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dup can give a negative value

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This commit is contained in:
David Crosby
2015-07-21 22:49:33 -06:00
committed by Tatsuya Kinoshita
parent a00c90930b
commit 73550486ff
1 changed files with 5 additions and 1 deletions
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6
ftp.c
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@@ -123,6 +123,7 @@ static int
ftp_login(FTP ftp) ftp_login(FTP ftp)
{ {
int sock, status; int sock, status;
int sock_wf;
sock = openSocket(ftp->host, "ftp", 21); sock = openSocket(ftp->host, "ftp", 21);
if (sock < 0) if (sock < 0)
@@ -169,7 +170,10 @@ ftp_login(FTP ftp)
} }
} }
ftp->rf = newInputStream(sock); ftp->rf = newInputStream(sock);
ftp->wf = fdopen(dup(sock), "wb"); if ((sock_wf = dup(sock)) >= 0 )
ftp->wf = fdopen(sock_wf, "wb");
else
goto open_err;
if (!ftp->rf || !ftp->wf) if (!ftp->rf || !ftp->wf)
goto open_err; goto open_err;
IStype(ftp->rf) |= IST_UNCLOSE; IStype(ftp->rf) |= IST_UNCLOSE;