Look at the .ctm_status file and ignores all patches already applied.

Reviewed by:	phk
Submitted by:	J Wunsch <j@uriah.heep.sax.de>

usr.sbin/ctm/ctm/Makefile

@@ -6,7 +6,7 @@
 # this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp
 # ----------------------------------------------------------------------------
 #
-# $Id: Makefile,v 1.5 1994/09/22 02:49:15 phk Exp $
+# $Id: Makefile,v 1.6 1994/10/24 20:09:18 phk Exp $
 #
 
 PROG=		ctm
@@ -18,5 +18,7 @@ DPADD+=		${LIBMD}
 NOMAN=		1
 CFLAGS+=	-Wall -g
 
-.include "../../Makefile.inc"
+.if exists(${.CURDIR}/../../Makefile.inc)
+.include "${.CURDIR}/../../Makefile.inc"
+.endif
 .include <bsd.prog.mk>

usr.sbin/ctm/ctm/ctm.c

@@ -6,7 +6,7 @@
  * this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp
  * ----------------------------------------------------------------------------
  *
- * $Id: ctm.c,v 1.6 1994/11/26 08:57:40 phk Exp $
+ * $Id: ctm.c,v 1.7 1994/12/01 21:05:28 phk Exp $
  *
  * This is the client program of 'CTM'.  It will apply a CTM-patch to a 
  * collection of files.
@@ -35,7 +35,9 @@
 #define EXTERN /* */
 #include "ctm.h"
 
-extern int Proc(char *);
+#define CTM_STATUS ".ctm_status"
+
+extern int Proc(char *, unsigned applied);
 
 int
 main(int argc, char **argv) 
@@ -44,6 +46,8 @@ main(int argc, char **argv)
     int c;
     extern int optopt,optind;
     extern char * optarg;
+    FILE *statfile;
+    unsigned applied = 0;
     
     Verbose = 1;
     Paranoid = 1;
@@ -81,11 +85,19 @@ main(int argc, char **argv)
     argc -= optind;
     argv += optind;
 
+    if((statfile = fopen(CTM_STATUS, "r")) == NULL)
+	fprintf(stderr, "Warning: " CTM_STATUS " not found.\n");
+    else {
+	fscanf(statfile, "%*s %u", &applied);
+	fclose(statfile);
+    }
+    
     if(!argc)
-	stat |= Proc("-");
+	stat |= Proc("-", applied);
 
     while(argc-- && stat == Exit_Done) {
-	stat |= Proc(*argv++);
+	stat |= Proc(*argv++, applied);
+	stat &= ~Exit_Version;
     }
 
     if(stat == Exit_Done)
@@ -97,7 +109,7 @@ main(int argc, char **argv)
 }
 
 int
-Proc(char *filename)
+Proc(char *filename, unsigned applied)
 {
     FILE *f;
     int i;
@@ -152,7 +164,7 @@ Proc(char *filename)
     if(!p)
 	rewind(f);
 
-    if((i=Pass1(f)))
+    if((i=Pass1(f, applied))) 
 	return i;
 
     if(!p) {

usr.sbin/ctm/ctm/ctm.h

@@ -6,7 +6,7 @@
  * this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp
  * ----------------------------------------------------------------------------
  *
- * $Id: ctm.h,v 1.4 1994/09/22 02:49:16 phk Exp $
+ * $Id: ctm.h,v 1.5 1994/10/24 20:09:21 phk Exp $
  *
  */
 
@@ -106,6 +106,7 @@ EXTERN int CheckIt;
 #define Exit_Forcible	16
 #define Exit_Mess	32
 #define Exit_Done	64
+#define Exit_Version	128
 
 char * String(char *s);
 void Fatal_(int ln, char *fn, char *kind);
@@ -124,7 +125,7 @@ u_char * Fdata(FILE *fd, int u_chars, MD5_CTX *ctx);
 #define GETBYTECNT(p,q) if(0 >((p)= Fbytecnt(fd,&ctx,(q)))) return BADREAD
 #define GETDATA(p,q) if(!((p) = Fdata(fd,(q),&ctx))) return BADREAD
 
-int Pass1(FILE *fd);
+int Pass1(FILE *fd, unsigned applied);
 int Pass2(FILE *fd);
 int Pass3(FILE *fd);
 

usr.sbin/ctm/ctm/ctm_pass1.c

@@ -6,7 +6,7 @@
  * this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp
  * ----------------------------------------------------------------------------
  *
- * $Id: ctm_pass1.c,v 1.6 1995/02/04 19:20:47 phk Exp $
+ * $Id: ctm_pass1.c,v 1.7 1995/02/25 05:02:18 phk Exp $
  *
  */
 
@@ -18,7 +18,7 @@
  */
 
 int
-Pass1(FILE *fd)
+Pass1(FILE *fd, unsigned applied)
 {
     u_char *p,*q;
     MD5_CTX ctx;
@@ -26,7 +26,8 @@ Pass1(FILE *fd)
     u_char *md5=0,*trash=0;
     struct CTM_Syntax *sp;
     int slashwarn=0;
-
+    unsigned current;
+    
     if(Verbose>3) 
 	printf("Pass1 -- Checking integrity of incoming CTM-patch\n");
     MD5Init (&ctx);
@@ -52,6 +53,14 @@ Pass1(FILE *fd)
     GETFIELDCOPY(TimeStamp,' ');			/* <TimeStamp> */
     GETFIELDCOPY(Prefix,'\n');				/* <Prefix> */
 
+    sscanf(Nbr, "%u", &current);
+    if(current <= applied) {
+	if(Verbose)
+	    fprintf(stderr,"Delta number %u is already applied; ignoring.\n",
+		    current);
+	return Exit_Version;
+    }
+    
     for(;;) {
 	if(md5)		{Free(md5), md5 = 0;}
 	if(trash)	{Free(trash), trash = 0;}