Apply changes developed by Stephen Montgomery-Smith and required to

actually use CTM to distribute FreeBSD updates. They have been further
refined by Julian H. Stacey.

These changes add support for delta numbers with more than 5 digits
and better compression formats.

Submitted by:	Stephen Montgomery-Smith, Julian H. Stacey
Approved by:	antoine (implicit)

1 files changed, 25 insertions, 0 deletions

diff --git a/misc/ctm/files/patch-ctm_ctm.c b/misc/ctm/files/patch-ctm_ctm.c
new file mode 100644
index 000000000000..f586f430c4e2
--- /dev/null
+++ b/misc/ctm/files/patch-ctm_ctm.c
@@ -0,0 +1,25 @@
+--- ctm/ctm.c.orig	2018-10-27 15:56:22 UTC
++++ ctm/ctm.c
+@@ -213,6 +213,22 @@ Proc(char *filename, unsigned applied)
+ 	strcat(p,filename);
+ 	f = popen(p,"r");
+ 	if(!f) { warn("%s", p); return Exit_Garbage; }
++    } else if(p && !strcmp(p,".bz2")) {
++	p = alloca(20 + strlen(filename));
++	strcpy(p,"bzcat < ");
++	strcat(p,filename);
++	f = popen(p,"r");
++	if(!f) { warn("%s", p); return Exit_Garbage; }
++    } else if(p && !strcmp(p,".xz")) {
++	if (system("which -s xz") != 0) {
++	    fprintf(stderr, "xz is not found in $PATH.  You can install it from ports, or adjust $PATH.\n");
++	    return Exit_Garbage;
++	}
++	p = alloca(20 + strlen(filename));
++	strcpy(p,"xz -dc < ");
++	strcat(p,filename);
++	f = popen(p,"r");
++	if(!f) { warn("%s", p); return Exit_Garbage; }
+     } else {
+ 	p = 0;
+ 	f = fopen(filename,"r");