1998-11-05 19:48:17 +00:00
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/*-
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* Copyright (c) 1998 Dag-Erling Co<EFBFBD>dan Sm<EFBFBD>rgrav
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer
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* in this position and unchanged.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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2001-09-30 21:36:09 +00:00
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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1998-12-16 10:24:55 +00:00
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#include <sys/param.h>
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1998-11-05 19:48:17 +00:00
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#include <sys/socket.h>
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2000-01-07 12:58:40 +00:00
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#include <sys/time.h>
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2000-07-11 23:50:08 +00:00
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#include <sys/uio.h>
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1998-11-05 19:48:17 +00:00
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#include <netinet/in.h>
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#include <errno.h>
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#include <netdb.h>
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2000-05-25 16:24:31 +00:00
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#include <stdarg.h>
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1998-12-16 10:24:55 +00:00
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#include <stdlib.h>
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#include <stdio.h>
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1998-11-05 19:48:17 +00:00
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#include <string.h>
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#include <unistd.h>
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#include "fetch.h"
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#include "common.h"
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|
Second of a series of cleanups to libfetch.
This commit introduces the following features:
a) the fetchStat*() functions, which return meta-information for a
document, such as size, modification time, etc.
b) the use of the com_err(3) facilities to report errors.
It also fixes a bunch of style bugs and a few logic bugs and somewhat
improves the man page.
Changed files, in alphabetical order:
Makefile:
Don't generate macros in {ftp,http}err.c.
Generate category fields for the error message lists.
Compile the error table.
Install fetch_err.h along with fetch.h.
common.c:
Remove the _netdb_errstring() macro, and add FETCH_ERR_NETDB to the
error code in the _netdb_seterr() macro.
Add categories to the _netdb_errlist table.
Report errors through the Common Error library.
common.h:
Add the DEBUG macros.
Add prototype for fetchConnect().
Remove the prototype for _fetch_errstring(), which is local to common.c
Add a categroy field to struct fetcherr, and define constants for
error categories.
Define macros for _{url,netdb,ftp,http}_seterr().
errors.et: (new file)
List error categories.
fetch.3:
Document the fetchStat*() functions.
Move the "unimplemented functionality" comments from NOTES to BUGS.
Document that applications which use libfetch must also use
libcom_err, and list existing error codes.
Undocument fetchLastErr{Code,String}.
Remove the (empty) DIAGNOSTICS section.
Mention Eugene Skepner in the AUTHORS section.
fetch.c:
Move the DEBUG macros to common.c
Add fetchStat() and fetchStatURL().
Generate error messages for URL parser errors, and fix a minor bug
in the parser.
Use 'struct url' instead of 'url_t'.
Remove fetchLastErr{Code,String}.
fetch.h:
Use 'struct url' instead of 'url_t', and remove the typedef.
Define struct url_stat (used by fetchStat()).
Add prototypes for fetchStat*().
Remove the declarations for fetchLastErr{Code,String}.
Include fetch_err.h.
fetch_err.et: (new file)
Error table for libfetch.
file.c:
Add fetchStatFile().
Use 'struct url' instead of 'url_t'.
ftp.c:
Add fetchStatFTP().
Use 'struct url' instead of 'url_t'.
Don't use fetchLastErrCode.
ftp.errors:
Add categories to all error messages.
http.c:
Add fetchStatHTTP().
Use 'struct url' instead of 'url_t'.
Don't use fetchLastErr{Code,Text}.
http.errors:
Add categories to all error messages.
Prompted by: jkh and Eugene Skepner
Numerous sugestions from: Garett Wollman and Eugene Skepner
1998-11-06 22:14:08 +00:00
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1998-11-05 19:48:17 +00:00
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/*** Local data **************************************************************/
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/*
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* Error messages for resolver errors
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*/
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static struct fetcherr _netdb_errlist[] = {
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2002-02-05 22:13:51 +00:00
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{ EAI_NODATA, FETCH_RESOLV, "Host not found" },
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{ EAI_AGAIN, FETCH_TEMP, "Transient resolver failure" },
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{ EAI_FAIL, FETCH_RESOLV, "Non-recoverable resolver failure" },
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{ EAI_NONAME, FETCH_RESOLV, "No address record" },
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{ -1, FETCH_UNKNOWN, "Unknown resolver error" }
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1998-11-05 19:48:17 +00:00
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};
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2000-07-11 23:50:08 +00:00
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/* End-of-Line */
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2001-04-24 00:06:21 +00:00
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static const char ENDL[2] = "\r\n";
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2000-07-11 23:50:08 +00:00
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1998-11-05 19:48:17 +00:00
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/*** Error-reporting functions ***********************************************/
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/*
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* Map error code to string
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*/
|
2000-05-25 16:24:31 +00:00
|
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|
|
static struct fetcherr *
|
Second of a series of cleanups to libfetch.
This commit introduces the following features:
a) the fetchStat*() functions, which return meta-information for a
document, such as size, modification time, etc.
b) the use of the com_err(3) facilities to report errors.
It also fixes a bunch of style bugs and a few logic bugs and somewhat
improves the man page.
Changed files, in alphabetical order:
Makefile:
Don't generate macros in {ftp,http}err.c.
Generate category fields for the error message lists.
Compile the error table.
Install fetch_err.h along with fetch.h.
common.c:
Remove the _netdb_errstring() macro, and add FETCH_ERR_NETDB to the
error code in the _netdb_seterr() macro.
Add categories to the _netdb_errlist table.
Report errors through the Common Error library.
common.h:
Add the DEBUG macros.
Add prototype for fetchConnect().
Remove the prototype for _fetch_errstring(), which is local to common.c
Add a categroy field to struct fetcherr, and define constants for
error categories.
Define macros for _{url,netdb,ftp,http}_seterr().
errors.et: (new file)
List error categories.
fetch.3:
Document the fetchStat*() functions.
Move the "unimplemented functionality" comments from NOTES to BUGS.
Document that applications which use libfetch must also use
libcom_err, and list existing error codes.
Undocument fetchLastErr{Code,String}.
Remove the (empty) DIAGNOSTICS section.
Mention Eugene Skepner in the AUTHORS section.
fetch.c:
Move the DEBUG macros to common.c
Add fetchStat() and fetchStatURL().
Generate error messages for URL parser errors, and fix a minor bug
in the parser.
Use 'struct url' instead of 'url_t'.
Remove fetchLastErr{Code,String}.
fetch.h:
Use 'struct url' instead of 'url_t', and remove the typedef.
Define struct url_stat (used by fetchStat()).
Add prototypes for fetchStat*().
Remove the declarations for fetchLastErr{Code,String}.
Include fetch_err.h.
fetch_err.et: (new file)
Error table for libfetch.
file.c:
Add fetchStatFile().
Use 'struct url' instead of 'url_t'.
ftp.c:
Add fetchStatFTP().
Use 'struct url' instead of 'url_t'.
Don't use fetchLastErrCode.
ftp.errors:
Add categories to all error messages.
http.c:
Add fetchStatHTTP().
Use 'struct url' instead of 'url_t'.
Don't use fetchLastErr{Code,Text}.
http.errors:
Add categories to all error messages.
Prompted by: jkh and Eugene Skepner
Numerous sugestions from: Garett Wollman and Eugene Skepner
1998-11-06 22:14:08 +00:00
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_fetch_finderr(struct fetcherr *p, int e)
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1998-11-05 19:48:17 +00:00
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{
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2002-02-05 22:13:51 +00:00
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while (p->num != -1 && p->num != e)
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p++;
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return (p);
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1998-11-05 19:48:17 +00:00
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}
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/*
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* Set error code
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*/
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void
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_fetch_seterr(struct fetcherr *p, int e)
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{
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2002-02-05 22:13:51 +00:00
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p = _fetch_finderr(p, e);
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fetchLastErrCode = p->cat;
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snprintf(fetchLastErrString, MAXERRSTRING, "%s", p->string);
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1998-11-05 19:48:17 +00:00
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}
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/*
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* Set error code according to errno
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*/
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void
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_fetch_syserr(void)
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{
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2002-02-05 22:13:51 +00:00
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switch (errno) {
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case 0:
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fetchLastErrCode = FETCH_OK;
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break;
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case EPERM:
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case EACCES:
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case EROFS:
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case EAUTH:
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case ENEEDAUTH:
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fetchLastErrCode = FETCH_AUTH;
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break;
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case ENOENT:
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case EISDIR: /* XXX */
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fetchLastErrCode = FETCH_UNAVAIL;
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break;
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case ENOMEM:
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fetchLastErrCode = FETCH_MEMORY;
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break;
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case EBUSY:
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case EAGAIN:
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fetchLastErrCode = FETCH_TEMP;
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break;
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case EEXIST:
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fetchLastErrCode = FETCH_EXISTS;
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break;
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case ENOSPC:
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fetchLastErrCode = FETCH_FULL;
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break;
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case EADDRINUSE:
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case EADDRNOTAVAIL:
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case ENETDOWN:
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case ENETUNREACH:
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case ENETRESET:
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case EHOSTUNREACH:
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fetchLastErrCode = FETCH_NETWORK;
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break;
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case ECONNABORTED:
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case ECONNRESET:
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fetchLastErrCode = FETCH_ABORT;
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break;
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case ETIMEDOUT:
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fetchLastErrCode = FETCH_TIMEOUT;
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break;
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case ECONNREFUSED:
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case EHOSTDOWN:
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fetchLastErrCode = FETCH_DOWN;
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break;
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default:
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fetchLastErrCode = FETCH_UNKNOWN;
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}
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snprintf(fetchLastErrString, MAXERRSTRING, "%s", strerror(errno));
|
1998-12-16 10:24:55 +00:00
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}
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/*
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* Emit status message
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*/
|
2000-05-25 16:24:31 +00:00
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void
|
2001-04-24 00:06:21 +00:00
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_fetch_info(const char *fmt, ...)
|
1998-12-16 10:24:55 +00:00
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{
|
2002-02-05 22:13:51 +00:00
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va_list ap;
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va_start(ap, fmt);
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vfprintf(stderr, fmt, ap);
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va_end(ap);
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fputc('\n', stderr);
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1998-11-05 19:48:17 +00:00
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}
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/*** Network-related utility functions ***************************************/
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2000-11-10 08:43:40 +00:00
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/*
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* Return the default port for a scheme
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*/
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int
|
2001-04-24 00:06:21 +00:00
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_fetch_default_port(const char *scheme)
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2000-11-10 08:43:40 +00:00
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{
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2002-02-05 22:13:51 +00:00
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struct servent *se;
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if ((se = getservbyname(scheme, "tcp")) != NULL)
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return (ntohs(se->s_port));
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if (strcasecmp(scheme, SCHEME_FTP) == 0)
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return (FTP_DEFAULT_PORT);
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|
|
if (strcasecmp(scheme, SCHEME_HTTP) == 0)
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return (HTTP_DEFAULT_PORT);
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return (0);
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2000-11-10 08:43:40 +00:00
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|
}
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|
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/*
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|
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|
|
* Return the default proxy port for a scheme
|
|
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|
*/
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|
int
|
2001-04-24 00:06:21 +00:00
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_fetch_default_proxy_port(const char *scheme)
|
2000-11-10 08:43:40 +00:00
|
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|
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{
|
2002-02-05 22:13:51 +00:00
|
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|
|
if (strcasecmp(scheme, SCHEME_FTP) == 0)
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|
|
return (FTP_DEFAULT_PROXY_PORT);
|
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|
|
if (strcasecmp(scheme, SCHEME_HTTP) == 0)
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|
|
return (HTTP_DEFAULT_PROXY_PORT);
|
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|
|
|
return (0);
|
2000-11-10 08:43:40 +00:00
|
|
|
|
}
|
|
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|
|
|
2002-06-11 11:27:28 +00:00
|
|
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|
|
2002-06-05 12:19:08 +00:00
|
|
|
|
/*
|
|
|
|
|
* Create a connection for an existing descriptor.
|
|
|
|
|
*/
|
|
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|
|
conn_t *
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|
|
_fetch_reopen(int sd)
|
|
|
|
|
{
|
|
|
|
|
conn_t *conn;
|
|
|
|
|
|
|
|
|
|
/* allocate and fill connection structure */
|
|
|
|
|
if ((conn = calloc(1, sizeof *conn)) == NULL)
|
|
|
|
|
return (NULL);
|
|
|
|
|
conn->sd = sd;
|
2002-06-11 11:27:28 +00:00
|
|
|
|
++conn->ref;
|
|
|
|
|
return (conn);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Bump a connection's reference count.
|
|
|
|
|
*/
|
|
|
|
|
conn_t *
|
|
|
|
|
_fetch_ref(conn_t *conn)
|
|
|
|
|
{
|
|
|
|
|
|
|
|
|
|
++conn->ref;
|
2002-06-05 12:19:08 +00:00
|
|
|
|
return (conn);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
1998-11-05 19:48:17 +00:00
|
|
|
|
/*
|
|
|
|
|
* Establish a TCP connection to the specified port on the specified host.
|
|
|
|
|
*/
|
2002-06-05 10:05:03 +00:00
|
|
|
|
conn_t *
|
2001-04-24 00:06:21 +00:00
|
|
|
|
_fetch_connect(const char *host, int port, int af, int verbose)
|
1998-11-05 19:48:17 +00:00
|
|
|
|
{
|
2002-06-05 10:05:03 +00:00
|
|
|
|
conn_t *conn;
|
2002-02-05 22:13:51 +00:00
|
|
|
|
char pbuf[10];
|
|
|
|
|
struct addrinfo hints, *res, *res0;
|
|
|
|
|
int sd, err;
|
|
|
|
|
|
|
|
|
|
DEBUG(fprintf(stderr, "---> %s:%d\n", host, port));
|
|
|
|
|
|
|
|
|
|
if (verbose)
|
|
|
|
|
_fetch_info("looking up %s", host);
|
|
|
|
|
|
|
|
|
|
/* look up host name and set up socket address structure */
|
|
|
|
|
snprintf(pbuf, sizeof(pbuf), "%d", port);
|
|
|
|
|
memset(&hints, 0, sizeof(hints));
|
|
|
|
|
hints.ai_family = af;
|
|
|
|
|
hints.ai_socktype = SOCK_STREAM;
|
|
|
|
|
hints.ai_protocol = 0;
|
|
|
|
|
if ((err = getaddrinfo(host, pbuf, &hints, &res0)) != 0) {
|
|
|
|
|
_netdb_seterr(err);
|
2002-06-05 10:05:03 +00:00
|
|
|
|
return (NULL);
|
2002-02-05 22:13:51 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (verbose)
|
|
|
|
|
_fetch_info("connecting to %s:%d", host, port);
|
|
|
|
|
|
|
|
|
|
/* try to connect */
|
|
|
|
|
for (sd = -1, res = res0; res; res = res->ai_next) {
|
|
|
|
|
if ((sd = socket(res->ai_family, res->ai_socktype,
|
2000-07-11 23:50:08 +00:00
|
|
|
|
res->ai_protocol)) == -1)
|
2002-02-05 22:13:51 +00:00
|
|
|
|
continue;
|
|
|
|
|
if (connect(sd, res->ai_addr, res->ai_addrlen) != -1)
|
|
|
|
|
break;
|
|
|
|
|
close(sd);
|
|
|
|
|
sd = -1;
|
|
|
|
|
}
|
|
|
|
|
freeaddrinfo(res0);
|
|
|
|
|
if (sd == -1) {
|
|
|
|
|
_fetch_syserr();
|
2002-06-05 10:05:03 +00:00
|
|
|
|
return (NULL);
|
2002-02-05 22:13:51 +00:00
|
|
|
|
}
|
|
|
|
|
|
2002-06-05 12:19:08 +00:00
|
|
|
|
if ((conn = _fetch_reopen(sd)) == NULL)
|
2002-06-05 10:05:03 +00:00
|
|
|
|
close(sd);
|
|
|
|
|
return (conn);
|
1998-11-05 19:48:17 +00:00
|
|
|
|
}
|
1998-12-21 19:41:50 +00:00
|
|
|
|
|
|
|
|
|
|
2002-06-05 12:46:36 +00:00
|
|
|
|
/*
|
|
|
|
|
* Enable SSL on a connection.
|
|
|
|
|
*/
|
|
|
|
|
int
|
|
|
|
|
_fetch_ssl(conn_t *conn, int verbose)
|
|
|
|
|
{
|
|
|
|
|
|
2002-06-05 21:35:35 +00:00
|
|
|
|
#ifdef WITH_SSL
|
2002-06-05 12:46:36 +00:00
|
|
|
|
/* Init the SSL library and context */
|
|
|
|
|
if (!SSL_library_init()){
|
|
|
|
|
fprintf(stderr, "SSL library init failed\n");
|
|
|
|
|
return (-1);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
SSL_load_error_strings();
|
|
|
|
|
|
|
|
|
|
conn->ssl_meth = SSLv23_client_method();
|
|
|
|
|
conn->ssl_ctx = SSL_CTX_new(conn->ssl_meth);
|
|
|
|
|
|
|
|
|
|
conn->ssl = SSL_new(conn->ssl_ctx);
|
|
|
|
|
if (conn->ssl == NULL){
|
|
|
|
|
fprintf(stderr, "SSL context creation failed\n");
|
|
|
|
|
return (-1);
|
|
|
|
|
}
|
|
|
|
|
SSL_set_fd(conn->ssl, conn->sd);
|
|
|
|
|
if (SSL_connect(conn->ssl) == -1){
|
|
|
|
|
ERR_print_errors_fp(stderr);
|
|
|
|
|
return (-1);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (verbose) {
|
|
|
|
|
X509_NAME *name;
|
|
|
|
|
char *str;
|
|
|
|
|
|
|
|
|
|
fprintf(stderr, "SSL connection established using %s\n",
|
|
|
|
|
SSL_get_cipher(conn->ssl));
|
|
|
|
|
conn->ssl_cert = SSL_get_peer_certificate(conn->ssl);
|
|
|
|
|
name = X509_get_subject_name(conn->ssl_cert);
|
|
|
|
|
str = X509_NAME_oneline(name, 0, 0);
|
|
|
|
|
printf("Certificate subject: %s\n", str);
|
|
|
|
|
free(str);
|
|
|
|
|
name = X509_get_issuer_name(conn->ssl_cert);
|
|
|
|
|
str = X509_NAME_oneline(name, 0, 0);
|
|
|
|
|
printf("Certificate issuer: %s\n", str);
|
|
|
|
|
free(str);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return (0);
|
2002-06-05 21:35:35 +00:00
|
|
|
|
#else
|
|
|
|
|
(void)conn;
|
|
|
|
|
(void)verbose;
|
|
|
|
|
fprintf(stderr, "SSL support disabled\n");
|
|
|
|
|
return (-1);
|
|
|
|
|
#endif
|
2002-06-05 12:46:36 +00:00
|
|
|
|
}
|
|
|
|
|
|
2002-06-11 11:27:28 +00:00
|
|
|
|
|
2000-01-07 12:58:40 +00:00
|
|
|
|
/*
|
2002-06-05 12:19:08 +00:00
|
|
|
|
* Read a character from a connection w/ timeout
|
2000-01-07 12:58:40 +00:00
|
|
|
|
*/
|
2002-06-05 12:19:08 +00:00
|
|
|
|
ssize_t
|
|
|
|
|
_fetch_read(conn_t *conn, char *buf, size_t len)
|
2000-01-07 12:58:40 +00:00
|
|
|
|
{
|
2002-02-05 22:13:51 +00:00
|
|
|
|
struct timeval now, timeout, wait;
|
|
|
|
|
fd_set readfds;
|
2002-06-05 12:19:08 +00:00
|
|
|
|
ssize_t rlen, total;
|
2002-02-05 22:13:51 +00:00
|
|
|
|
int r;
|
|
|
|
|
|
2000-01-07 12:58:40 +00:00
|
|
|
|
if (fetchTimeout) {
|
2002-06-05 12:19:08 +00:00
|
|
|
|
FD_ZERO(&readfds);
|
2002-02-05 22:13:51 +00:00
|
|
|
|
gettimeofday(&timeout, NULL);
|
|
|
|
|
timeout.tv_sec += fetchTimeout;
|
2000-01-07 12:58:40 +00:00
|
|
|
|
}
|
2002-02-05 22:13:51 +00:00
|
|
|
|
|
2002-06-05 12:19:08 +00:00
|
|
|
|
total = 0;
|
|
|
|
|
while (len > 0) {
|
|
|
|
|
while (fetchTimeout && !FD_ISSET(conn->sd, &readfds)) {
|
2002-06-05 10:05:03 +00:00
|
|
|
|
FD_SET(conn->sd, &readfds);
|
2002-02-05 22:13:51 +00:00
|
|
|
|
gettimeofday(&now, NULL);
|
|
|
|
|
wait.tv_sec = timeout.tv_sec - now.tv_sec;
|
|
|
|
|
wait.tv_usec = timeout.tv_usec - now.tv_usec;
|
|
|
|
|
if (wait.tv_usec < 0) {
|
|
|
|
|
wait.tv_usec += 1000000;
|
|
|
|
|
wait.tv_sec--;
|
|
|
|
|
}
|
2002-06-05 12:19:08 +00:00
|
|
|
|
if (wait.tv_sec < 0)
|
|
|
|
|
return (rlen);
|
|
|
|
|
errno = 0;
|
2002-06-05 10:05:03 +00:00
|
|
|
|
r = select(conn->sd + 1, &readfds, NULL, NULL, &wait);
|
2002-02-05 22:13:51 +00:00
|
|
|
|
if (r == -1) {
|
|
|
|
|
if (errno == EINTR && fetchRestartCalls)
|
|
|
|
|
continue;
|
|
|
|
|
return (-1);
|
|
|
|
|
}
|
|
|
|
|
}
|
2002-06-05 21:35:35 +00:00
|
|
|
|
#ifdef WITH_SSL
|
2002-06-05 12:19:08 +00:00
|
|
|
|
if (conn->ssl != NULL)
|
|
|
|
|
rlen = SSL_read(conn->ssl, buf, len);
|
|
|
|
|
else
|
2002-06-05 21:35:35 +00:00
|
|
|
|
#endif
|
2002-06-05 12:19:08 +00:00
|
|
|
|
rlen = read(conn->sd, buf, len);
|
|
|
|
|
if (rlen == 0)
|
2002-02-05 22:13:51 +00:00
|
|
|
|
break;
|
2002-06-05 12:19:08 +00:00
|
|
|
|
if (rlen < 0) {
|
2002-02-05 22:13:51 +00:00
|
|
|
|
if (errno == EINTR && fetchRestartCalls)
|
|
|
|
|
continue;
|
|
|
|
|
return (-1);
|
|
|
|
|
}
|
2002-06-05 12:19:08 +00:00
|
|
|
|
len -= rlen;
|
|
|
|
|
buf += rlen;
|
|
|
|
|
total += rlen;
|
|
|
|
|
}
|
|
|
|
|
return (total);
|
|
|
|
|
}
|
|
|
|
|
|
2002-06-11 11:27:28 +00:00
|
|
|
|
|
2002-06-05 12:19:08 +00:00
|
|
|
|
/*
|
|
|
|
|
* Read a line of text from a connection w/ timeout
|
|
|
|
|
*/
|
|
|
|
|
#define MIN_BUF_SIZE 1024
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
_fetch_getln(conn_t *conn)
|
|
|
|
|
{
|
|
|
|
|
char *tmp;
|
|
|
|
|
size_t tmpsize;
|
|
|
|
|
char c;
|
|
|
|
|
|
|
|
|
|
if (conn->buf == NULL) {
|
|
|
|
|
if ((conn->buf = malloc(MIN_BUF_SIZE)) == NULL) {
|
|
|
|
|
errno = ENOMEM;
|
|
|
|
|
return (-1);
|
|
|
|
|
}
|
|
|
|
|
conn->bufsize = MIN_BUF_SIZE;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
conn->buf[0] = '\0';
|
|
|
|
|
conn->buflen = 0;
|
|
|
|
|
|
|
|
|
|
do {
|
|
|
|
|
if (_fetch_read(conn, &c, 1) == -1)
|
|
|
|
|
return (-1);
|
2002-06-05 10:05:03 +00:00
|
|
|
|
conn->buf[conn->buflen++] = c;
|
|
|
|
|
if (conn->buflen == conn->bufsize) {
|
|
|
|
|
tmp = conn->buf;
|
|
|
|
|
tmpsize = conn->bufsize * 2 + 1;
|
|
|
|
|
if ((tmp = realloc(tmp, tmpsize)) == NULL) {
|
2002-02-05 22:13:51 +00:00
|
|
|
|
errno = ENOMEM;
|
|
|
|
|
return (-1);
|
|
|
|
|
}
|
2002-06-05 10:05:03 +00:00
|
|
|
|
conn->buf = tmp;
|
|
|
|
|
conn->bufsize = tmpsize;
|
2002-02-05 22:13:51 +00:00
|
|
|
|
}
|
|
|
|
|
} while (c != '\n');
|
|
|
|
|
|
2002-06-05 10:05:03 +00:00
|
|
|
|
conn->buf[conn->buflen] = '\0';
|
|
|
|
|
DEBUG(fprintf(stderr, "<<< %s", conn->buf));
|
2002-02-05 22:13:51 +00:00
|
|
|
|
return (0);
|
2000-01-07 12:58:40 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
2000-07-11 23:50:08 +00:00
|
|
|
|
/*
|
2002-06-05 12:19:08 +00:00
|
|
|
|
* Write to a connection w/ timeout
|
|
|
|
|
*/
|
|
|
|
|
ssize_t
|
|
|
|
|
_fetch_write(conn_t *conn, const char *buf, size_t len)
|
|
|
|
|
{
|
|
|
|
|
struct timeval now, timeout, wait;
|
|
|
|
|
fd_set writefds;
|
|
|
|
|
ssize_t wlen, total;
|
|
|
|
|
int r;
|
|
|
|
|
|
|
|
|
|
if (fetchTimeout) {
|
|
|
|
|
FD_ZERO(&writefds);
|
|
|
|
|
gettimeofday(&timeout, NULL);
|
|
|
|
|
timeout.tv_sec += fetchTimeout;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
while (len > 0) {
|
|
|
|
|
while (fetchTimeout && !FD_ISSET(conn->sd, &writefds)) {
|
|
|
|
|
FD_SET(conn->sd, &writefds);
|
|
|
|
|
gettimeofday(&now, NULL);
|
|
|
|
|
wait.tv_sec = timeout.tv_sec - now.tv_sec;
|
|
|
|
|
wait.tv_usec = timeout.tv_usec - now.tv_usec;
|
|
|
|
|
if (wait.tv_usec < 0) {
|
|
|
|
|
wait.tv_usec += 1000000;
|
|
|
|
|
wait.tv_sec--;
|
|
|
|
|
}
|
|
|
|
|
if (wait.tv_sec < 0) {
|
|
|
|
|
errno = ETIMEDOUT;
|
|
|
|
|
return (-1);
|
|
|
|
|
}
|
|
|
|
|
errno = 0;
|
|
|
|
|
r = select(conn->sd + 1, NULL, &writefds, NULL, &wait);
|
|
|
|
|
if (r == -1) {
|
|
|
|
|
if (errno == EINTR && fetchRestartCalls)
|
|
|
|
|
continue;
|
|
|
|
|
return (-1);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
errno = 0;
|
2002-06-05 21:35:35 +00:00
|
|
|
|
#ifdef WITH_SSL
|
2002-06-05 12:19:08 +00:00
|
|
|
|
if (conn->ssl != NULL)
|
|
|
|
|
wlen = SSL_write(conn->ssl, buf, len);
|
|
|
|
|
else
|
2002-06-05 21:35:35 +00:00
|
|
|
|
#endif
|
2002-06-05 12:19:08 +00:00
|
|
|
|
wlen = write(conn->sd, buf, len);
|
|
|
|
|
if (wlen == 0)
|
|
|
|
|
/* we consider a short write a failure */
|
|
|
|
|
return (-1);
|
|
|
|
|
if (wlen < 0) {
|
|
|
|
|
if (errno == EINTR && fetchRestartCalls)
|
|
|
|
|
continue;
|
|
|
|
|
return (-1);
|
|
|
|
|
}
|
|
|
|
|
len -= wlen;
|
|
|
|
|
buf += wlen;
|
|
|
|
|
total += wlen;
|
|
|
|
|
}
|
|
|
|
|
return (total);
|
|
|
|
|
}
|
|
|
|
|
|
2002-06-11 11:27:28 +00:00
|
|
|
|
|
2002-06-05 12:19:08 +00:00
|
|
|
|
/*
|
|
|
|
|
* Write a line of text to a connection w/ timeout
|
2000-07-11 23:50:08 +00:00
|
|
|
|
*/
|
|
|
|
|
int
|
2002-06-05 10:05:03 +00:00
|
|
|
|
_fetch_putln(conn_t *conn, const char *str, size_t len)
|
2000-07-11 23:50:08 +00:00
|
|
|
|
{
|
2002-06-24 12:18:41 +00:00
|
|
|
|
|
|
|
|
|
DEBUG(fprintf(stderr, ">>> %s\n", str));
|
2002-06-05 12:19:08 +00:00
|
|
|
|
if (_fetch_write(conn, str, len) == -1 ||
|
|
|
|
|
_fetch_write(conn, ENDL, sizeof ENDL) == -1)
|
2002-02-05 22:13:51 +00:00
|
|
|
|
return (-1);
|
|
|
|
|
return (0);
|
2000-07-11 23:50:08 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
2002-06-05 10:05:03 +00:00
|
|
|
|
/*
|
|
|
|
|
* Close connection
|
|
|
|
|
*/
|
|
|
|
|
int
|
|
|
|
|
_fetch_close(conn_t *conn)
|
|
|
|
|
{
|
|
|
|
|
int ret;
|
|
|
|
|
|
2002-06-11 11:27:28 +00:00
|
|
|
|
if (--conn->ref > 0)
|
|
|
|
|
return (0);
|
2002-06-05 10:05:03 +00:00
|
|
|
|
ret = close(conn->sd);
|
|
|
|
|
free(conn);
|
|
|
|
|
return (ret);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
1998-12-21 19:41:50 +00:00
|
|
|
|
/*** Directory-related utility functions *************************************/
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
_fetch_add_entry(struct url_ent **p, int *size, int *len,
|
2002-02-05 22:13:51 +00:00
|
|
|
|
const char *name, struct url_stat *us)
|
1998-12-21 19:41:50 +00:00
|
|
|
|
{
|
2002-02-05 22:13:51 +00:00
|
|
|
|
struct url_ent *tmp;
|
1998-12-21 19:41:50 +00:00
|
|
|
|
|
2002-02-05 22:13:51 +00:00
|
|
|
|
if (*p == NULL) {
|
2002-02-05 22:15:16 +00:00
|
|
|
|
*size = 0;
|
2002-02-05 22:13:51 +00:00
|
|
|
|
*len = 0;
|
1998-12-21 19:41:50 +00:00
|
|
|
|
}
|
|
|
|
|
|
2002-02-05 22:13:51 +00:00
|
|
|
|
if (*len >= *size - 1) {
|
2002-02-05 22:15:16 +00:00
|
|
|
|
tmp = realloc(*p, (*size * 2 + 1) * sizeof **p);
|
2002-02-05 22:13:51 +00:00
|
|
|
|
if (tmp == NULL) {
|
|
|
|
|
errno = ENOMEM;
|
|
|
|
|
_fetch_syserr();
|
|
|
|
|
return (-1);
|
|
|
|
|
}
|
2002-02-05 22:15:16 +00:00
|
|
|
|
*size = (*size * 2 + 1);
|
2002-02-05 22:13:51 +00:00
|
|
|
|
*p = tmp;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
tmp = *p + *len;
|
|
|
|
|
snprintf(tmp->name, PATH_MAX, "%s", name);
|
|
|
|
|
bcopy(us, &tmp->stat, sizeof *us);
|
1998-12-21 19:41:50 +00:00
|
|
|
|
|
2002-02-05 22:13:51 +00:00
|
|
|
|
(*len)++;
|
|
|
|
|
(++tmp)->name[0] = 0;
|
1998-12-21 19:41:50 +00:00
|
|
|
|
|
2002-02-05 22:13:51 +00:00
|
|
|
|
return (0);
|
1998-12-21 19:41:50 +00:00
|
|
|
|
}
|