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-rw-r--r--tools/mailsplit.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/mailsplit.c b/tools/mailsplit.c
index 9379fbc..7b71208 100644
--- a/tools/mailsplit.c
+++ b/tools/mailsplit.c
@@ -116,8 +116,9 @@ int main(int argc, char **argv)
}
size = st.st_size;
map = mmap(NULL, size, PROT_READ, MAP_PRIVATE, fd, 0);
- if (-1 == (int)(long)map) {
+ if (map == MAP_FAILED) {
perror("mmap");
+ close(fd);
exit(1);
}
close(fd);