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path: root/src/Common/libzip/zip_source_window.c
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Diffstat (limited to 'src/Common/libzip/zip_source_window.c')
-rw-r--r--src/Common/libzip/zip_source_window.c17
1 files changed, 14 insertions, 3 deletions
diff --git a/src/Common/libzip/zip_source_window.c b/src/Common/libzip/zip_source_window.c
index f4701a0..d9e90bf 100644
--- a/src/Common/libzip/zip_source_window.c
+++ b/src/Common/libzip/zip_source_window.c
@@ -1,6 +1,6 @@
/*
zip_source_window.c -- return part of lower source
- Copyright (C) 2012-2017 Dieter Baron and Thomas Klausner
+ Copyright (C) 2012-2018 Dieter Baron and Thomas Klausner
This file is part of libzip, a library to manipulate ZIP archives.
The authors can be contacted at <libzip@nih.at>
@@ -121,7 +121,6 @@ window_read(zip_source_t *src, void *_ctx, void *data, zip_uint64_t len, zip_sou
struct window *ctx;
zip_int64_t ret;
zip_uint64_t n, i;
- char b[8192];
ctx = (struct window *)_ctx;
@@ -154,18 +153,30 @@ window_read(zip_source_t *src, void *_ctx, void *data, zip_uint64_t len, zip_sou
}
if (!ctx->needs_seek) {
+ DEFINE_BYTE_ARRAY(b, BUFSIZE);
+
+ if (!byte_array_init(b, BUFSIZE)) {
+ zip_error_set(&ctx->error, ZIP_ER_MEMORY, 0);
+ return -1;
+ }
+
for (n = 0; n < ctx->start; n += (zip_uint64_t)ret) {
- i = (ctx->start - n > sizeof(b) ? sizeof(b) : ctx->start - n);
+ i = (ctx->start - n > BUFSIZE ? BUFSIZE : ctx->start - n);
if ((ret = zip_source_read(src, b, i)) < 0) {
_zip_error_set_from_source(&ctx->error, src);
+ byte_array_fini(b);
return -1;
}
if (ret == 0) {
zip_error_set(&ctx->error, ZIP_ER_EOF, 0);
+ byte_array_fini(b);
return -1;
}
}
+
+ byte_array_fini(b);
}
+
ctx->offset = ctx->start;
return 0;