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(extract_mangle): Check for overflow when converting off_t to size_t.

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Use off_t, size_t when appropriate.  Remove now-useless casts.
This commit is contained in:
Paul Eggert
1997-10-31 00:58:55 +00:00
parent dab18c15bd
commit f2bad2db48
1 changed files with 6 additions and 3 deletions
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9
src/mangle.c
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@@ -44,17 +44,20 @@ int mangled_num = 0;
void
extract_mangle (void)
{
int size = current_stat.st_size;
off_t size = current_stat.st_size;
char *buffer = xmalloc ((size_t) (size + 1));
char *copy = buffer;
char *cursor = buffer;
if (size != (size_t) size || size == (size_t) -1)
FATAL_ERROR ((0, 0, _("Memory exhausted")));
buffer[size] = '\0';
while (size > 0)
{
union block *block = find_next_block ();
int available;
size_t available;
if (!block)
{
@@ -64,7 +67,7 @@ extract_mangle (void)
available = available_space_after (block);
if (available > size)
available = size;
memcpy (copy, block->buffer, (size_t) available);
memcpy (copy, block->buffer, available);
copy += available;
size -= available;
set_next_block_after ((union block *) (block->buffer + available - 1));