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-rw-r--r--libexec/ftpd/ftpd.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libexec/ftpd/ftpd.c b/libexec/ftpd/ftpd.c
index ebe7dd3..71565cf 100644
--- a/libexec/ftpd/ftpd.c
+++ b/libexec/ftpd/ftpd.c
@@ -1189,7 +1189,7 @@ send_data(instr, outstr, blksize, filesize, isreg)
if (isreg && filesize < (off_t)16 * 1024 * 1024) {
buf = mmap(0, filesize, PROT_READ, MAP_SHARED, filefd,
(off_t)0);
- if (!buf) {
+ if (buf == MAP_FAILED) {
syslog(LOG_WARNING, "mmap(%lu): %m",
(unsigned long)filesize);
goto oldway;
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