MFC r309873:

ed(1): Prevent possible overflows during allocation.

Make sure the parameters used for malloc(3) can hold size_t sizes.
This should help ed(1) handle bigger data in the future.

3 files changed, 4 insertions, 4 deletions

diff --git a/bin/ed/ed.h b/bin/ed/ed.h
index 8cb8cec..597e346 100644
--- a/bin/ed/ed.h
+++ b/bin/ed/ed.h
@@ -115,7 +115,7 @@ if (--mutex == 0) { \
 /* REALLOC: assure at least a minimum size for buffer b */
 #define REALLOC(b,n,i,err) \
 if ((i) > (n)) { \
-	int ti = (n); \
+	size_t ti = (n); \
 	char *ts; \
 	SPL1(); \
 	if ((b) != NULL) { \
@@ -141,7 +141,7 @@ if ((i) > (n)) { \
 /* REALLOC: assure at least a minimum size for buffer b */
 #define REALLOC(b,n,i,err) \
 if ((i) > (n)) { \
-	int ti = (n); \
+	size_t ti = (n); \
 	char *ts; \
 	SPL1(); \
 	if ((ts = (char *) realloc((b), ti += max((i), MINBUFSZ))) == NULL) { \
diff --git a/bin/ed/glbl.c b/bin/ed/glbl.c
index dfb44d2..d367798 100644
--- a/bin/ed/glbl.c
+++ b/bin/ed/glbl.c
@@ -146,7 +146,7 @@ int
 set_active_node(line_t *lp)
 {
 	if (active_last + 1 > active_size) {
-		int ti = active_size;
+		size_t ti = active_size;
 		line_t **ts;
 		SPL1();
 #if defined(sun) || defined(NO_REALLOC_NULL)
diff --git a/bin/ed/main.c b/bin/ed/main.c
index 1749314..6cb7d03 100644
--- a/bin/ed/main.c
+++ b/bin/ed/main.c
@@ -1356,7 +1356,7 @@ handle_hup(int signo)
 	char *hup = NULL;		/* hup filename */
 	char *s;
 	char ed_hup[] = "ed.hup";
-	int n;
+	size_t n;
 
 	if (!sigactive)
 		quit(1);