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master
belliash 8 년 전
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e7b12fd699
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d79b294105
8개의 변경된 파일과 1474개의 추가작업 그리고 4개의 파일을 삭제
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  1. +339
    -0
      COPYING
  2. +44
    -0
      Makefile
  3. +21
    -0
      README
  4. +0
    -4
      README.md
  5. +823
    -0
      libweb.c
  6. +79
    -0
      libweb.h
  7. +89
    -0
      webget.c
  8. +79
    -0
      webpost.c

+ 339
- 0
COPYING 파일 보기

@ -0,0 +1,339 @@
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
the GNU Lesser General Public License instead.) You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.
To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have. You must make sure that they, too, receive or can get the
source code. And you must show them these terms so they know their
rights.
We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.
Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free
software. If the software is modified by someone else and passed on, we
want its recipients to know that what they have is not the original, so
that any problems introduced by others will not reflect on the original
authors' reputations.
Finally, any free program is threatened constantly by software
patents. We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in effect making the
program proprietary. To prevent this, we have made it clear that any
patent must be licensed for everyone's free use or not licensed at all.
The precise terms and conditions for copying, distribution and
modification follow.
GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License. The "Program", below,
refers to any such program or work, and a "work based on the Program"
means either the Program or any derivative work under copyright law:
that is to say, a work containing the Program or a portion of it,
either verbatim or with modifications and/or translated into another
language. (Hereinafter, translation is included without limitation in
the term "modification".) Each licensee is addressed as "you".
Activities other than copying, distribution and modification are not
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running the Program is not restricted, and the output from the Program
is covered only if its contents constitute a work based on the
Program (independent of having been made by running the Program).
Whether that is true depends on what the Program does.
1. You may copy and distribute verbatim copies of the Program's
source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the
notices that refer to this License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
along with the Program.
You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.
2. You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:
a) You must cause the modified files to carry prominent notices
stating that you changed the files and the date of any change.
b) You must cause any work that you distribute or publish, that in
whole or in part contains or is derived from the Program or any
part thereof, to be licensed as a whole at no charge to all third
parties under the terms of this License.
c) If the modified program normally reads commands interactively
when run, you must cause it, when started running for such
interactive use in the most ordinary way, to print or display an
announcement including an appropriate copyright notice and a
notice that there is no warranty (or else, saying that you provide
a warranty) and that users may redistribute the program under
these conditions, and telling the user how to view a copy of this
License. (Exception: if the Program itself is interactive but
does not normally print such an announcement, your work based on
the Program is not required to print an announcement.)
These requirements apply to the modified work as a whole. If
identifiable sections of that work are not derived from the Program,
and can be reasonably considered independent and separate works in
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collective works based on the Program.
In addition, mere aggregation of another work not based on the Program
with the Program (or with a work based on the Program) on a volume of
a storage or distribution medium does not bring the other work under
the scope of this License.
3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:
a) Accompany it with the complete corresponding machine-readable
source code, which must be distributed under the terms of Sections
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c) Accompany it with the information you received as to the offer
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except as expressly provided under this License. Any attempt
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However, parties who have received copies, or rights, from you under
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Program), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying
the Program or works based on it.
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Program), the recipient automatically receives a license from the
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You are not responsible for enforcing compliance by third parties to
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infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or
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may not distribute the Program at all. For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.
If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.
It is not the purpose of this section to induce you to infringe any
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such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices. Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.
This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded. In such case, this License incorporates
the limitation as if written in the body of this License.
9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the Program
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either of that version or of any later version published by the Free
Software Foundation. If the Program does not specify a version number of
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Foundation.
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to ask for permission. For software which is copyrighted by the Free
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of preserving the free status of all derivatives of our free software and
of promoting the sharing and reuse of software generally.
NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License.

+ 44
- 0
Makefile 파일 보기

@ -0,0 +1,44 @@
CC = gcc
CFLAGS = -O2 -s -D_GNU_SOURCE
LDLIBS = -lcyassl -lm
PREFIX =
BINDIR = $(PREFIX)/usr/bin
ifeq ($(CROSS_BUILD), 1)
DEFS:=-DCROSS_BUILD
else
DEFS:=
endif
all: webget webpost
@echo "All done!"
webget: webget.o libweb.o
$(CC) $(CFLAGS) $(LDLIBS) webget.o libweb.o -o webget
webpost: webpost.o libweb.o
$(CC) $(CFLAGS) $(LDLIBS) webpost.o libweb.o -o webpost
webget.o: webget.c
$(CC) $(CFLAGS) $(DEFS) -c webget.c
webpost.o: webpost.c
$(CC) $(CFLAGS) $(DEFS) -c webpost.c
libweb.o: libweb.c
$(CC) $(CFLAGS) $(DEFS) -c libweb.c
install:
mkdir -p $(BINDIR)
cp webget $(BINDIR)
cp webpost $(BINDIR)
@echo "All done!"
uninstall:
@rm -f $(BINDIR)/webget
@rm -f $(BINDIR)/webpost
@echo "All done!"
clean:
rm -f webget webpost *.o
@echo "All done!"

+ 21
- 0
README 파일 보기

@ -0,0 +1,21 @@
WebGet
======
WebGet fetches an HTTP and HTTPS URLs and dumps the contents to stdout. It does
not do gopher, ftp, file, news, or any other type of URL, only HTTP. It can be
configured to do HTTPS fetches as well.
It is based on http_get <http://acme.com/software/http_get/>
WebPost
=======
WebPost does a POST operation to an HTTP and HTTPS URLs and dumps the results to
stdout. It does not do gopher, ftp, file, news, or any other type of URL, only
HTTP. It can be configured to do HTTPS POSTs as well.
It is based on http_post <http://acme.com/software/http_post/>

+ 0
- 4
README.md 파일 보기

@ -1,4 +0,0 @@
webget
======
WebGet &amp; WebPost Utilities

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- 0
libweb.c 파일 보기

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/**
* @PROJECT WebGet Downloader
* @COPYRIGHT See COPYING in the top level directory
* @FILE libweb.c
* @PURPOSE Common Web Library
* @DEVELOPERS Al Globus <globus@nas.nasa.gov>
* Rafal Kupiec <belliash@asiotec.eu.org>
* Jef Poskanzer <jef@mail.acme.com>
*/
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <signal.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <cyassl/openssl/ssl.h>
#include <cyassl/openssl/err.h>
#include <cyassl/error.h>
#ifdef CROSS_BUILD
#include <cyassl/cyassl_error.h>
#endif
#include "libweb.h"
int b64_encode(unsigned char* ptr, int len, char* space, int size) {
int ptr_idx, space_idx, phase;
char c;
space_idx = 0;
phase = 0;
for(ptr_idx = 0; ptr_idx < len; ++ptr_idx) {
switch(phase) {
case 0:
c = b64_encode_table[ptr[ptr_idx] >> 2];
if(space_idx < size) {
space[space_idx++] = c;
}
c = b64_encode_table[(ptr[ptr_idx] & 0x3) << 4];
if(space_idx < size) {
space[space_idx++] = c;
}
++phase;
break;
case 1:
space[space_idx - 1] = b64_encode_table[b64_decode_table[(int) ((unsigned char) space[space_idx - 1])] | (ptr[ptr_idx] >> 4)];
c = b64_encode_table[(ptr[ptr_idx] & 0xf) << 2];
if(space_idx < size) {
space[space_idx++] = c;
}
++phase;
break;
case 2:
space[space_idx - 1] = b64_encode_table[b64_decode_table[(int) ((unsigned char) space[space_idx - 1])] | (ptr[ptr_idx] >> 6)];
c = b64_encode_table[ptr[ptr_idx] & 0x3f];
if(space_idx < size) {
space[space_idx++] = c;
}
phase = 0;
break;
}
}
while(phase++ < 3) {
if(space_idx < size) {
space[space_idx++] = '=';
}
}
return space_idx;
}
void check(void* ptr) {
if(ptr == (void*) 0) {
(void) fprintf(stderr, "%s: out of memory\n", argv0);
exit(1);
}
}
off_t file_bytes(const char* filename) {
struct stat sb;
if(stat(filename, &sb) < 0) {
perror(filename);
exit(1);
}
return sb.st_size;
}
int file_copy(const char* filename, char* buf) {
int fd;
struct stat sb;
off_t bytes;
fd = open(filename, O_RDONLY);
if(fd == -1) {
perror(filename);
exit(-1);
}
if(fstat(fd, &sb) != 0) {
perror(filename);
exit(-1);
}
bytes = sb.st_size;
if(read(fd, buf, bytes) != bytes) {
perror(filename);
exit(-1);
}
(void) close(fd);
return bytes;
}
int getURL(char* url, char* referer, char* user_agent, char* auth_token, int ncookies, char** cookies, char* header_name, char* header_value) {
char* s;
int protocol;
char host[2000];
int host_len;
unsigned short port;
char* file = (char*) 0;
char* http = "http://";
int http_len = strlen( http );
char* https = "https://";
int https_len = strlen( https );
int proto_len;
if(url == (char*) 0) {
(void) fprintf(stderr, "%s: null URL\n", argv0);
exit(1);
}
if(strncmp(http, url, http_len) == 0) {
proto_len = http_len;
protocol = PROTO_HTTP;
} else if(strncmp(https, url, https_len) == 0) {
proto_len = https_len;
protocol = PROTO_HTTPS;
} else {
(void) fprintf(stderr, "%s: non-http URL\n", argv0);
exit(1);
}
for(s = url + proto_len; *s != '\0' && *s != ':' && *s != '/'; ++s);
host_len = s - url;
host_len -= proto_len;
strncpy(host, url + proto_len, host_len);
host[host_len] = '\0';
if(*s == ':') {
port = (unsigned short) atoi(++s);
while(*s != '\0' && *s != '/')
++s;
} else {
if(protocol == PROTO_HTTPS) {
port = 443;
} else {
port = 80;
}
}
if(*s == '\0') {
file = "/";
} else {
file = s;
}
return getURLbyParts(protocol, host, port, file, referer, user_agent, auth_token, ncookies, cookies, header_name, header_value);
}
int getURLbyParts(int protocol, char* host, unsigned short port, char* file, char* referer, char* user_agent, char* auth_token, int ncookies, char** cookies, char* header_name, char* header_value) {
int sockfd;
SSL_CTX* ssl_ctx = (SSL_CTX*) 0;
SSL* ssl = (SSL*) 0;
char buf[20000];
int i, bytes, b, header_state, status;
(void) alarm(timeout);
sockfd = open_client_socket(host, port);
if(protocol == PROTO_HTTPS) {
int r;
ssl_ctx = SSL_CTX_new(TLSv1_client_method());
SSL_CTX_set_verify(ssl_ctx, SSL_VERIFY_NONE, 0);
ssl = SSL_new(ssl_ctx);
SSL_set_fd(ssl, sockfd);
r = SSL_connect(ssl);
if(r <= 0) {
(void) fprintf(stderr, "%s: %s - SSL connection failed - %d\n", argv0, url, r);
exit(1);
}
}
(void) alarm(timeout);
bytes = snprintf(buf, sizeof(buf), "GET %s HTTP/1.0\r\n", file);
bytes += snprintf(&buf[bytes], sizeof(buf) - bytes, "Host: %s\r\n", host);
if(referer != (char*) 0) {
bytes += snprintf(&buf[bytes], sizeof(buf) - bytes, "Referer: %s\r\n", referer);
}
bytes += snprintf(&buf[bytes], sizeof(buf) - bytes, "User-Agent: %s\r\n", user_agent);
bytes += snprintf(&buf[bytes], sizeof(buf) - bytes, "Accept: */*\r\n");
bytes += snprintf(&buf[bytes], sizeof(buf) - bytes, "Accept-Language: en\r\n");
bytes += snprintf(&buf[bytes], sizeof(buf) - bytes, "Accept-Charset: iso-8859-1,*,utf-8\r\n");
if(auth_token != (char*) 0) {
char token_buf[1000];
token_buf[b64_encode((unsigned char*) auth_token, strlen( auth_token ), token_buf, sizeof(token_buf))] = '\0';
bytes += snprintf(&buf[bytes], sizeof(buf) - bytes, "Authorization: Basic %s\r\n", token_buf);
}
for(i = 0; i < ncookies; ++i) {
bytes += snprintf(&buf[bytes], sizeof(buf) - bytes, "Cookie: %s\r\n", cookies[i]);
}
if(header_name != (char*) 0) {
bytes += snprintf(&buf[bytes], sizeof(buf) - bytes, "%s: %s\r\n", header_name, header_value);
}
bytes += snprintf(&buf[bytes], sizeof(buf) - bytes, "\r\n");
if (protocol == PROTO_HTTPS)
(void) SSL_write(ssl, buf, bytes);
else
(void) write(sockfd, buf, bytes);
(void) alarm(timeout);
header_state = HDST_LINE1_PROTOCOL;
status = 0;
for(;;) {
if(protocol == PROTO_HTTPS) {
bytes = SSL_read(ssl, buf, sizeof(buf));
} else {
bytes = read(sockfd, buf, sizeof(buf));
}
if(bytes <= 0) {
break;
}
for(b = 0; b < bytes; ++b) {
if(verbose) {
(void) write(1, &buf[b], 1);
}
switch(header_state) {
case HDST_LINE1_PROTOCOL:
switch(buf[b]) {
case ' ': case '\t':
header_state = HDST_LINE1_WHITESPACE;
break;
case '\n':
header_state = HDST_LF;
break;
case '\r':
header_state = HDST_CR;
break;
}
break;
case HDST_LINE1_WHITESPACE:
switch(buf[b]) {
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
status = buf[b] - '0';
header_state = HDST_LINE1_STATUS;
break;
case '\n':
header_state = HDST_LF;
break;
case '\r':
header_state = HDST_CR;
break;
default:
header_state = HDST_TEXT;
break;
}
break;
case HDST_LINE1_STATUS:
switch(buf[b]) {
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
status = status * 10 + buf[b] - '0';
break;
case '\n':
header_state = HDST_LF;
break;
case '\r':
header_state = HDST_CR;
break;
default:
header_state = HDST_TEXT;
break;
}
break;
case HDST_BOL:
switch(buf[b]) {
case '\n':
header_state = HDST_LF;
break;
case '\r':
header_state = HDST_CR;
break;
default:
header_state = HDST_TEXT;
break;
}
break;
case HDST_TEXT:
switch(buf[b]) {
case '\n':
header_state = HDST_LF;
break;
case '\r':
header_state = HDST_CR;
break;
}
break;
case HDST_LF:
switch(buf[b]) {
case '\n':
goto end_of_headers;
case '\r':
header_state = HDST_CR;
break;
default:
header_state = HDST_TEXT;
break;
}
break;
case HDST_CR:
switch(buf[b]) {
case '\n':
header_state = HDST_CRLF;
break;
case '\r':
goto end_of_headers;
default:
header_state = HDST_TEXT;
break;
}
break;
case HDST_CRLF:
switch(buf[b]) {
case '\n':
goto end_of_headers;
case '\r':
header_state = HDST_CRLFCR;
break;
default:
header_state = HDST_TEXT;
break;
}
break;
case HDST_CRLFCR:
switch(buf[b]) {
case '\n':
case '\r':
goto end_of_headers;
default:
header_state = HDST_TEXT;
break;
}
break;
}
}
}
end_of_headers:
if(bytes > 0) {
++b;
(void) write(1, &buf[b], bytes - b);
}
for(;;) {
(void) alarm(timeout);
if(protocol == PROTO_HTTPS) {
bytes = SSL_read(ssl, buf, sizeof(buf));
} else {
bytes = read(sockfd, buf, sizeof(buf));
}
if(bytes == 0) {
break;
}
if(bytes < 0) {
show_error("read");
}
(void) write(1, buf, bytes);
}
if(protocol == PROTO_HTTPS) {
SSL_free(ssl);
SSL_CTX_free(ssl_ctx);
}
(void) close(sockfd);
return status;
}
void* malloc_check(size_t size) {
void* ptr = malloc(size);
check(ptr);
return ptr;
}
int open_client_socket(char* hostname, unsigned short port) {
struct addrinfo hints;
char portstr[10];
int gaierr;
struct addrinfo* ai;
struct addrinfo* ai2;
struct addrinfo* aiv4;
struct addrinfo* aiv6;
struct sockaddr_in6 sa;
int sa_len, sock_family, sock_type, sock_protocol;
int sockfd;
(void) memset((void*) &sa, 0, sizeof(sa));
(void) memset(&hints, 0, sizeof(hints));
hints.ai_family = PF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
(void) snprintf(portstr, sizeof(portstr), "%d", (int) port);
if((gaierr = getaddrinfo(hostname, portstr, &hints, &ai)) != 0) {
(void) fprintf(stderr, "%s: getaddrinfo %s - %s\n", argv0, hostname, gai_strerror(gaierr));
exit(1);
}
aiv4 = (struct addrinfo*) 0;
aiv6 = (struct addrinfo*) 0;
for(ai2 = ai; ai2 != (struct addrinfo*) 0; ai2 = ai2->ai_next) {
switch(ai2->ai_family) {
case AF_INET:
if(aiv4 == (struct addrinfo*) 0) {
aiv4 = ai2;
}
break;
case AF_INET6:
if(aiv6 == (struct addrinfo*) 0) {
aiv6 = ai2;
}
break;
}
}
if(aiv4 != (struct addrinfo*) 0) {
if(sizeof(sa) < aiv4->ai_addrlen) {
(void) fprintf(stderr, "%s - sockaddr too small (%lu < %lu)\n", hostname, (unsigned long) sizeof(sa), (unsigned long) aiv4->ai_addrlen);
exit(1);
}
sock_family = aiv4->ai_family;
sock_type = aiv4->ai_socktype;
sock_protocol = aiv4->ai_protocol;
sa_len = aiv4->ai_addrlen;
(void) memmove(&sa, aiv4->ai_addr, sa_len);
goto ok;
}
if(aiv6 != (struct addrinfo*) 0) {
if(sizeof(sa) < aiv6->ai_addrlen) {
(void) fprintf(stderr, "%s - sockaddr too small (%lu < %lu)\n", hostname, (unsigned long) sizeof(sa), (unsigned long) aiv6->ai_addrlen);
exit(1);
}
sock_family = aiv6->ai_family;
sock_type = aiv6->ai_socktype;
sock_protocol = aiv6->ai_protocol;
sa_len = aiv6->ai_addrlen;
(void) memmove(&sa, aiv6->ai_addr, sa_len);
goto ok;
}
(void) fprintf(stderr, "%s: no valid address found for host %s\n", argv0, hostname);
exit(1);
ok:
freeaddrinfo(ai);
sockfd = socket(sock_family, sock_type, sock_protocol);
if(sockfd < 0) {
show_error("socket");
}
if(connect(sockfd, (struct sockaddr*) &sa, sa_len) < 0) {
show_error("connect");
}
return sockfd;
}
void postURL(char* url, char* referer, char* user_agent, char* auth_token, int ncookies, char** cookies, char* header_name, char* header_value, char** args, int argc) {
char* s;
int protocol;
char host[2000];
int host_len;
unsigned short port;
char* file = 0;
char* http = "http://";
int http_len = strlen(http);
char* https = "https://";
int https_len = strlen(https);
int proto_len;
if(url == (char*) 0) {
(void) fprintf(stderr, "%s: null URL\n", argv0);
exit(1);
}
if(strncmp(http, url, http_len) == 0) {
proto_len = http_len;
protocol = PROTO_HTTP;
} else if(strncmp(https, url, https_len) == 0) {
proto_len = https_len;
protocol = PROTO_HTTPS;
} else {
(void) fprintf(stderr, "%s: non-http URL\n", argv0);
exit(1);
}
for(s = url + proto_len; *s != '\0' && *s != ':' && *s != '/'; ++s);
host_len = s - url;
host_len -= proto_len;
strncpy(host, url + proto_len, host_len);
host[host_len] = '\0';
if(*s == ':') {
port = (unsigned short) atoi(++s);
while(*s != '\0' && *s != '/') {
++s;
}
} else {
if(protocol == PROTO_HTTPS) {
port = 443;
} else {
port = 80;
}
}
if(*s == '\0') {
file = "/";
} else {
file = s;
}
postURLbyParts(protocol, host, port, file, referer, user_agent, auth_token, ncookies, cookies, header_name, header_value, args, argc);
}
void postURLbyParts(int protocol, char* host, unsigned short port, char* file, char* referer, char* user_agent, char* auth_token, int ncookies, char** cookies, char* header_name, char* header_value, char** args, int argc) {
int sockfd;
SSL_CTX* ssl_ctx = (SSL_CTX*) 0;
SSL* ssl = (SSL*) 0;
char head_buf[20000];
int max_arg, total_bytes;
int multipart, next_arg_is_file;
static const char* const sep = "http_post-content-separator";
char* data_buf;
char* enc_buf;
int head_bytes, data_bytes, i, header_state;
char* eq;
(void) alarm(timeout);
sockfd = open_client_socket(host, port);
if(protocol == PROTO_HTTPS) {
int r;
ssl_ctx = SSL_CTX_new(TLSv1_client_method());
SSL_CTX_set_verify(ssl_ctx, SSL_VERIFY_NONE, 0);
ssl = SSL_new(ssl_ctx);
SSL_set_fd(ssl, sockfd);
r = SSL_connect(ssl);
if(r <= 0) {
(void) fprintf(stderr, "%s: %s - SSL connection failed - %d\n", argv0, url, r);
exit(1);
}
}
multipart = 0;
total_bytes = max_arg = 0;
next_arg_is_file = 0;
for(i = 0; i < argc ; ++i) {
int l = strlen(args[i]);
if(strcmp(args[i], "-f") == 0) {
multipart = 1;
next_arg_is_file = 1;
continue;
}
total_bytes += l;
if(l > max_arg) {
max_arg = l;
}
if(next_arg_is_file) {
eq = strchr(args[i], '=');
if(eq == (char*) 0) {
(void) fprintf(stderr, "%s: missing filename\n", argv0);
exit(1);
} else {
++eq;
total_bytes += file_bytes(eq);
}
next_arg_is_file = 0;
}
}
if(multipart) {
for(i = 0; i < argc ; ++i) {
total_bytes += strlen(sep) * 2 + 100;
}
total_bytes += strlen(sep) * 2;
} else {
total_bytes *= 4;
enc_buf = (char*) malloc_check(max_arg * 4);
}
data_buf = (char*) malloc_check(total_bytes);
if(multipart) {
next_arg_is_file = 0;
data_bytes = 0;
for(i = 0; i < argc; ++i) {
if(strcmp(args[i], "-f") == 0) {
next_arg_is_file = 1;
continue;
}
eq = strchr(args[i], '=');
if(eq == (char*) 0) {
data_bytes += sprintf(&data_buf[data_bytes], "--%s\r\nContent-Disposition: form-data\r\n\r\n%s\r\n", sep, args[i]);
} else {
*eq++ = '\0';
if(next_arg_is_file) {
data_bytes += sprintf(&data_buf[data_bytes], "--%s\r\nContent-Disposition: form-data; name=\"%s\"; filename=\"%s\"\r\n\r\n", sep, args[i], eq);
data_bytes += file_copy(eq, &data_buf[data_bytes]);
data_bytes += sprintf(&data_buf[data_bytes], "\r\n");
next_arg_is_file = 0;
} else {
data_bytes += sprintf(&data_buf[data_bytes], "--%s\r\nContent-Disposition: form-data; name=\"%s\"\r\n\r\n%s\r\n", sep, args[i], eq);
}
}
}
data_bytes += sprintf(&data_buf[data_bytes], "--%s--\r\n", sep);
} else {
data_bytes = 0;
for(i = 0; i < argc ; ++i) {
if(data_bytes > 0) {
data_bytes += sprintf(&data_buf[data_bytes], "&");
}
eq = strchr(args[i], '=');
if(eq == (char*) 0) {
strencode(enc_buf, args[i]);
data_bytes += sprintf(&data_buf[data_bytes], "%s", enc_buf);
} else {
*eq++ = '\0';
strencode(enc_buf, args[i]);
data_bytes += sprintf(&data_buf[data_bytes], "%s=", enc_buf);
strencode(enc_buf, eq);
data_bytes += sprintf(&data_buf[data_bytes], "%s", enc_buf);
}
}
}
(void) alarm(timeout);
head_bytes = snprintf(head_buf, sizeof(head_buf), "POST %s HTTP/1.0\r\n", file);
head_bytes += snprintf(&head_buf[head_bytes], sizeof(head_buf) - head_bytes, "Host: %s\r\n", host);
head_bytes += snprintf(&head_buf[head_bytes], sizeof(head_buf) - head_bytes, "Content-Length: %d\r\n", data_bytes);
if(referer != (char*) 0) {
head_bytes += snprintf(&head_buf[head_bytes], sizeof(head_buf) - head_bytes, "Referer: %s\r\n", referer);
}
head_bytes += snprintf(&head_buf[head_bytes], sizeof(head_buf) - head_bytes, "User-Agent: %s\r\n", user_agent);
if(multipart) {
head_bytes += snprintf(&head_buf[head_bytes], sizeof(head_buf) - head_bytes, "Content-type: multipart/form-data; boundary=\"%s\"\r\n", sep);
} else {
head_bytes += snprintf(&head_buf[head_bytes], sizeof(head_buf) - head_bytes, "Content-type: application/x-www-form-urlencoded\r\n");
}
head_bytes += snprintf(&head_buf[head_bytes], sizeof(head_buf) - head_bytes, "Accept: */*\r\n");
head_bytes += snprintf(&head_buf[head_bytes], sizeof(head_buf) - head_bytes, "Accept-Language: en\r\n");
head_bytes += snprintf(&head_buf[head_bytes], sizeof(head_buf) - head_bytes, "Accept-Charset: iso-8859-1,*,utf-8\r\n");
if(auth_token != (char*) 0) {
char token_buf[1000];
token_buf[b64_encode((unsigned char*) auth_token, strlen(auth_token), token_buf, sizeof(token_buf))] = '\0';
head_bytes += snprintf(&head_buf[head_bytes], sizeof(head_buf) - head_bytes, "Authorization: Basic %s\r\n", token_buf);
}
for(i = 0; i < ncookies; ++i) {
head_bytes += snprintf(&head_buf[head_bytes], sizeof(head_buf) - head_bytes, "Cookie: %s\r\n", cookies[i]);
}
if(header_name != (char*) 0) {
head_bytes += snprintf(&head_buf[head_bytes], sizeof(head_buf) - head_bytes, "%s: %s\r\n", header_name, header_value);
}
head_bytes += snprintf(&head_buf[head_bytes], sizeof(head_buf) - head_bytes, "\r\n");
if(protocol == PROTO_HTTPS) {
(void) SSL_write(ssl, head_buf, head_bytes);
} else {
(void) write(sockfd, head_buf, head_bytes);
}
if(protocol == PROTO_HTTPS) {
(void) SSL_write(ssl, data_buf, data_bytes);
} else {
(void) write(sockfd, data_buf, data_bytes);
}
(void) alarm(timeout);
header_state = HDST_BOL;
for(;;) {
if(protocol == PROTO_HTTPS) {
head_bytes = SSL_read(ssl, head_buf, sizeof(head_buf));
} else {
head_bytes = read(sockfd, head_buf, sizeof(head_buf));
}
if(head_bytes <= 0) {
break;
}
for(i = 0; i < head_bytes; ++i) {
if(verbose) {
(void) write(1, &head_buf[i], 1);
}
switch(header_state) {
case HDST_BOL:
switch(head_buf[i]) {
case '\n':
header_state = HDST_LF;
break;
case '\r':
header_state = HDST_CR;
break;
default:
header_state = HDST_TEXT;
break;
}
break;
case HDST_TEXT:
switch(head_buf[i]) {
case '\n':
header_state = HDST_LF;
break;
case '\r':
header_state = HDST_CR;
break;
}
break;
case HDST_LF:
switch(head_buf[i]) {
case '\n':
goto end_of_headers;
case '\r':
header_state = HDST_CR;
break;
default:
header_state = HDST_TEXT;
break;
}
break;
case HDST_CR:
switch(head_buf[i]) {
case '\n':
header_state = HDST_CRLF;
break;
case '\r':
goto end_of_headers;
default:
header_state = HDST_TEXT;
break;
}
break;
case HDST_CRLF:
switch(head_buf[i]) {
case '\n':
goto end_of_headers;
case '\r':
header_state = HDST_CRLFCR;
break;
default:
header_state = HDST_TEXT;
break;
}
break;
case HDST_CRLFCR:
switch(head_buf[i]) {
case '\n':
case '\r':
goto end_of_headers;
default:
header_state = HDST_TEXT;
break;
}
break;
}
}
}
end_of_headers:
if(head_bytes > 0) {
++i;
(void) write(1, &head_buf[i], head_bytes - i);
}
for(;;) {
(void) alarm(timeout);
if(protocol == PROTO_HTTPS) {
head_bytes = SSL_read(ssl, head_buf, sizeof(head_buf));
} else {
head_bytes = read(sockfd, head_buf, sizeof(head_buf));
}
if(head_bytes == 0) {
break;
}
if(head_bytes < 0) {
show_error("read");
}
(void) write(1, head_buf, head_bytes);
}
if(protocol == PROTO_HTTPS) {
SSL_free(ssl);
SSL_CTX_free(ssl_ctx);
}
(void) close(sockfd);
}
void show_error(char* cause) {
char buf[5000];
(void) sprintf(buf, "%s: %s - %s", argv0, url, cause);
perror(buf);
exit(1);
}
void sigcatch(int sig) {
(void) fprintf(stderr, "%s: %s - timed out\n", argv0, url);
exit(1);
}
void strencode(char* to, char* from) {
int tolen;
for(tolen = 0; *from != '\0'; ++from) {
if(isalnum(*from) || strchr("/_.", *from) != (char*) 0) {
*to = *from;
++to;
++tolen;
} else {
(void) sprintf(to, "%%%02x", (int) *from & 0xff);
to += 3;
tolen += 3;
}
}
*to = '\0';
}
void usage() {
(void) fprintf(stderr, "usage: %s [-c cookie] [-t timeout] [-r referer] [-u user-agent] [-a username:password] [-h header value] [-v] url\n", argv0);
exit(1);
}

+ 79
- 0
libweb.h 파일 보기

@ -0,0 +1,79 @@
/**
* @PROJECT WebGet Downloader
* @COPYRIGHT See COPYING in the top level directory
* @FILE libweb.h
* @PURPOSE Common Web Library
* @DEVELOPERS Al Globus <globus@nas.nasa.gov>
* Rafal Kupiec <belliash@asiotec.eu.org>
* Jef Poskanzer <jef@mail.acme.com>
*/
#ifndef __LIBWEB_H
#define __LIBWEB_H
#define HDST_LINE1_PROTOCOL 0
#define HDST_LINE1_WHITESPACE 1
#define HDST_LINE1_STATUS 2
#define HDST_BOL 10
#define HDST_TEXT 11
#define HDST_LF 12
#define HDST_CR 13
#define HDST_CRLF 14
#define HDST_CRLFCR 15
#define PROTO_HTTP 0
#define PROTO_HTTPS 1
#define MAX_COOKIES 20
char* argv0;
int timeout;
char* url;
int verbose;
static int b64_decode_table[256] = {
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* 00-0F */
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* 10-1F */
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,62,-1,-1,-1,63, /* 20-2F */
52,53,54,55,56,57,58,59,60,61,-1,-1,-1,-1,-1,-1, /* 30-3F */
-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14, /* 40-4F */
15,16,17,18,19,20,21,22,23,24,25,-1,-1,-1,-1,-1, /* 50-5F */
-1,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40, /* 60-6F */
41,42,43,44,45,46,47,48,49,50,51,-1,-1,-1,-1,-1, /* 70-7F */
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* 80-8F */
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* 90-9F */
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* A0-AF */
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* B0-BF */
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* C0-CF */
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* D0-DF */
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* E0-EF */
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1 /* F0-FF */
};
static char b64_encode_table[64] = {
'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', /* 0-7 */
'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', /* 8-15 */
'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', /* 16-23 */
'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', /* 24-31 */
'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', /* 32-39 */
'o', 'p', 'q', 'r', 's', 't', 'u', 'v', /* 40-47 */
'w', 'x', 'y', 'z', '0', '1', '2', '3', /* 48-55 */
'4', '5', '6', '7', '8', '9', '+', '/' /* 56-63 */
};
int b64_encode(unsigned char* ptr, int len, char* space, int size);
void check(void* ptr);
off_t file_bytes(const char* filename);
int file_copy(const char* filename, char* buf);
int getURL(char* url, char* referer, char* user_agent, char* auth_token, int ncookies, char** cookies, char* header_name, char* header_value);
int getURLbyParts(int protocol, char* host, unsigned short port, char* file, char* referer, char* user_agent, char* auth_token, int ncookies, char** cookies, char* header_name, char* header_value);
void* malloc_check(size_t size);
int open_client_socket(char* hostname, unsigned short port);
void postURL(char* url, char* referer, char* user_agent, char* auth_token, int ncookies, char** cookies, char* header_name, char* header_value, char** args, int argc);
void postURLbyParts(int protocol, char* host, unsigned short port, char* file, char* referer, char* user_agent, char* auth_token, int ncookies, char** cookies, char* header_name, char* header_value, char** args, int argc);
void show_error(char* cause);
void sigcatch(int sig);
void strencode(char* to, char* from);
void usage();
#endif

+ 89
- 0
webget.c 파일 보기

@ -0,0 +1,89 @@
/**
* @PROJECT WebGet Downloader
* @COPYRIGHT See COPYING in the top level directory
* @FILE webget.c
* @PURPOSE Web To StdOut Downloader
* @DEVELOPERS Al Globus <globus@nas.nasa.gov>
* Rafal Kupiec <belliash@asiotec.eu.org>
* Jef Poskanzer <jef@mail.acme.com>
*/
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include "libweb.h"
int main(int argc, char** argv) {
int argn;
char* referer;
char* user_agent;
char* auth_token;
int ncookies;
char* cookies[MAX_COOKIES];
char* header_name;
char* header_value;
int status;
argv0 = argv[0];
argn = 1;
timeout = 60;
referer = (char*) 0;
user_agent = "http_get";
auth_token = (char*) 0;
ncookies = 0;
header_name = (char*) 0;
header_value = (char*) 0;
verbose = 0;
while(argn < argc && argv[argn][0] == '-' && argv[argn][1] != '\0') {
if(strcmp(argv[argn], "-t") == 0 && argn + 1 < argc) {
++argn;
timeout = atoi(argv[argn]);
} else if(strcmp(argv[argn], "-r") == 0 && argn + 1 < argc) {
++argn;
referer = argv[argn];
} else if(strcmp(argv[argn], "-u") == 0 && argn + 1 < argc) {
++argn;
user_agent = argv[argn];
} else if(strcmp(argv[argn], "-a") == 0 && argn + 1 < argc) {
++argn;
auth_token = argv[argn];
} else if(strcmp(argv[argn], "-c") == 0 && argn + 1 < argc) {
if(ncookies >= MAX_COOKIES) {
(void) fprintf(stderr, "%s: too many cookies\n", argv0);
exit (1);
}
++argn;
cookies[ncookies++] = argv[argn];
} else if(strcmp(argv[argn], "-h") == 0 && argn + 2 < argc) {
++argn;
header_name = argv[argn];
++argn;
header_value = argv[argn];
} else if(strcmp(argv[argn], "-v") == 0) {
verbose = 1;
} else {
usage();
}
++argn;
}
if(argn >= argc) {
usage();
}
url = argv[argn];
++argn;
if(argn != argc) {
usage();
}
(void) signal(SIGALRM, sigcatch);
status = getURL(url, referer, user_agent, auth_token, ncookies, cookies, header_name, header_value);
if(status == 200) {
exit(0);
} else if(status == 0) {
exit(1);
} else {
exit(status);
}
}

+ 79
- 0
webpost.c 파일 보기

@ -0,0 +1,79 @@
/**
* @PROJECT WebGet Downloader
* @COPYRIGHT See COPYING in the top level directory
* @FILE webpost.c
* @PURPOSE Web POST Operation Dumper
* @DEVELOPERS Al Globus <globus@nas.nasa.gov>
* Rafal Kupiec <belliash@asiotec.eu.org>
* Jef Poskanzer <jef@mail.acme.com>
*/
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include "libweb.h"
int main(int argc, char** argv) {
int argn;
char* referer;
char* user_agent;
char* auth_token;
int ncookies;
char* cookies[MAX_COOKIES];
char* header_name;
char* header_value;
argv0 = argv[0];
argn = 1;
timeout = 60;
referer = (char*) 0;
user_agent = "http_post";
auth_token = (char*) 0;
ncookies = 0;
header_name = (char*) 0;
header_value = (char*) 0;
verbose = 0;
while(argn < argc && argv[argn][0] == '-' && argv[argn][1] != '\0') {
if(strcmp(argv[argn], "-t") == 0 && argn + 1 < argc) {
++argn;
timeout = atoi(argv[argn]);
} else if(strcmp(argv[argn], "-r") == 0 && argn + 1 < argc) {
++argn;
referer = argv[argn];
} else if(strcmp(argv[argn], "-u") == 0 && argn + 1 < argc) {
++argn;
user_agent = argv[argn];
} else if(strcmp(argv[argn], "-a") == 0 && argn + 1 < argc) {
++argn;
auth_token = argv[argn];
} else if(strcmp(argv[argn], "-c") == 0 && argn + 1 < argc) {
if(ncookies >= MAX_COOKIES) {
(void) fprintf(stderr, "%s: too many cookies\n", argv0);
exit(1);
}
++argn;
cookies[ncookies++] = argv[argn];
} else if(strcmp(argv[argn], "-h") == 0 && argn + 2 < argc) {
++argn;
header_name = argv[argn];
++argn;
header_value = argv[argn];
} else if(strcmp(argv[argn], "-v") == 0) {
verbose = 1;
} else {
usage();
}
++argn;
}
if(argn >= argc) {
usage();
}
url = argv[argn];
++argn;
(void) signal(SIGALRM, sigcatch);
postURL(url, referer, user_agent, auth_token, ncookies, cookies, header_name, header_value, &(argv[argn]), argc - argn);
exit(0);
}

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