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ftp.c
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ftp.c
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/*
* University of Illinois/NCSA Open Source License
*
* Copyright © 2003-2012 NCSA. All rights reserved.
*
* Developed by:
*
* Storage Enabling Technologies (SET)
*
* Nation Center for Supercomputing Applications (NCSA)
*
* http://dims.ncsa.uiuc.edu/set/uberftp
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the .Software.),
* to deal with the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* + Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimers.
*
* + Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimers in the
* documentation and/or other materials provided with the distribution.
*
* + Neither the names of SET, NCSA
* nor the names of its contributors may be used to endorse or promote
* products derived from this Software without specific prior written
* permission.
*
* THE SOFTWARE IS PROVIDED .AS IS., WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS WITH THE SOFTWARE.
*/
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fnmatch.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#include <time.h>
#include <arpa/inet.h>
#include "linterface.h"
#include "settings.h"
#include "errcode.h"
#include "network.h"
#include "output.h"
#include "misc.h"
#include "ftp.h"
#include "gsi.h"
#include "ftp_eb.h"
#include "ftp_s.h"
#include "ftp_a.h"
#ifdef DMALLOC
#include "dmalloc.h"
#endif /* DMALLOC */
#define F_CODE_CONT(x) ((x) < 200)
#define F_CODE_COMP(x) ((x) >= 200)
#define F_CODE_SUCC(x) ((x) >= 200 && (x) < 299)
#define F_CODE_ERR(x) ((x) >= 400)
#define F_CODE_TRANS_ERR(x) ((x) >= 400 && (x) <= 499)
#define F_CODE_FINAL_ERR(x) ((x) >= 500 && (x) <= 599)
#define F_CODE_INTR(x) ((x) >= 300 && (x) <= 399)
#define F_CODE_UNKNOWN(x) (((x) >= 500 && (x) <= 509) || (x) == 202)
typedef struct ftp_handle {
int port;
char * host;
char * rhost;
char * user;
char * pass;
struct {
nh_t * nh;
gh_t * gh;
int eof;
char * buf;
size_t len;
size_t cnt;
} cc; /* Control channel. */
dch_t dcs; /* Data channels. */
/* Supported Features */
int hasChgrp;
int hasDcau;
int hasSiteSum;
int hasParallel;
int hasMlst;
int hasEsto;
int hasEret;
int hasSiteSetfam;
int hasSiteSetCos;
int hasPasv;
char * pasvCmd;
int hasAllo;
int hasSize;
int hasSbuf;
int hasStage;
int hasSiteStage;
int hasMFMT;
int hasSiteUtime;
int hasSiteLscos;
int hasSiteLsfam;
int hasSiteHln;
int hasSiteHardLinkToFrom;
/* Mlsx features */
mf_t mf;
/* Transfer setup */
int stream; /* 0 stream, 1 eb */
int ascii; /* 0 binary, 1 ascii */
/* Connection information */
struct sockaddr * sinp;
int scnt;
/* Flag to indicate that we are expecting a response. */
int rsp;
char * ocwd; /* Previous working directory. */
char * cwd; /* Current working directory. */
time_t keepalive;
} fh_t;
static errcode_t
_f_send_cmd(fh_t * fh, char * cmd);
static errcode_t
_f_prep_dc(fh_t * fh,
fh_t * ofh,
int stream,
int binary,
int retrieve);
static errcode_t
_f_wait_resp(fh_t * fh1, fh_t * fth2);
static errcode_t
_f_poll_resp(fh_t * fh, int * code, char ** resp);
static errcode_t
_f_push_resp(fh_t * fh, char * resp);
static errcode_t
_f_peak_resp(fh_t * fh, int * code);
static errcode_t
_f_get_final_resp(fh_t * fh, int * code, char ** resp);
static errcode_t
_f_get_resp(fh_t * fh, int * code, char ** resp);
static errcode_t
_f_setup_tcp(fh_t * fh, fh_t * ofh);
static errcode_t
_f_setup_mode(fh_t * fh, fh_t * ofh, int stream);
static errcode_t
_f_setup_dcau(fh_t * fh, fh_t * ofh);
static errcode_t
_f_setup_pbsz(fh_t * fh, fh_t * ofh);
static errcode_t
_f_setup_prot(fh_t * fh, fh_t * ofh);
static errcode_t
_f_setup_type(fh_t * fh, fh_t * ofh, int binary);
static errcode_t
_f_setup_dci(fh_t * fh, fh_t * ofh);
static errcode_t
_f_setup_spor(fh_t * fh, fh_t * ofh);
static errcode_t
_f_setup_spas(fh_t * fh, fh_t * ofh);
static errcode_t
_f_setup_port(fh_t * fh, fh_t * ofh);
static errcode_t
_f_setup_pasv(fh_t * fh, fh_t * ofh, int retrieve);
static errcode_t
_f_setup_conntype(fh_t * fh, fh_t * ofh, int retrieve);
static int
_f_parse_addrs(
fh_t * fh, char * str,
struct sockaddr_storage ** sinp);
static char *
_f_rfc2428_extaddr(struct sockaddr *sinp);
static void
_f_mlsx(char * str, ml_t * ml);
static errcode_t
_f_keepalive(fh_t * fh);
static void
_f_destroy_pd(pd_t * pd);
static errcode_t
_f_connect(fh_t * fh, char ** srvrmsg);
static errcode_t
_f_reconnect(fh_t * fh);
static errcode_t
_f_chdir(fh_t * fh, char * path);
static errcode_t
_f_readdir_mlsd(pd_t * pd, char * path, ml_t *** mlp, char * token);
static errcode_t
_f_readdir_nlst(pd_t * pd, char * path, ml_t *** mlp, char * token);
static int
_f_ftp_code_unknown(char * FtpResponse)
{
if (strcmp(FtpResponse, "500 Command not supported.\r\n") == 0)
return 1;
if (strcmp(FtpResponse, "500 Invalid command.\r\n") == 0)
return 1;
return 0;
}
static errcode_t
ftp_connect(pd_t * pd,
char * host,
int port,
char * user,
char * pass,
char ** srvrmsg)
{
errcode_t ec = EC_SUCCESS;
char * resp = NULL;
char * cptr = NULL;
char * eor = NULL;
char * eol = NULL;
fh_t * fh = NULL;
int code = 0;
/* Check for a current connection. */
if (pd->ftppriv)
return ec_create(EC_GSI_SUCCESS,
EC_GSI_SUCCESS,
"Already connected.");
/* Set us up the handle. */
pd->ftppriv = fh = (fh_t *) malloc(sizeof(fh_t));
memset(fh, 0, sizeof(fh_t));
fh->host = Strdup(host);
fh->user = Strdup(user);
fh->pass = Strdup(pass);
fh->port = port;
fh->rsp = 1; /* MOTD */
ec = _f_connect(fh, srvrmsg);
if (ec)
goto cleanup;
/* Set the default features. */
fh->hasChgrp = 1;
fh->hasSiteSetfam = 1;
fh->hasSiteSetCos = 1;
fh->hasSiteSum = 1;
fh->hasPasv = 1;
fh->pasvCmd = "EPSV";
fh->hasAllo = 1;
fh->hasSize = 1;
fh->hasSbuf = 1;
fh->hasStage = 1;
fh->hasSiteStage = 1;
fh->hasMFMT = 1;
fh->hasSiteUtime = 1;
fh->hasSiteLscos = 1;
fh->hasSiteLsfam = 1;
fh->hasSiteHln = 1;
fh->hasSiteHardLinkToFrom = 1;
/* Now grab the feature set, if available. */
ec = _f_send_cmd(fh, "FEAT");
if (ec != EC_SUCCESS)
goto cleanup;
ec = _f_get_final_resp(fh, &code, &resp);
if (ec != EC_SUCCESS || F_CODE_ERR(code) || !resp)
goto cleanup;
cptr = resp;
if (strstr(cptr, "\r\n DCAU\r\n"))
fh->hasDcau = 1;
if (strstr(cptr, "\r\n ESTO\r\n"))
fh->hasEsto = 1;
if (strstr(cptr, "\r\n ERET\r\n"))
fh->hasEret = 1;
if (strstr(cptr, "\r\n PARALLEL\r\n"))
fh->hasParallel = 1;
if ((cptr = strstr(cptr, "\r\n MLST ")) != NULL)
{
fh->hasMlst = 1;
cptr += 8;
eol = strstr(cptr, "\r\n");
if (eol)
*eol = '\0';
while (cptr && *cptr)
{
if (strncasecmp("type", cptr, 4) == 0)
fh->mf.Type = 1;
else if (strncasecmp("size", cptr, 4) == 0)
fh->mf.Size = 1;
else if (strncasecmp("modify", cptr, 6) == 0)
fh->mf.Modify = 1;
else if (strncasecmp("perm", cptr, 4) == 0)
fh->mf.Perm = 1;
else if (strncasecmp("charset", cptr, 4) == 0)
fh->mf.Charset = 1;
else if (strncasecmp("UNIX.mode", cptr, 9) == 0)
fh->mf.UNIX_mode = 1;
else if (strncasecmp("UNIX.owner", cptr, 10) == 0)
fh->mf.UNIX_owner = 1;
else if (strncasecmp("UNIX.group", cptr, 10) == 0)
fh->mf.UNIX_group = 1;
else if (strncasecmp("unique", cptr, 6) == 0)
fh->mf.Unique = 1;
else if (strncasecmp("UNIX.slink", cptr, 10) == 0)
fh->mf.UNIX_slink = 1;
else if (strncasecmp("X.family", cptr, 8) == 0)
fh->mf.X_family = 1;
else if (strncasecmp("X.archive", cptr, 9) == 0)
fh->mf.X_archive = 1;
eor = strchr(cptr, ';');
if (!eor)
eor = cptr + strlen(cptr) - 1;
cptr = eor + 1;
}
if (eol)
*eol = '\r';
}
cleanup:
FREE(resp);
if (ec != EC_SUCCESS)
_f_destroy_pd(pd);
return ec;
}
static int
ftp_connected(pd_t * pd)
{
return 1;
}
static errcode_t
ftp_disconnect(pd_t * pd,
char ** msg)
{
int code = 0;
fh_t * fh = (fh_t*)pd->ftppriv;
errcode_t ec = EC_SUCCESS;
*msg = NULL;
if (net_connected(fh->cc.nh))
{
ec = _f_send_cmd(fh, "QUIT");
if (ec != EC_SUCCESS)
goto finish;
ec = _f_get_final_resp(fh, &code, msg);
if (ec != EC_SUCCESS)
goto finish;
}
finish:
net_close(fh->cc.nh);
_f_destroy_pd(pd);
return ec;
}
static errcode_t
ftp_retr(pd_t * pd,
pd_t * opd,
char * file,
globus_off_t off,
globus_off_t len)
{
int code = 0;
fh_t * fh = (fh_t *) pd->ftppriv;
fh_t * ofh = NULL;
char * cmd = NULL;
char * resp = NULL;
errcode_t ec = EC_SUCCESS;
/* Reconnect */
ec = _f_reconnect(fh);
if (ec)
return ec;
if (opd)
ofh = (fh_t *) opd->ftppriv;
/* Store to parital offset for adjusting transfer offsets later. */
fh->dcs.partial_off = off;
if (off == (globus_off_t)-1)
fh->dcs.partial_off = 0;
if (len != -1 && !fh->hasEret)
return ec_create(EC_GSI_SUCCESS,
EC_GSI_SUCCESS,
"Remote service does not support partial retrieves");
ec = _f_prep_dc(fh,
ofh,
0,
len == -1 ? 0 : 1, /* Force binary mode. */
1);
if (ec)
return ec;
if (!fh->stream)
{
cmd = Sprintf(NULL,
"OPTS RETR Parallelism=%d,%d,%d;",
s_parallel(),
s_parallel(),
s_parallel());
ec = _f_send_cmd(fh, cmd);
FREE(cmd);
if (ec)
return ec;
ec = _f_get_final_resp(fh, &code, &resp);
if (ec)
return ec;
if (!F_CODE_SUCC(code))
ec = ec_create(EC_GSI_SUCCESS,
EC_GSI_SUCCESS,
"Failed to setup desired parallelism:\n%s",
resp);
FREE(resp);
if (ec)
return ec;
}
if (off == (globus_off_t)-1)
cmd = Sprintf(cmd, "RETR %s", file);
else
cmd = Sprintf(
cmd,
"ERET P %" GLOBUS_OFF_T_FORMAT " %" GLOBUS_OFF_T_FORMAT " %s",
off,
len,
file);
ec = _f_send_cmd(fh, cmd);
FREE(cmd);
fh->keepalive = time(NULL);
return ec;
}
static errcode_t
ftp_stor(pd_t * pd,
pd_t * opd,
char * file,
int unique,
globus_off_t off,
globus_off_t len)
{
int code = 0;
fh_t * fh = (fh_t *) pd->ftppriv;
fh_t * ofh = NULL;
char * cmd = NULL;
char * resp = NULL;
errcode_t ec = EC_SUCCESS;
/* Reconnect */
ec = _f_reconnect(fh);
if (ec)
return ec;
if (opd)
ofh = (fh_t *) opd->ftppriv;
/* Store to parital offset for adjusting transfer offsets later. */
fh->dcs.partial_off = off;
if (off == (globus_off_t)-1)
fh->dcs.partial_off = 0;
if (off != (globus_off_t)-1 && !fh->hasEret)
return ec_create(EC_GSI_SUCCESS,
EC_GSI_SUCCESS,
"Remote service does not support partial stores");
/* Send allo */
if (fh->hasAllo && len != -1)
{
cmd = Sprintf(NULL, "ALLO %" GLOBUS_OFF_T_FORMAT, len);
ec = _f_send_cmd(fh, cmd);
FREE(cmd);
if (ec)
return ec;
ec = _f_get_final_resp(fh, &code, &resp);
if (ec)
return ec;
if (F_CODE_UNKNOWN(code))
fh->hasAllo = 0;
else if (!F_CODE_SUCC(code))
ec = ec_create(EC_GSI_SUCCESS,
EC_GSI_SUCCESS,
"Failed to send allo:\n%s",
resp);
FREE(resp);
if (ec)
return ec;
}
/* Set family. */
if (fh->hasSiteSetfam)
{
/* Construct the command */
cmd = Sprintf(NULL, "SITE SETFAM %s", s_family() ? s_family() : "DEFAULT");
/* Send the command */
ec = _f_send_cmd(fh, cmd);
/* Release the command before we return an error. */
FREE(cmd);
/* Check error status. */
if (ec)
return ec;
/* Get the response. */
ec = _f_get_final_resp(fh, &code, &resp);
if (ec)
return ec;
/* If the server didn't recognize the command... */
if (F_CODE_UNKNOWN(code))
{
fh->hasSiteSetfam = 0;
/* Free the response. */
FREE(resp);
} else if (!F_CODE_SUCC(code)) /* If an error of some sort occurred... */
{
/* Create the error code. */
ec = ec_create(EC_GSI_SUCCESS,
EC_GSI_SUCCESS,
"Failed to set the desired family:\n%s",
resp);
/* Free the response. */
FREE(resp);
/* Return the error. */
return ec;
} else /* Success! */
{
/* Free the response. */
FREE(resp);
}
}
/* Set class of service. */
if (fh->hasSiteSetCos)
{
cmd = Sprintf(NULL, "SITE SETCOS %s", s_cos() ? s_cos() : "DEFAULT");
/* Send the command */
ec = _f_send_cmd(fh, cmd);
/* Release the command before we return an error. */
FREE(cmd);
/* Check error status. */
if (ec)
return ec;
/* Get the response. */
ec = _f_get_final_resp(fh, &code, &resp);
if (ec)
return ec;
/* If the server didn't recognize the command... */
if (F_CODE_UNKNOWN(code))
{
fh->hasSiteSetCos = 0;
/* Free the response. */
FREE(resp);
}
/* If an error of some sort occurred... */
else if (!F_CODE_SUCC(code))
{
/* Create the error code. */
ec = ec_create(EC_GSI_SUCCESS,
EC_GSI_SUCCESS,
"Failed to set the desired COS:\n%s",
resp);
/* Free the response. */
FREE(resp);
/* Return the error. */
return ec;
}
/*
* Success!
*/
/* Free the response. */
FREE(resp);
}
/* Prepare the data channel. */
ec = _f_prep_dc(fh,
ofh,
0,
len == -1 ? 0 : 1, /* Force binary mode. */
0);
if (ec)
return ec;
if (off == (globus_off_t)-1 && unique)
cmd = Sprintf(cmd, "STOU %s", file);
else if (off == (globus_off_t)-1)
cmd = Sprintf(cmd, "STOR %s", file);
else
cmd = Sprintf(
cmd,
"ESTO A %" GLOBUS_OFF_T_FORMAT " %s",
off,
file);
ec = _f_send_cmd(fh, cmd);
FREE(cmd);
fh->keepalive = time(NULL);
return ec;
}
static errcode_t
ftp_read(pd_t * pd,
pd_t * opd, /* The other side's private data. */
char ** buf,
globus_off_t * off,
size_t * len,
int * eof)
{
int code = 0;
int ready = 0;
fh_t * fh = (fh_t *) pd->ftppriv;
fh_t * ofh = NULL;
char * resp = NULL;
errcode_t ec = EC_SUCCESS;
*buf = NULL;
*len = 0;
*eof = 0;
/* Check for a third-party transfer. */
if (opd && opd->ftppriv)
{
ofh = (fh_t *) opd->ftppriv;
/* Wait for someone to be ready. */
ec = _f_wait_resp(fh, ofh);
if (ec != EC_SUCCESS)
return ec;
}
do {
ec = _f_keepalive(fh);
if (ec)
return ec;
/* Check the control channel for messages. */
ec = _f_poll_resp(fh, &code, &resp);
if (ec)
return ec;
if (F_CODE_ERR(code))
{
ec = ec_create(EC_GSI_SUCCESS,
EC_GSI_SUCCESS,
"%s",
resp);
if (F_CODE_TRANS_ERR(code))
ec_set_flag(ec, EC_FLAG_CAN_RETRY);
FREE(resp);
return ec;
}
FREE(resp);
if (!fh->dcs.dci.read)
{
if (F_CODE_SUCC(code))
*eof = 1;
return ec;
}
} while (!(ec = fh->dcs.dci.read_ready(&fh->dcs, &ready)) && !ready);
/* Bail on error. */
if (ec)
return ec;
return fh->dcs.dci.read(&fh->dcs, buf, off, len, eof);
}
static errcode_t
ftp_write(pd_t * pd,
pd_t * opd, /* The other side's private data. */
char * buf,
globus_off_t off,
size_t len,
int eof)
{
int code = 0;
int ready = 0;
fh_t * fh = (fh_t *) pd->ftppriv;
fh_t * ofh = NULL;
char * resp = NULL;
errcode_t ec = EC_SUCCESS;
/* Check for a third-party transfer. */
if (opd && opd->ftppriv)
{
ofh = (fh_t *) opd->ftppriv;
/* Wait for someone to be ready. */
ec = _f_wait_resp(fh, ofh);
if (ec != EC_SUCCESS)
return ec;
}
do {
ec = _f_keepalive(fh);
if (ec)
{
FREE(buf);
return ec;
}
/* Check the control channel for messages. */
ec = _f_poll_resp(fh, &code, &resp);
if (ec != EC_SUCCESS)
{
FREE(buf);
return ec;
}
if (F_CODE_ERR(code))
{
ec = ec_create(EC_GSI_SUCCESS,
EC_GSI_SUCCESS,
"%s",
resp);
if (F_CODE_TRANS_ERR(code))
ec_set_flag(ec, EC_FLAG_CAN_RETRY);
FREE(resp);
FREE(buf);
return ec;
}
FREE(resp);
if (!fh->dcs.dci.write)
return ec;
} while (!(ec = fh->dcs.dci.write_ready(&fh->dcs, &ready)) && !ready);
/* Bail on error. */
if (ec)
return ec;
return fh->dcs.dci.write(&fh->dcs, buf, off, len, eof);
}
static errcode_t
ftp_close(pd_t * pd)
{
fh_t * fh = (fh_t *) pd->ftppriv;
errcode_t ec = EC_SUCCESS;
int code = 0;
int retcode = 0;
char * resp = NULL;
char * retresp = NULL;
if (fh->sinp)
{
/* XXX 3rd party stuff */
}
if (fh->dcs.dci.close)
fh->dcs.dci.close(&fh->dcs);
FREE(fh->sinp);
fh->sinp = NULL;
if (net_connected(fh->cc.nh))
{
ec = _f_get_final_resp(fh, &retcode, &retresp);
if (ec == EC_SUCCESS)
{
/* Soak up the keepalive NOOP responses. */
while ((ec = _f_get_final_resp(fh, &code, &resp)) == EC_SUCCESS)
{
if (!code)
break;
FREE(resp);
}
}
if (ec == EC_SUCCESS && F_CODE_ERR(retcode))
{
ec = ec_create(EC_GSI_SUCCESS,
EC_GSI_SUCCESS,
"%s",
retresp);
if (F_CODE_TRANS_ERR(retcode))
ec_set_flag(ec, EC_FLAG_CAN_RETRY);
}
FREE(retresp);
}
fh->keepalive = 0;
memset(&fh->dcs.dci, 0, sizeof(dci_t));
return ec;
}
static errcode_t
ftp_list(pd_t * pd, char * path)
{
fh_t * fh = (fh_t *) pd->ftppriv;
char * cmd = NULL;
errcode_t ec = EC_SUCCESS;
/* Reconnect */
ec = _f_reconnect(fh);
if (ec)
return ec;
ec = _f_prep_dc(fh, NULL, 1, 1, 1);
if (ec)
return ec;
cmd = Sprintf(cmd, "LIST%s%s", path ? " ": "", path ? path : "");
ec = _f_send_cmd(fh, cmd);
FREE(cmd);
fh->keepalive = time(NULL);
return ec;
}
static errcode_t
ftp_pwd(pd_t * pd, char ** path)
{
int code = 0;
fh_t * fh = (fh_t *) pd->ftppriv;
char * resp = NULL;
errcode_t ec = EC_SUCCESS;
*path = NULL;
/* Reconnect */
ec = _f_reconnect(fh);
if (ec)
return ec;
ec = _f_send_cmd(fh, "PWD");
if (ec != EC_SUCCESS)
goto cleanup;
ec = _f_get_final_resp(fh, &code, &resp);
if (ec != EC_SUCCESS)
goto cleanup;
if (F_CODE_INTR(code))
ec = ec_create(EC_GSI_SUCCESS,
EC_GSI_SUCCESS,
"Unexpected response to pwd: %s",
resp);
if (F_CODE_ERR(code))
{
ec = ec_create(EC_GSI_SUCCESS,
EC_GSI_SUCCESS,
"%s",
resp);
if (F_CODE_TRANS_ERR(code))
ec_set_flag(ec, EC_FLAG_CAN_RETRY);
}
if (code == 257)
*path = DupQuotedString(resp);
cleanup:
FREE(resp);
return ec;
}
static errcode_t
ftp_chdir(pd_t * pd, char * path)
{
char * cmd = NULL;
char * resp = NULL;
fh_t * fh = (fh_t *) pd->ftppriv;
errcode_t ec = EC_SUCCESS;
/* Reconnect */
ec = _f_reconnect(fh);
if (ec)
return ec;
if (path && strcmp(path, "-") == 0)
{
if (!fh->ocwd)
return ec_create(EC_GSI_SUCCESS,
EC_GSI_SUCCESS,
"OLDPWD not set.");
path = fh->ocwd;
}
if (!fh->cwd)
ec = ftp_pwd(pd, &fh->cwd);
if (ec)
return ec;
ec = _f_chdir(fh, path);
if (!ec)
{
FREE(fh->ocwd);
fh->ocwd = fh->cwd;
/* Failure here could break operations after reconnect. */
ec = ftp_pwd(pd, &fh->cwd);
}
FREE(cmd);
FREE(resp);
return ec;
}
static errcode_t
ftp_chgrp(pd_t * pd, char * group, char * path)
{
int code = 0;
char * cmd = NULL;
char * resp = NULL;
fh_t * fh = (fh_t *) pd->ftppriv;
errcode_t ec = EC_SUCCESS;
/* Reconnect */
ec = _f_reconnect(fh);
if (ec)
return ec;
if (fh->hasChgrp)