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reactos/rosapps/net/ncftp/libncftp/open.c

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Added ncftp to rosapps svn path=/trunk/; revision=2453
2001-12-30 06:31:25 +00:00
/* open.c
*
* Copyright (c) 1996-2001 Mike Gleason, NCEMRSoft.
* All rights reserved.
*
*/
#include "syshdrs.h"
static void
FTPDeallocateHost(const FTPCIPtr cip)
{
/* Requires the cip->bufSize field set,
* and the cip->buf set if the
* buffer is allocated.
*/
if (cip->buf != NULL) {
(void) memset(cip->buf, 0, cip->bufSize);
free(cip->buf);
cip->buf = NULL;
}
if (cip->startingWorkingDirectory != NULL) {
free(cip->startingWorkingDirectory);
cip->startingWorkingDirectory = NULL;
}
#if USE_SIO
DisposeSReadlineInfo(&cip->ctrlSrl);
#endif
DisposeLineListContents(&cip->lastFTPCmdResultLL);
} /* FTPDeallocateHost */
static int
FTPAllocateHost(const FTPCIPtr cip)
{
char *buf;
/* Requires the cip->bufSize field set,
* and the cip->buf cleared if the
* buffer is not allocated.
*/
if (cip->buf == NULL) {
buf = (char *) calloc((size_t) 1, cip->bufSize);
if (buf == NULL) {
Error(cip, kDontPerror, "Malloc failed.\n");
cip->errNo = kErrMallocFailed;
return (kErrMallocFailed);
}
cip->buf = buf;
}
return (kNoErr);
} /* FTPAllocateHost */
void
FTPInitializeOurHostName(const FTPLIPtr lip)
{
if (lip == NULL)
return;
if (strcmp(lip->magic, kLibraryMagic))
return;
if (lip->htried == 0) {
(void) memset(lip->ourHostName, 0, sizeof(lip->ourHostName));
lip->hresult = GetOurHostName(lip->ourHostName, sizeof(lip->ourHostName));
}
lip->htried++;
} /* FTPInitializeOurHostName */
void
FTPInitializeAnonPassword(const FTPLIPtr lip)
{
if (lip == NULL)
return;
if (strcmp(lip->magic, kLibraryMagic))
return;
FTPInitializeOurHostName(lip);
if (lip->defaultAnonPassword[0] == '\0') {
#ifdef SPAM_PROBLEM_HAS_BEEN_SOLVED_FOREVER
GetUsrName(lip->defaultAnonPassword, sizeof(lip->defaultAnonPassword));
(void) STRNCAT(lip->defaultAnonPassword, "@");
/* Default to the "user@" notation
* supported by NcFTPd and wu-ftpd.
*/
if (lip->htried > 0)
(void) STRNCAT(lip->defaultAnonPassword, lip->ourHostName);
#else
(void) STRNCPY(lip->defaultAnonPassword, "NcFTP@");
#endif
}
} /* FTPInitializeAnonPassword */
int
FTPLoginHost(const FTPCIPtr cip)
{
ResponsePtr rp;
int result = kErrLoginFailed;
int anonLogin;
int sentpass = 0;
int fwloggedin;
int firstTime;
char cwd[512];
if (cip == NULL)
return (kErrBadParameter);
if ((cip->firewallType < kFirewallNotInUse) || (cip->firewallType > kFirewallLastType))
return (kErrBadParameter);
if (strcmp(cip->magic, kLibraryMagic))
return (kErrBadMagic);
anonLogin = 0;
if (cip->user[0] == '\0')
(void) STRNCPY(cip->user, "anonymous");
if ((strcmp(cip->user, "anonymous") == 0) || (strcmp(cip->user, "ftp") == 0)) {
anonLogin = 1;
/* Try to get the email address if you didn't specify
* a password when the user is anonymous.
*/
if (cip->pass[0] == '\0') {
FTPInitializeAnonPassword(cip->lip);
(void) STRNCPY(cip->pass, cip->lip->defaultAnonPassword);
}
}
rp = InitResponse();
if (rp == NULL) {
result = kErrMallocFailed;
cip->errNo = kErrMallocFailed;
goto done2;
}
for (firstTime = 1, fwloggedin = 0; ; ) {
/* Here's a mini finite-automaton for the login process.
*
* Originally, the FTP protocol was designed to be entirely
* implementable from a FA. It could be done, but I don't think
* it's something an interactive process could be the most
* effective with.
*/
if (firstTime != 0) {
rp->code = 220;
firstTime = 0;
} else if (result < 0) {
goto done;
}
switch (rp->code) {
case 220: /* Welcome, ready for new user. */
if ((cip->firewallType == kFirewallNotInUse) || (fwloggedin != 0)) {
ReInitResponse(cip, rp);
result = RCmd(cip, rp, "USER %s", cip->user);
} else if (cip->firewallType == kFirewallUserAtSite) {
ReInitResponse(cip, rp);
result = RCmd(cip, rp, "USER %s@%s", cip->user, cip->host);
} else if (cip->firewallType == kFirewallUserAtUserPassAtPass) {
ReInitResponse(cip, rp);
result = RCmd(cip, rp, "USER %s@%s@%s", cip->user, cip->firewallUser, cip->host);
} else if (cip->firewallType == kFirewallUserAtSiteFwuPassFwp) {
ReInitResponse(cip, rp);
result = RCmd(cip, rp, "USER %s@%s %s", cip->user, cip->host, cip->firewallUser);
} else if (cip->firewallType == kFirewallFwuAtSiteFwpUserPass) {
/* only reached when !fwloggedin */
ReInitResponse(cip, rp);
result = RCmd(cip, rp, "USER %s@%s", cip->firewallUser, cip->host);
} else if (cip->firewallType > kFirewallNotInUse) {
ReInitResponse(cip, rp);
result = RCmd(cip, rp, "USER %s", cip->firewallUser);
} else {
goto unknown;
}
break;
case 230: /* 230 User logged in, proceed. */
case 231: /* User name accepted. */
case 202: /* Command not implemented, superfluous at this site. */
if ((cip->firewallType == kFirewallNotInUse) || (fwloggedin != 0))
goto okay;
/* Now logged in to the firewall. */
fwloggedin++;
if (cip->firewallType == kFirewallLoginThenUserAtSite) {
ReInitResponse(cip, rp);
result = RCmd(cip, rp, "USER %s@%s", cip->user, cip->host);
} else if (cip->firewallType == kFirewallUserAtUserPassAtPass) {
goto okay;
} else if (cip->firewallType == kFirewallOpenSite) {
ReInitResponse(cip, rp);
result = RCmd(cip, rp, "OPEN %s", cip->host);
} else if (cip->firewallType == kFirewallSiteSite) {
ReInitResponse(cip, rp);
result = RCmd(cip, rp, "SITE %s", cip->host);
} else if (cip->firewallType == kFirewallFwuAtSiteFwpUserPass) {
/* only reached when !fwloggedin */
ReInitResponse(cip, rp);
result = RCmd(cip, rp, "USER %s", cip->user);
} else /* kFirewallUserAtSite */ {
goto okay;
}
break;
case 421: /* 421 Service not available, closing control connection. */
result = kErrHostDisconnectedDuringLogin;
goto done;
case 331: /* 331 User name okay, need password. */
if ((cip->firewallType == kFirewallNotInUse) || (fwloggedin != 0)) {
if ((cip->pass[0] == '\0') && (cip->passphraseProc != NoGetPassphraseProc))
(*cip->passphraseProc)(cip, &rp->msg, cip->pass, sizeof(cip->pass));
ReInitResponse(cip, rp);
result = RCmd(cip, rp, "PASS %s", cip->pass);
} else if (cip->firewallType == kFirewallUserAtSite) {
ReInitResponse(cip, rp);
result = RCmd(cip, rp, "PASS %s", cip->pass);
} else if (cip->firewallType == kFirewallUserAtUserPassAtPass) {
ReInitResponse(cip, rp);
result = RCmd(cip, rp, "PASS %s@%s", cip->pass, cip->firewallPass);
} else if (cip->firewallType == kFirewallUserAtSiteFwuPassFwp) {
ReInitResponse(cip, rp);
result = RCmd(cip, rp, "PASS %s", cip->pass);
} else if (cip->firewallType == kFirewallFwuAtSiteFwpUserPass) {
/* only reached when !fwloggedin */
ReInitResponse(cip, rp);
result = RCmd(cip, rp, "PASS %s", cip->firewallPass);
} else if (cip->firewallType > kFirewallNotInUse) {
ReInitResponse(cip, rp);
result = RCmd(cip, rp, "PASS %s", cip->firewallPass);
} else {
goto unknown;
}
sentpass++;
break;
case 332: /* 332 Need account for login. */
case 532: /* 532 Need account for storing files. */
if ((cip->firewallType == kFirewallNotInUse) || (fwloggedin != 0)) {
ReInitResponse(cip, rp);
result = RCmd(cip, rp, "ACCT %s", cip->acct);
} else if (cip->firewallType == kFirewallUserAtSiteFwuPassFwp) {
ReInitResponse(cip, rp);
result = RCmd(cip, rp, "ACCT %s", cip->firewallPass);
} else {
/* ACCT not supported on firewall. */
goto unknown;
}
break;
case 530: /* Not logged in. */
result = (sentpass != 0) ? kErrBadRemoteUserOrPassword : kErrBadRemoteUser;
goto done;
case 501: /* Syntax error in parameters or arguments. */
case 503: /* Bad sequence of commands. */
case 550: /* Can't set guest privileges. */
goto done;
default:
unknown:
if (rp->msg.first == NULL) {
Error(cip, kDontPerror, "Lost connection during login.\n");
} else {
Error(cip, kDontPerror, "Unexpected response: %s\n",
rp->msg.first->line
);
}
goto done;
}
}
okay:
/* Do the application's connect message callback, if present. */
if (cip->onLoginMsgProc != 0)
(*cip->onLoginMsgProc)(cip, rp);
DoneWithResponse(cip, rp);
result = 0;
cip->loggedIn = 1;
/* Make a note of what our root directory is.
* This is often different from "/" when not
* logged in anonymously.
*/
if (cip->startingWorkingDirectory != NULL) {
free(cip->startingWorkingDirectory);
cip->startingWorkingDirectory = NULL;
}
if ((cip->doNotGetStartingWorkingDirectory == 0) &&
(FTPGetCWD(cip, cwd, sizeof(cwd)) == kNoErr))
{
cip->startingWorkingDirectory = StrDup(cwd);
}
/* When a new site is opened, ASCII mode is assumed (by protocol). */
cip->curTransferType = 'A';
PrintF(cip, "Logged in to %s as %s.\n", cip->host, cip->user);
/* Don't leave cleartext password in memory. */
if ((anonLogin == 0) && (cip->leavePass == 0))
(void) memset(cip->pass, '*', strlen(cip->pass));
if (result < 0)
cip->errNo = result;
return result;
done:
DoneWithResponse(cip, rp);
done2:
/* Don't leave cleartext password in memory. */
if ((anonLogin == 0) && (cip->leavePass == 0))
(void) memset(cip->pass, '*', strlen(cip->pass));
if (result < 0)
cip->errNo = result;
return result;
} /* FTPLoginHost */
static void
FTPExamineMlstFeatures(const FTPCIPtr cip, const char *features)
{
char buf[256], *feat;
int flags;
flags = 0;
STRNCPY(buf, features);
feat = strtok(buf, ";*");
while (feat != NULL) {
if (ISTRNEQ(feat, "OS.", 3))
feat += 3;
if (ISTREQ(feat, "type")) {
flags |= kMlsOptType;
} else if (ISTREQ(feat, "size")) {
flags |= kMlsOptSize;
} else if (ISTREQ(feat, "modify")) {
flags |= kMlsOptModify;
} else if (ISTREQ(feat, "UNIX.mode")) {
flags |= kMlsOptUNIXmode;
} else if (ISTREQ(feat, "UNIX.owner")) {
flags |= kMlsOptUNIXowner;
} else if (ISTREQ(feat, "UNIX.group")) {
flags |= kMlsOptUNIXgroup;
} else if (ISTREQ(feat, "perm")) {
flags |= kMlsOptPerm;
} else if (ISTREQ(feat, "UNIX.uid")) {
flags |= kMlsOptUNIXuid;
} else if (ISTREQ(feat, "UNIX.gid")) {
flags |= kMlsOptUNIXgid;
} else if (ISTREQ(feat, "UNIX.gid")) {
flags |= kMlsOptUnique;
}
feat = strtok(NULL, ";*");
}
cip->mlsFeatures = flags;
} /* FTPExamineMlstFeatures */
int
FTPQueryFeatures(const FTPCIPtr cip)
{
ResponsePtr rp;
int result;
LinePtr lp;
char *cp, *p;
if (cip == NULL)
return (kErrBadParameter);
if (strcmp(cip->magic, kLibraryMagic))
return (kErrBadMagic);
if (cip->serverType == kServerTypeNetWareFTP) {
/* NetWare 5.00 server freaks out when
* you give it a command it doesn't
* recognize, so cheat here and return.
*/
cip->hasPASV = kCommandAvailable;
cip->hasSIZE = kCommandNotAvailable;
cip->hasMDTM = kCommandNotAvailable;
cip->hasREST = kCommandNotAvailable;
cip->NLSTfileParamWorks = kCommandAvailable;
cip->hasUTIME = kCommandNotAvailable;
cip->hasCLNT = kCommandNotAvailable;
cip->hasMLST = kCommandNotAvailable;
cip->hasMLSD = kCommandNotAvailable;
return (kNoErr);
}
rp = InitResponse();
if (rp == NULL) {
cip->errNo = kErrMallocFailed;
result = cip->errNo;
} else {
rp->printMode = (kResponseNoPrint|kResponseNoSave);
result = RCmd(cip, rp, "FEAT");
if (result < kNoErr) {
DoneWithResponse(cip, rp);
return (result);
} else if (result != 2) {
/* We cheat here and pre-populate some
* fields when the server is wu-ftpd.
* This server is very common and we
* know it has always had these.
*/
if (cip->serverType == kServerTypeWuFTPd) {
cip->hasPASV = kCommandAvailable;
cip->hasSIZE = kCommandAvailable;
cip->hasMDTM = kCommandAvailable;
cip->hasREST = kCommandAvailable;
cip->NLSTfileParamWorks = kCommandAvailable;
} else if (cip->serverType == kServerTypeNcFTPd) {
cip->hasPASV = kCommandAvailable;
cip->hasSIZE = kCommandAvailable;
cip->hasMDTM = kCommandAvailable;
cip->hasREST = kCommandAvailable;
cip->NLSTfileParamWorks = kCommandAvailable;
}
/* Newer commands are only shown in FEAT,
* so we don't have to do the "try it,
* then save that it didn't work" thing.
*/
cip->hasMLST = kCommandNotAvailable;
cip->hasMLSD = kCommandNotAvailable;
} else {
cip->hasFEAT = kCommandAvailable;
for (lp = rp->msg.first; lp != NULL; lp = lp->next) {
/* If first character was not a space it is
* either:
*
* (a) The header line in the response;
* (b) The trailer line in the response;
* (c) A protocol violation.
*/
cp = lp->line;
if (*cp++ != ' ')
continue;
if (ISTRNCMP(cp, "PASV", 4) == 0) {
cip->hasPASV = kCommandAvailable;
} else if (ISTRNCMP(cp, "SIZE", 4) == 0) {
cip->hasSIZE = kCommandAvailable;
} else if (ISTRNCMP(cp, "MDTM", 4) == 0) {
cip->hasMDTM = kCommandAvailable;
} else if (ISTRNCMP(cp, "REST", 4) == 0) {
cip->hasREST = kCommandAvailable;
} else if (ISTRNCMP(cp, "UTIME", 5) == 0) {
cip->hasUTIME = kCommandAvailable;
} else if (ISTRNCMP(cp, "MLST", 4) == 0) {
cip->hasMLST = kCommandAvailable;
cip->hasMLSD = kCommandAvailable;
FTPExamineMlstFeatures(cip, cp + 5);
} else if (ISTRNCMP(cp, "CLNT", 4) == 0) {
cip->hasCLNT = kCommandAvailable;
} else if (ISTRNCMP(cp, "Compliance Level: ", 18) == 0) {
/* Probably only NcFTPd will ever implement this.
* But we use it internally to differentiate
* between different NcFTPd implementations of
* IETF extensions.
*/
cip->ietfCompatLevel = atoi(cp + 18);
}
}
}
ReInitResponse(cip, rp);
result = RCmd(cip, rp, "HELP SITE");
if (result == 2) {
for (lp = rp->msg.first; lp != NULL; lp = lp->next) {
cp = lp->line;
if (strstr(cp, "RETRBUFSIZE") != NULL)
cip->hasRETRBUFSIZE = kCommandAvailable;
if (strstr(cp, "RBUFSZ") != NULL)
cip->hasRBUFSZ = kCommandAvailable;
/* See if RBUFSIZ matches (but not STORBUFSIZE) */
if (
((p = strstr(cp, "RBUFSIZ")) != NULL) &&
(
(p == cp) ||
((p > cp) && (!isupper(p[-1])))
)
)
cip->hasRBUFSIZ = kCommandAvailable;
if (strstr(cp, "STORBUFSIZE") != NULL)
cip->hasSTORBUFSIZE = kCommandAvailable;
if (strstr(cp, "SBUFSIZ") != NULL)
cip->hasSBUFSIZ = kCommandAvailable;
if (strstr(cp, "SBUFSZ") != NULL)
cip->hasSBUFSZ = kCommandAvailable;
if (strstr(cp, "BUFSIZE") != NULL)
cip->hasBUFSIZE = kCommandAvailable;
}
}
DoneWithResponse(cip, rp);
}
return (kNoErr);
} /* FTPQueryFeatures */
int
FTPCloseHost(const FTPCIPtr cip)
{
ResponsePtr rp;
int result;
if (cip == NULL)
return (kErrBadParameter);
if (strcmp(cip->magic, kLibraryMagic))
return (kErrBadMagic);
/* Data connection shouldn't be open normally. */
if (cip->dataSocket != kClosedFileDescriptor)
FTPAbortDataTransfer(cip);
result = kNoErr;
if (cip->connected != 0) {
rp = InitResponse();
if (rp == NULL) {
cip->errNo = kErrMallocFailed;
result = cip->errNo;
} else {
rp->eofOkay = 1; /* We are expecting EOF after this cmd. */
cip->eofOkay = 1;
(void) RCmd(cip, rp, "QUIT");
DoneWithResponse(cip, rp);
}
}
CloseControlConnection(cip);
/* Dispose dynamic data structures, so you won't leak
* if you OpenHost with this again.
*/
FTPDeallocateHost(cip);
return (result);
} /* FTPCloseHost */
void
FTPShutdownHost(const FTPCIPtr cip)
{
#ifdef SIGPIPE
FTPSigProc osigpipe;
#endif
if (cip == NULL)
return;
if (strcmp(cip->magic, kLibraryMagic))
return;
#ifdef SIGPIPE
osigpipe = signal(SIGPIPE, (FTPSigProc) SIG_IGN);
#endif
/* Linger could cause close to block, so unset it. */
if (cip->dataSocket != kClosedFileDescriptor)
(void) SetLinger(cip, cip->dataSocket, 0);
CloseDataConnection(cip); /* Shouldn't be open normally. */
/* Linger should already be turned off for this. */
CloseControlConnection(cip);
FTPDeallocateHost(cip);
#ifdef SIGPIPE
(void) signal(SIGPIPE, (FTPSigProc) osigpipe);
#endif
} /* FTPShutdownHost */
void
URLCopyToken(char *dst, size_t dsize, const char *src, size_t howmuch)
{
char *dlim;
const char *slim;
unsigned int hc;
int c;
char h[4];
dlim = dst + dsize - 1; /* leave room for \0 */
slim = src + howmuch;
while (src < slim) {
c = *src++;
if (c == '\0')
break;
if (c == '%') {
/* hex representation */
if (src < slim + 2) {
h[0] = *src++;
h[1] = *src++;
h[2] = '\0';
hc = 0xeeff;
if ((sscanf(h, "%x", &hc) >= 0) && (hc != 0xeeff)) {
if (dst < dlim) {
*(unsigned char *)dst = (unsigned char) hc;
dst++;
}
}
} else {
break;
}
} else {
*dst++ = (char) c;
}
}
*dst = '\0';
} /* URLCopyToken */
int
FTPDecodeURL(
const FTPCIPtr cip, /* area pointed to may be modified */
char *const url, /* always modified */
LineListPtr cdlist, /* always modified */
char *const fn, /* always modified */
const size_t fnsize,
int *const xtype, /* optional; may be modified */
int *const wantnlst /* optional; always modified */
)
{
char *cp;
char *hstart, *hend;
char *h2start;
char *at1;
char portstr[32];
int port;
int sc;
char *lastslash;
char *parsestr;
char *tok;
char subdir[128];
char *semi;
InitLineList(cdlist);
*fn = '\0';
if (wantnlst != NULL)
*wantnlst = 0;
if (xtype != NULL)
*xtype = kTypeBinary;
cp = NULL; /* shut up warnings */
#ifdef HAVE_STRCASECMP
if (strncasecmp(url, "<URL:ftp://", 11) == 0) {
cp = url + strlen(url) - 1;
if (*cp != '>')
return (kMalformedURL); /* missing closing > */
*cp = '\0';
cp = url + 11;
} else if (strncasecmp(url, "ftp://", 6) == 0) {
cp = url + 6;
} else {
return (-1); /* not a RFC 1738 URL */
}
#else /* HAVE_STRCASECMP */
if (strncmp(url, "<URL:ftp://", 11) == 0) {
cp = url + strlen(url) - 1;
if (*cp != '>')
return (kMalformedURL); /* missing closing > */
*cp = '\0';
cp = url + 11;
} else if (strncmp(url, "ftp://", 6) == 0) {
cp = url + 6;
} else {
return (-1); /* not a RFC 1738 URL */
}
#endif /* HAVE_STRCASECMP */
/* //<user>:<password>@<host>:<port>/<url-path> */
at1 = NULL;
for (hstart = cp; ; cp++) {
if (*cp == '@') {
if (at1 == NULL)
at1 = cp;
else
return (kMalformedURL);
} else if ((*cp == '\0') || (*cp == '/')) {
hend = cp;
break;
}
}
sc = *hend;
*hend = '\0';
if (at1 == NULL) {
/* no user or password */
h2start = hstart;
} else {
*at1 = '\0';
cp = strchr(hstart, ':');
if (cp == NULL) {
/* whole thing is the user name then */
URLCopyToken(cip->user, sizeof(cip->user), hstart, (size_t) (at1 - hstart));
} else if (strchr(cp + 1, ':') != NULL) {
/* Too many colons */
return (kMalformedURL);
} else {
URLCopyToken(cip->user, sizeof(cip->user), hstart, (size_t) (cp - hstart));
URLCopyToken(cip->pass, sizeof(cip->pass), cp + 1, (size_t) (at1 - (cp + 1)));
}
*at1 = '@';
h2start = at1 + 1;
}
cp = strchr(h2start, ':');
if (cp == NULL) {
/* whole thing is the host then */
URLCopyToken(cip->host, sizeof(cip->host), h2start, (size_t) (hend - h2start));
} else if (strchr(cp + 1, ':') != NULL) {
/* Too many colons */
return (kMalformedURL);
} else {
URLCopyToken(cip->host, sizeof(cip->host), h2start, (size_t) (cp - h2start));
URLCopyToken(portstr, sizeof(portstr), cp + 1, (size_t) (hend - (cp + 1)));
port = atoi(portstr);
if (port > 0)
cip->port = port;
}
*hend = (char) sc;
if ((*hend == '\0') || ((*hend == '/') && (hend[1] == '\0'))) {
/* no path, okay */
return (0);
}
lastslash = strrchr(hend, '/');
if (lastslash == NULL) {
/* no path, okay */
return (0);
}
*lastslash = '\0';
if ((semi = strchr(lastslash + 1, ';')) != NULL) {
*semi++ = '\0';
#ifdef HAVE_STRCASECMP
if (strcasecmp(semi, "type=i") == 0) {
if (xtype != NULL)
*xtype = kTypeBinary;
} else if (strcasecmp(semi, "type=a") == 0) {
if (xtype != NULL)
*xtype = kTypeAscii;
} else if (strcasecmp(semi, "type=b") == 0) {
if (xtype != NULL)
*xtype = kTypeBinary;
} else if (strcasecmp(semi, "type=d") == 0) {
if (wantnlst != NULL) {
*wantnlst = 1;
if (xtype != NULL)
*xtype = kTypeAscii;
} else {
/* You didn't want these. */
return (kMalformedURL);
}
}
#else /* HAVE_STRCASECMP */
if (strcmp(semi, "type=i") == 0) {
if (xtype != NULL)
*xtype = kTypeBinary;
} else if (strcmp(semi, "type=a") == 0) {
if (xtype != NULL)
*xtype = kTypeAscii;
} else if (strcmp(semi, "type=b") == 0) {
if (xtype != NULL)
*xtype = kTypeBinary;
} else if (strcmp(semi, "type=d") == 0) {
if (wantnlst != NULL) {
*wantnlst = 1;
if (xtype != NULL)
*xtype = kTypeAscii;
} else {
/* You didn't want these. */
return (kMalformedURL);
}
}
#endif /* HAVE_STRCASECMP */
}
URLCopyToken(fn, fnsize, lastslash + 1, strlen(lastslash + 1));
for (parsestr = hend; (tok = strtok(parsestr, "/")) != NULL; parsestr = NULL) {
URLCopyToken(subdir, sizeof(subdir), tok, strlen(tok));
(void) AddLine(cdlist, subdir);
}
*lastslash = '/';
return (kNoErr);
} /* FTPDecodeURL */
int
FTPOpenHost(const FTPCIPtr cip)
{
int result;
time_t t0, t1;
int elapsed;
int dials;
if (cip == NULL)
return (kErrBadParameter);
if (strcmp(cip->magic, kLibraryMagic))
return (kErrBadMagic);
if (cip->host[0] == '\0') {
cip->errNo = kErrBadParameter;
return (kErrBadParameter);
}
for ( result = kErrConnectMiscErr, dials = 0;
cip->maxDials < 0 || dials < cip->maxDials;
dials++)
{
/* Allocate (or if the host was closed, reallocate)
* the transfer data buffer.
*/
result = FTPAllocateHost(cip);
if (result < 0)
return (result);
if (dials > 0)
PrintF(cip, "Retry Number: %d\n", dials);
if (cip->redialStatusProc != 0)
(*cip->redialStatusProc)(cip, kRedialStatusDialing, dials);
(void) time(&t0);
result = OpenControlConnection(cip, cip->host, cip->port);
(void) time(&t1);
if (result == kNoErr) {
/* We were hooked up successfully. */
PrintF(cip, "Connected to %s.\n", cip->host);
result = FTPLoginHost(cip);
if (result == kNoErr) {
(void) FTPQueryFeatures(cip);
break;
}
/* Close and try again. */
(void) FTPCloseHost(cip);
/* Originally we also stopped retyring if
* we got kErrBadRemoteUser and non-anonymous,
* but some FTP servers apparently do their
* max user check after the username is sent.
*/
if (result == kErrBadRemoteUserOrPassword /* || (result == kErrBadRemoteUser) */) {
if (strcmp(cip->user, "anonymous") != 0) {
/* Non-anonymous login was denied, and
* retrying is not going to help.
*/
break;
}
}
} else if ((result != kErrConnectRetryableErr) && (result != kErrConnectRefused) && (result != kErrRemoteHostClosedConnection)) {
/* Irrecoverable error, so don't bother redialing.
* The error message should have already been printed
* from OpenControlConnection().
*/
PrintF(cip, "Cannot recover from miscellaneous open error %d.\n", result);
return result;
}
/* Retryable error, wait and then redial. */
if (cip->redialDelay > 0) {
/* But don't sleep if this is the last loop. */
if ((cip->maxDials < 0) || (dials < (cip->maxDials - 1))) {
elapsed = (int) (t1 - t0);
if (elapsed < cip->redialDelay) {
PrintF(cip, "Sleeping %u seconds.\n",
(unsigned) cip->redialDelay - elapsed);
if (cip->redialStatusProc != 0)
(*cip->redialStatusProc)(cip, kRedialStatusSleeping, cip->redialDelay - elapsed);
(void) sleep((unsigned) cip->redialDelay - elapsed);
}
}
}
}
return (result);
} /* FTPOpenHost */
int
FTPOpenHostNoLogin(const FTPCIPtr cip)
{
int result;
time_t t0, t1;
int elapsed;
int dials;
if (cip == NULL)
return (kErrBadParameter);
if (strcmp(cip->magic, kLibraryMagic))
return (kErrBadMagic);
if (cip->host[0] == '\0') {
cip->errNo = kErrBadParameter;
return (kErrBadParameter);
}
for ( result = kErrConnectMiscErr, dials = 0;
cip->maxDials < 0 || dials < cip->maxDials;
dials++)
{
/* Allocate (or if the host was closed, reallocate)
* the transfer data buffer.
*/
result = FTPAllocateHost(cip);
if (result < 0)
return (result);
if (dials > 0)
PrintF(cip, "Retry Number: %d\n", dials);
if (cip->redialStatusProc != 0)
(*cip->redialStatusProc)(cip, kRedialStatusDialing, dials);
(void) time(&t0);
result = OpenControlConnection(cip, cip->host, cip->port);
(void) time(&t1);
if (result == kNoErr) {
/* We were hooked up successfully. */
PrintF(cip, "Connected to %s.\n", cip->host);
/* Not logging in... */
if (result == kNoErr)
break;
} else if ((result != kErrConnectRetryableErr) && (result != kErrConnectRefused) && (result != kErrRemoteHostClosedConnection)) {
/* Irrecoverable error, so don't bother redialing.
* The error message should have already been printed
* from OpenControlConnection().
*/
PrintF(cip, "Cannot recover from miscellaneous open error %d.\n", result);
return result;
}
/* Retryable error, wait and then redial. */
if (cip->redialDelay > 0) {
/* But don't sleep if this is the last loop. */
if ((cip->maxDials < 0) || (dials < (cip->maxDials - 1))) {
elapsed = (int) (t1 - t0);
if (elapsed < cip->redialDelay) {
PrintF(cip, "Sleeping %u seconds.\n",
(unsigned) cip->redialDelay - elapsed);
if (cip->redialStatusProc != 0)
(*cip->redialStatusProc)(cip, kRedialStatusSleeping, cip->redialDelay - elapsed);
(void) sleep((unsigned) cip->redialDelay - elapsed);
}
}
}
}
return (result);
} /* FTPOpenHostNoLogin */
int
FTPInitConnectionInfo(const FTPLIPtr lip, const FTPCIPtr cip, size_t bufSize)
{
size_t siz;
if ((lip == NULL) || (cip == NULL) || (bufSize == 0))
return (kErrBadParameter);
siz = sizeof(FTPConnectionInfo);
(void) memset(cip, 0, siz);
if (strcmp(lip->magic, kLibraryMagic))
return (kErrBadMagic);
cip->buf = NULL; /* denote that it needs to be allocated. */
cip->bufSize = bufSize;
cip->port = lip->defaultPort;
cip->firewallPort = lip->defaultPort;
cip->maxDials = kDefaultMaxDials;
cip->redialDelay = kDefaultRedialDelay;
cip->xferTimeout = kDefaultXferTimeout;
cip->connTimeout = kDefaultConnTimeout;
cip->ctrlTimeout = kDefaultCtrlTimeout;
cip->abortTimeout = kDefaultAbortTimeout;
cip->ctrlSocketR = kClosedFileDescriptor;
cip->ctrlSocketW = kClosedFileDescriptor;
cip->dataPortMode = kSendPortMode;
cip->dataSocket = kClosedFileDescriptor;
cip->lip = lip;
cip->hasPASV = kCommandAvailabilityUnknown;
cip->hasSIZE = kCommandAvailabilityUnknown;
cip->hasMDTM = kCommandAvailabilityUnknown;
cip->hasREST = kCommandAvailabilityUnknown;
cip->hasNLST_d = kCommandAvailabilityUnknown;
cip->hasUTIME = kCommandAvailabilityUnknown;
cip->hasFEAT = kCommandAvailabilityUnknown;
cip->hasMLSD = kCommandAvailabilityUnknown;
cip->hasMLST = kCommandAvailabilityUnknown;
cip->hasCLNT = kCommandAvailabilityUnknown;
cip->hasRETRBUFSIZE = kCommandAvailabilityUnknown;
cip->hasRBUFSIZ = kCommandAvailabilityUnknown;
cip->hasRBUFSZ = kCommandAvailabilityUnknown;
cip->hasSTORBUFSIZE = kCommandAvailabilityUnknown;
cip->hasSBUFSIZ = kCommandAvailabilityUnknown;
cip->hasSBUFSZ = kCommandAvailabilityUnknown;
cip->STATfileParamWorks = kCommandAvailabilityUnknown;
cip->NLSTfileParamWorks = kCommandAvailabilityUnknown;
cip->firewallType = kFirewallNotInUse;
cip->startingWorkingDirectory = NULL;
(void) STRNCPY(cip->magic, kLibraryMagic);
(void) STRNCPY(cip->user, "anonymous");
return (kNoErr);
} /* FTPInitConnectionInfo */
int
FTPRebuildConnectionInfo(const FTPLIPtr lip, const FTPCIPtr cip)
{
char *buf;
cip->lip = lip;
cip->debugLog = NULL;
cip->errLog = NULL;
cip->debugLogProc = NULL;
cip->errLogProc = NULL;
cip->buf = NULL;
cip->cin = NULL;
cip->cout = NULL;
cip->errNo = 0;
cip->progress = NULL;
cip->rname = NULL;
cip->lname = NULL;
cip->onConnectMsgProc = NULL;
cip->redialStatusProc = NULL;
cip->printResponseProc = NULL;
cip->onLoginMsgProc = NULL;
cip->passphraseProc = NULL;
cip->startingWorkingDirectory = NULL;
cip->asciiFilenameExtensions = NULL;
(void) memset(&cip->lastFTPCmdResultLL, 0, sizeof(LineList));
/* Allocate a new buffer. */
buf = (char *) calloc((size_t) 1, cip->bufSize);
if (buf == NULL) {
cip->errNo = kErrMallocFailed;
return (kErrMallocFailed);
}
cip->buf = buf;
/* Reattach the FILE pointers for use with the Std I/O library
* routines.
*/
if ((cip->cin = fdopen(cip->ctrlSocketR, "r")) == NULL) {
cip->errNo = kErrFdopenR;
cip->ctrlSocketR = kClosedFileDescriptor;
cip->ctrlSocketW = kClosedFileDescriptor;
return (kErrFdopenR);
}
if ((cip->cout = fdopen(cip->ctrlSocketW, "w")) == NULL) {
CloseFile(&cip->cin);
cip->errNo = kErrFdopenW;
cip->ctrlSocketR = kClosedFileDescriptor;
cip->ctrlSocketW = kClosedFileDescriptor;
return (kErrFdopenW);
}
#if USE_SIO
if (InitSReadlineInfo(&cip->ctrlSrl, cip->ctrlSocketR, cip->srlBuf, sizeof(cip->srlBuf), (int) cip->ctrlTimeout, 1) < 0) {
cip->errNo = kErrFdopenW;
CloseFile(&cip->cin);
cip->errNo = kErrFdopenW;
cip->ctrlSocketR = kClosedFileDescriptor;
cip->ctrlSocketW = kClosedFileDescriptor;
return (kErrFdopenW);
}
#endif
return (kNoErr);
} /* FTPRebuildConnectionInfo */
int
FTPInitLibrary(const FTPLIPtr lip)
{
struct servent *ftp;
if (lip == NULL)
return (kErrBadParameter);
(void) memset(lip, 0, sizeof(FTPLibraryInfo));
if ((ftp = getservbyname("ftp", "tcp")) == NULL)
lip->defaultPort = (unsigned int) kDefaultFTPPort;
else
lip->defaultPort = (unsigned int) ntohs(ftp->s_port);
lip->init = 1;
(void) STRNCPY(lip->magic, kLibraryMagic);
/* We'll initialize the defaultAnonPassword field
* later when we try the first anon ftp connection.
*/
#ifdef HAVE_LIBSOCKS
SOCKSinit("libncftp");
lip->socksInit = 1;
#endif
return (kNoErr);
} /* FTPInitLibrary */
/* Open.c */
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