mirror of
https://github.com/signalwire/freeswitch.git
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236fe3d131
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@10893 d0543943-73ff-0310-b7d9-9358b9ac24b2
663 lines
15 KiB
C
663 lines
15 KiB
C
/*
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* Copyright (c) 2007, Anthony Minessale II
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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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*
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* * 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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*
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* * 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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*
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* * Neither the name of the original author; nor the names of any contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <esl.h>
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#include <sys/signal.h>
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#ifndef HAVE_GETHOSTBYNAME_R
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extern int gethostbyname_r (const char *__name,
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struct hostent *__result_buf,
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char *__buf, size_t __buflen,
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struct hostent **__result,
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int *__h_errnop);
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#endif
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/* Written by Marc Espie, public domain */
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#define ESL_CTYPE_NUM_CHARS 256
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const short _esl_C_toupper_[1 + ESL_CTYPE_NUM_CHARS] = {
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EOF,
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
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0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
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0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
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0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
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0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
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0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
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0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
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0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
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0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
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0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
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0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57,
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0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
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0x60, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
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'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
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'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
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'X', 'Y', 'Z', 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
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0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
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0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
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0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
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0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
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0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
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0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf,
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0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7,
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0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
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0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7,
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0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
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0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7,
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0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
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0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7,
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0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
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0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
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0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff
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};
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const short *_esl_toupper_tab_ = _esl_C_toupper_;
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int esl_toupper(int c)
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{
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if ((unsigned int)c > 255)
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return(c);
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if (c < -1)
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return EOF;
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return((_esl_toupper_tab_ + 1)[c]);
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}
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const short _esl_C_tolower_[1 + ESL_CTYPE_NUM_CHARS] = {
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EOF,
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
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0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
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0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
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0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
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0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
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0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
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0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
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0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
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0x40, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
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'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
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'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
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'x', 'y', 'z', 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
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0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
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0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
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0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
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0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
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0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
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0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
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0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
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0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
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0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
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0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf,
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0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7,
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0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
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0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7,
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0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
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0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7,
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0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
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0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7,
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0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
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0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
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0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff
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};
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const short *_esl_tolower_tab_ = _esl_C_tolower_;
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int esl_tolower(int c)
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{
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if ((unsigned int)c > 255)
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return(c);
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if (c < -1)
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return EOF;
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return((_esl_tolower_tab_ + 1)[c]);
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}
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const char *esl_stristr(const char *instr, const char *str)
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{
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/*
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** Rev History: 16/07/97 Greg Thayer Optimized
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** 07/04/95 Bob Stout ANSI-fy
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** 02/03/94 Fred Cole Original
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** 09/01/03 Bob Stout Bug fix (lines 40-41) per Fred Bulback
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**
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** Hereby donated to public domain.
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*/
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const char *pptr, *sptr, *start;
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if (!str || !instr)
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return NULL;
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for (start = str; *start; start++) {
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/* find start of pattern in string */
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for (; ((*start) && (esl_toupper(*start) != esl_toupper(*instr))); start++);
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if (!*start)
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return NULL;
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pptr = instr;
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sptr = start;
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while (esl_toupper(*sptr) == esl_toupper(*pptr)) {
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sptr++;
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pptr++;
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/* if end of pattern then pattern was found */
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if (!*pptr)
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return (start);
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if (!*sptr)
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return NULL;
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}
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}
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return NULL;
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}
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static void null_logger(const char *file, const char *func, int line, int level, const char *fmt, ...)
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{
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if (file && func && line && level && fmt) {
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return;
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}
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return;
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}
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static const char *LEVEL_NAMES[] = {
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"EMERG",
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"ALERT",
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"CRIT",
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"ERROR",
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"WARNING",
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"NOTICE",
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"INFO",
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"DEBUG",
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NULL
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};
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static int esl_log_level = 7;
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static const char *cut_path(const char *in)
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{
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const char *p, *ret = in;
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char delims[] = "/\\";
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char *i;
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for (i = delims; *i; i++) {
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p = in;
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while ((p = strchr(p, *i)) != 0) {
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ret = ++p;
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}
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}
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return ret;
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}
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static void default_logger(const char *file, const char *func, int line, int level, const char *fmt, ...)
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{
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const char *fp;
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char data[1024];
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va_list ap;
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if (level < 0 || level > 7) {
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level = 7;
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}
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if (level > esl_log_level) {
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return;
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}
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fp = cut_path(file);
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va_start(ap, fmt);
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vsnprintf(data, sizeof(data), fmt, ap);
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fprintf(stderr, "[%s] %s:%d %s() %s", LEVEL_NAMES[level], file, line, func, data);
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va_end(ap);
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}
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esl_logger_t esl_log = null_logger;
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void esl_global_set_logger(esl_logger_t logger)
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{
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if (logger) {
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esl_log = logger;
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} else {
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esl_log = null_logger;
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}
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}
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void esl_global_set_default_logger(int level)
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{
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if (level < 0 || level > 7) {
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level = 7;
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}
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esl_log = default_logger;
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esl_log_level = level;
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}
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size_t esl_url_encode(const char *url, char *buf, size_t len)
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{
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const char *p;
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size_t x = 0;
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const char urlunsafe[] = "\r\n \"#%&+:;<=>?@[\\]^`{|}";
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const char hex[] = "0123456789ABCDEF";
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if (!buf) {
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return 0;
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}
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if (!url) {
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return 0;
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}
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len--;
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for (p = url; *p; p++) {
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if (x >= len) {
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break;
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}
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if (*p < ' ' || *p > '~' || strchr(urlunsafe, *p)) {
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if ((x + 3) >= len) {
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break;
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}
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buf[x++] = '%';
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buf[x++] = hex[*p >> 4];
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buf[x++] = hex[*p & 0x0f];
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} else {
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buf[x++] = *p;
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}
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}
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buf[x] = '\0';
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return x;
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}
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char *esl_url_decode(char *s)
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{
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char *o;
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unsigned int tmp;
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for (o = s; *s; s++, o++) {
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if (*s == '%' && strlen(s) > 2 && sscanf(s + 1, "%2x", &tmp) == 1) {
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*o = (char) tmp;
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s += 2;
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} else {
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*o = *s;
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}
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}
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*o = '\0';
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return s;
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}
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esl_status_t esl_connect(esl_handle_t *handle, const char *host, esl_port_t port, const char *password)
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{
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struct hostent *result;
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char sendbuf[256];
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char recvbuf[256];
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int rval;
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const char *hval;
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handle->sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
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if (handle->sock == ESL_SOCK_INVALID) {
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snprintf(handle->err, sizeof(handle->err), "Socket Error");
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return ESL_FAIL;
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}
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memset(&handle->sockaddr, 0, sizeof(handle->sockaddr));
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handle->sockaddr.sin_family = AF_INET;
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handle->sockaddr.sin_port = htons(port);
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memset(&handle->hostent, 0, sizeof(handle->hostent));
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#ifdef HAVE_GETHOSTBYNAME_R_FIVE
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rval = gethostbyname_r(host, &handle->hostent, handle->hostbuf, sizeof(handle->hostbuf), &handle->errno);
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result = handle->hostent;
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#else
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rval = gethostbyname_r(host, &handle->hostent, handle->hostbuf, sizeof(handle->hostbuf), &result, &handle->errno);
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#endif
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if (rval) {
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strerror_r(handle->errno, handle->err, sizeof(handle->err));
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goto fail;
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}
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memcpy(&handle->sockaddr.sin_addr, result->h_addr, result->h_length);
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rval = connect(handle->sock, (struct sockaddr *) &handle->sockaddr, sizeof(handle->sockaddr));
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if (rval) {
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snprintf(handle->err, sizeof(handle->err), "Socket Connection Error");
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goto fail;
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}
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handle->connected = 1;
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if (esl_recv(handle)) {
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snprintf(handle->err, sizeof(handle->err), "Connection Error");
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goto fail;
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}
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hval = esl_event_get_header(handle->last_event, "content-type");
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if (strcasecmp(hval, "auth/request")) {
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snprintf(handle->err, sizeof(handle->err), "Connection Error");
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goto fail;
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}
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snprintf(sendbuf, sizeof(sendbuf), "auth %s\n\n", password);
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esl_send(handle, sendbuf);
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if (esl_recv(handle)) {
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snprintf(handle->err, sizeof(handle->err), "Connection Error");
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goto fail;
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}
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hval = esl_event_get_header(handle->last_event, "reply-text");
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if (strcasecmp(hval, "+OK accepted")) {
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snprintf(handle->err, sizeof(handle->err), "Connection Error");
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goto fail;
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}
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return ESL_SUCCESS;
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fail:
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esl_disconnect(handle);
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return ESL_FAIL;
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}
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esl_status_t esl_disconnect(esl_handle_t *handle)
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{
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esl_event_safe_destroy(&handle->last_event);
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esl_event_safe_destroy(&handle->last_ievent);
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esl_event_safe_destroy(&handle->info_event);
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if (handle->sock != ESL_SOCK_INVALID) {
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close(handle->sock);
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handle->sock = ESL_SOCK_INVALID;
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return ESL_SUCCESS;
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}
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handle->connected = 0;
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return ESL_FAIL;
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}
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esl_status_t esl_recv(esl_handle_t *handle)
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{
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char *c;
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esl_ssize_t rrval;
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int crc = 0;
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esl_event_t *revent = NULL;
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char *beg;
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char *hname, *hval;
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char *col;
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char *cl;
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ssize_t len;
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int zc = 0;
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esl_event_safe_destroy(&handle->last_event);
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memset(handle->header_buf, 0, sizeof(handle->header_buf));
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c = handle->header_buf;
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beg = c;
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while(handle->connected) {
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rrval = recv(handle->sock, c, 1, 0);
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if (rrval == 0) {
|
|
if (++zc >= 100) {
|
|
esl_disconnect(handle);
|
|
return ESL_FAIL;
|
|
}
|
|
} else if (rrval < 0) {
|
|
strerror_r(handle->errno, handle->err, sizeof(handle->err));
|
|
goto fail;
|
|
} else {
|
|
zc = 0;
|
|
|
|
if (*c == '\n') {
|
|
if (++crc == 2) {
|
|
break;
|
|
}
|
|
|
|
if (!revent) {
|
|
esl_event_create(&revent, ESL_EVENT_COMMAND);
|
|
}
|
|
|
|
hname = beg;
|
|
hval = col = NULL;
|
|
|
|
if (hname && (col = strchr(hname, ':'))) {
|
|
hval = col + 1;
|
|
*col = '\0';
|
|
while(*hval == ' ') hval++;
|
|
}
|
|
|
|
*c = '\0';
|
|
|
|
if (hname && hval) {
|
|
if (handle->debug > 1) {
|
|
esl_log(ESL_LOG_DEBUG, "RECV HEADER [%s] = [%s]\n", hname, hval);
|
|
}
|
|
esl_event_add_header_string(revent, ESL_STACK_BOTTOM, hname, hval);
|
|
}
|
|
|
|
beg = c+1;
|
|
|
|
|
|
} else {
|
|
crc = 0;
|
|
}
|
|
|
|
c++;
|
|
}
|
|
}
|
|
|
|
if (!revent) {
|
|
goto fail;
|
|
}
|
|
|
|
if ((cl = esl_event_get_header(revent, "content-length"))) {
|
|
char *body;
|
|
esl_ssize_t sofar = 0;
|
|
|
|
len = atol(cl);
|
|
body = malloc(len+1);
|
|
esl_assert(body);
|
|
*(body + len) = '\0';
|
|
|
|
do {
|
|
esl_ssize_t r;
|
|
if ((r = recv(handle->sock, body + sofar, len - sofar, 0)) < 0) {
|
|
strerror_r(handle->errno, handle->err, sizeof(handle->err));
|
|
goto fail;
|
|
}
|
|
sofar += r;
|
|
} while (sofar < len);
|
|
|
|
revent->body = body;
|
|
}
|
|
|
|
|
|
|
|
handle->last_event = revent;
|
|
|
|
if (handle->last_event) {
|
|
const char *hval = esl_event_get_header(handle->last_event, "reply-text");
|
|
|
|
if (!esl_strlen_zero(hval)) {
|
|
strncpy(handle->last_reply, hval, sizeof(handle->last_reply));
|
|
}
|
|
|
|
hval = esl_event_get_header(handle->last_event, "content-type");
|
|
|
|
if (!esl_strlen_zero(hval) && !strcasecmp(hval, "text/event-plain") && handle->last_event->body) {
|
|
const char *en;
|
|
esl_event_types_t et = ESL_EVENT_COMMAND;
|
|
char *body = strdup(handle->last_event->body);
|
|
char *beg;
|
|
char *hname, *hval;
|
|
char *col;
|
|
char *cl;
|
|
ssize_t len;
|
|
char *c;
|
|
|
|
esl_event_safe_destroy(&handle->last_ievent);
|
|
|
|
if ((en = esl_stristr("event-name:", body))) {
|
|
en++;
|
|
while(*en == ' ') en++;
|
|
if (en) {
|
|
esl_name_event(en, &et);
|
|
}
|
|
}
|
|
|
|
esl_event_create(&handle->last_ievent, et);
|
|
|
|
beg = body;
|
|
|
|
while(beg) {
|
|
if (!(c = strchr(beg, '\n'))) {
|
|
break;
|
|
}
|
|
|
|
hname = beg;
|
|
hval = col = NULL;
|
|
|
|
if (hname && (col = strchr(hname, ':'))) {
|
|
hval = col + 1;
|
|
*col = '\0';
|
|
while(*hval == ' ') hval++;
|
|
}
|
|
|
|
*c = '\0';
|
|
|
|
if (hname && hval) {
|
|
esl_url_decode(hval);
|
|
|
|
if (handle->debug > 1) {
|
|
esl_log(ESL_LOG_DEBUG, "RECV INNER HEADER [%s] = [%s]\n", hname, hval);
|
|
}
|
|
esl_event_add_header_string(handle->last_ievent, ESL_STACK_BOTTOM, hname, hval);
|
|
}
|
|
|
|
beg = c + 1;
|
|
}
|
|
|
|
free(body);
|
|
|
|
if ((cl = esl_event_get_header(handle->last_ievent, "content-length"))) {
|
|
esl_ssize_t sofar = 0;
|
|
|
|
len = atol(cl);
|
|
body = malloc(len+1);
|
|
esl_assert(body);
|
|
*(body + len) = '\0';
|
|
|
|
do {
|
|
esl_ssize_t r;
|
|
if ((r = recv(handle->sock, body + sofar, len - sofar, 0)) < 0) {
|
|
strerror_r(handle->errno, handle->err, sizeof(handle->err));
|
|
goto fail;
|
|
}
|
|
sofar += r;
|
|
} while (sofar < len);
|
|
|
|
handle->last_ievent->body = body;
|
|
}
|
|
|
|
|
|
if (handle->debug) {
|
|
char *foo;
|
|
esl_event_serialize(handle->last_ievent, &foo, ESL_FALSE);
|
|
esl_log(ESL_LOG_DEBUG, "RECV EVENT\n%s\n", foo);
|
|
free(foo);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
|
|
if (handle->debug) {
|
|
char *foo;
|
|
esl_event_serialize(handle->last_event, &foo, ESL_FALSE);
|
|
esl_log(ESL_LOG_DEBUG, "RECV MESSAGE\n%s\n", foo);
|
|
free(foo);
|
|
}
|
|
|
|
return ESL_SUCCESS;
|
|
|
|
fail:
|
|
|
|
esl_disconnect(handle);
|
|
return ESL_FAIL;
|
|
|
|
}
|
|
|
|
esl_status_t esl_send(esl_handle_t *handle, const char *cmd)
|
|
{
|
|
const char *e = cmd + strlen(cmd) -1;
|
|
|
|
if (handle->debug) {
|
|
esl_log(ESL_LOG_DEBUG, "SEND\n%s\n", cmd);
|
|
}
|
|
|
|
send(handle->sock, cmd, strlen(cmd), 0);
|
|
|
|
if (!(*e == '\n' && *(e-1) == '\n')) {
|
|
send(handle->sock, "\n\n", 2, 0);
|
|
}
|
|
}
|
|
|
|
|
|
esl_status_t esl_send_recv(esl_handle_t *handle, const char *cmd)
|
|
{
|
|
esl_send(handle, cmd);
|
|
esl_recv(handle);
|
|
}
|
|
|
|
|
|
|
|
|