ckolivas/lrzip
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Refuse to compress a file smaller than a minimum size.

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ckolivas 2011-03-15 10:40:14 +11:00
parent fca5d4232c
commit 091909b552
1 changed files with 4 additions and 0 deletions
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4
rzip.c
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@ -689,6 +689,8 @@ static void mmap_stdin(rzip_control *control, uchar *buf, struct rzip_state *st)
total += ret; total += ret;
if (ret == 0) { if (ret == 0) {
/* Should be EOF */ /* Should be EOF */
if (total < 128)
failure("Will not compress a tiny file\n");
print_maxverbose("Shrinking chunk to %lld\n", total); print_maxverbose("Shrinking chunk to %lld\n", total);
buf = (uchar *)mremap(buf, st->chunk_size, total, 0); buf = (uchar *)mremap(buf, st->chunk_size, total, 0);
if (unlikely(buf == MAP_FAILED)) if (unlikely(buf == MAP_FAILED))
@ -785,6 +787,8 @@ void rzip_fd(rzip_control *control, int fd_in, int fd_out)
if (!STDIN) { if (!STDIN) {
len = control->st_size = s.st_size; len = control->st_size = s.st_size;
if (len < 128)
failure("Will not compress a tiny file\n");
print_verbose("File size: %lld\n", len); print_verbose("File size: %lld\n", len);
} else } else
control->st_size = 0; control->st_size = 0;