isinstallable support

[Moshe Zadka <m@moshez.org>]

Here's a patch

Index: status.c
===================================================================
RCS file: /cvs/debian-boot/debian-installer/main-menu/status.c,v
retrieving revision 1.16
diff -u -r1.16 status.c
--- status.c	2002/05/27 14:12:56	1.16
+++ status.c	2002/06/23 18:23:07
@@ -10,13 +10,24 @@
 #include <search.h>
 #include <locale.h>
 
+/* Check whether a package is installable */
+int isinstallable(char *name) {
+	char isinstallable[1024];
+	struct stat statbuf;
+
+	sprintf(isinstallable, DPKGDIR "info/%s.isinstallable", name);
+	if (stat(isinstallable, &statbuf) == 0)
+		return ! SYSTEM(isinstallable);
+	return 1;
+}
+
 /*
  * Read status file and generate and return a linked list of packages.
  */
 struct package_t *status_read(void) {
 	FILE *f;
 	char *b, buf[BUFSIZE], *lang_code, *lingua = NULL;
-	int i;
+	int i, skipping;
 	struct package_t *found, *newp, *p = 0;
 	struct language_description *langdesc;
 
@@ -37,9 +48,17 @@
 	while (fgets(buf, BUFSIZE, f) && !feof(f)) {
 		buf[strlen(buf)-1] = 0;
 		if (strstr(buf, "Package: ") == buf) {
-			newp = tree_add(buf + 9);
-			newp->next = p;
-			p = newp;
+			char *name = buf + 9;
+			if (!isinstallable(name)) {
+				skipping  = 1
+			} else {
+				newp = tree_add(name);
+				newp->next = p;
+				p = newp;
+				skipping = 0;
+			}
+		} else if (skipping) {
+			continue;
 		}
 		else if (strstr(buf, "installer-menu-item: ") == buf) {
 			p->installer_menu_item = atoi(buf + 21);


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