b) strchr(a, b)
+#endif
+
 #define MINCHUNKSIZE 20000 /* Better be enough to hold the headers, or we die! */
-extern char *malloc(), *index(), *getmyname();
+extern char *getmyname();
+
+int ShareThisHeader();
+void HandleOnePart();
+int ULstrcmp();
+int IllegalContentType();
 
 #ifdef AMIGA
 #define Prototype   extern
@@ -40,11 +52,11 @@ extern char *malloc(), *index(), *getmyn
 #define NORMALDELIVERYCMD NormalDeliveryCmd
 #define VERBOSEDELIVERYCMD VerboseDeliveryCmd
 #else
-extern char *getenv();
-#define NORMALDELIVERYCMD "/usr/lib/sendmail -t -oi"
-#define VERBOSEDELIVERYCMD "/usr/lib/sendmail -t -v -oi"
+#define NORMALDELIVERYCMD "/usr/sbin/sendmail -t -oi"
+#define VERBOSEDELIVERYCMD "/usr/sbin/sendmail -t -v -oi"
 #endif
 
+void
 usageexit() {
     fprintf(stderr, "Usage:  splitmail [-d] [-v] [-s splitsize] [-i id-suffix] [-p prefix] [file-name]\n");
     exit(-1);
@@ -67,7 +79,9 @@ char *s;
     }
 }
 
+int
 main(argc, argv)
+int argc;
 char **argv;
 {
     int i, DoDeliver=0, SplitSize=DEFAULT_SPLIT_SIZE, dum, InNewline=1, bytesread, whichpart=1, Verbose=0, numparts = -1, c;
@@ -194,7 +208,7 @@ char **argv;
 	s = endofheader(from);  /* would be index(from, '\n'),
 				 but need to check for continuation lines */
         *s = '\0';
-	if (ShareThisHeader(from, SubjectBuf, &OrigID)) {
+	if (ShareThisHeader(from, SubjectBuf, sizeof(SubjectBuf), &OrigID)) {
 	    strcat(SharedHeaders, from);
 	    strcat(SharedHeaders, "\n");
 	}
@@ -238,6 +252,7 @@ char **argv;
     return(0);
 }
 
+void
 HandleOnePart(DoDeliver, deliverycmd, prefix, numparts, whichpart, SharedHeaders, SubjectBuf, id, MessageID, bigbuf, OrigID)
 int DoDeliver, numparts, whichpart;
 char *deliverycmd, *prefix, *SharedHeaders, *SubjectBuf, *id, *MessageID, *bigbuf, *OrigID;
@@ -339,9 +354,11 @@ static char *SharedHeads[] = {
     NULL
 };
 
-ShareThisHeader(s, SubjectBuf, OrigID)
+int
+ShareThisHeader(s, SubjectBuf, size, OrigID)
 char *s;
 char *SubjectBuf;
+size_t size;
 char **OrigID;
 {
     int i;
@@ -361,7 +378,8 @@ char **OrigID;
     }
     if (!ULstrcmp(s, "subject")) {
         *colon = ':';
-        strcpy(SubjectBuf, ++colon);
+        strncpy(SubjectBuf, ++colon, size);
+	SubjectBuf[size - 1] = '\0';
         return(0);
     }
     if (!ULstrcmp(s, "content-type")) {
@@ -379,6 +397,7 @@ char **OrigID;
 
 static char *tspecials = "()<>@,;:\\\"/[]?.=";
 
+int
 IllegalContentType(ctype)
 char *ctype;
 {