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-rw-r--r--src/xz/coder.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/xz/coder.c b/src/xz/coder.c
index b123ec5b..69b1225d 100644
--- a/src/xz/coder.c
+++ b/src/xz/coder.c
@@ -284,7 +284,10 @@ coder_set_compression_settings(void)
static bool
is_format_xz(void)
{
- return strm.avail_in >= 6 && memcmp(in_buf.u8, "\3757zXZ", 6) == 0;
+ // Specify the magic as hex to be compatible with EBCDIC systems.
+ static const uint8_t magic[6] = { 0xFD, 0x37, 0x7A, 0x58, 0x5A, 0x00 };
+ return strm.avail_in >= sizeof(magic)
+ && memcmp(in_buf.u8, magic, sizeof(magic)) == 0;
}