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From: Sven Geuer <sge@debian.org>
Date: Wed, 29 Oct 2025 19:31:11 +0000
Subject: Fix passing argument 4 of ReadFile from incompatible pointer type
Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1100245
Forwarded: https://github.com/nmap/nmap/pull/3070
Last-Update: 2025-03-28
ReadFile returns the number of read bytes in a DWORD, i.e. unsigned long,
not in an int.
Mangle returned value into an int when it is used with calling output(), it
cannot be greater than 1023 (= 0x3FF) anyway.
Last-Update: 2025-03-28
---
nselib/data/psexec/nmap_service.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/nselib/data/psexec/nmap_service.c b/nselib/data/psexec/nmap_service.c
index a6a563b..fc94930 100644
--- a/nselib/data/psexec/nmap_service.c
+++ b/nselib/data/psexec/nmap_service.c
@@ -109,7 +109,7 @@ static void go(int num, char *lpAppPath, char *env, int headless, int include_st
HANDLE stdout_read, stdout_write;
DWORD creation_flags;
- int bytes_read;
+ DWORD bytes_read;
char buffer[1024];
/* Create a security attributes structure. This is required to inherit handles. */
@@ -176,7 +176,7 @@ static void go(int num, char *lpAppPath, char *env, int headless, int include_st
while(ReadFile(stdout_read, buffer, 1023, &bytes_read, NULL))
{
if(strlen(readfile) == 0)
- output(num, buffer, bytes_read);
+ output(num, buffer, (int)(bytes_read && 0x7FFF));
}
CloseHandle(stdout_read);
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