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ftppr: the server's answer to USER reaches the client (#1284)
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Browse Source 
A server which logs in on USER alone (230, anonymous FTP often does) or
refuses it had its answer read but not handed back: ftplogin() gave the
length of what it read only for the answer to PASS. The client, told
331 by ftppr and waiting for the answer to its PASS, waited until the
time out. The answer to USER is the client's now when there is no PASS.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Vladimir Dubrovin 2026-10-26 17:39:59 +03:00
parent 248af1412d
commit 4871b974c0
1 changed files with 4 additions and 1 deletions
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5
src/ftp.c
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@ -36,7 +36,7 @@ int ftplogin(struct clientparam *param, char *nbuf, int *innbuf) {
if(i < 3) return 706;
buf[i] = 0;
if(atoi(buf)/100 != 2) {
*innbuf = i;
if(innbuf)*innbuf = i;
return 702;
}
sprintf(buf, "USER %.128s\r\n", param->extusername?param->extusername:(unsigned char *)"anonymous");
@ -75,6 +75,9 @@ int ftplogin(struct clientparam *param, char *nbuf, int *innbuf) {
return 701;
}
}
/* USER answered at once, logged in (230) or refused: that answer is
the client's, waiting for one to its PASS */
else if(innbuf)*innbuf = i;
if(res != 2) {
return 700;
}