/*
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* Copyright (c) 2010-2019 Belledonne Communications SARL.
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*
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* This file is part of oRTP.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef STR_UTILS_H
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#define STR_UTILS_H
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#include <ortp/port.h>
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#if defined(ORTP_TIMESTAMP)
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#include <time.h>
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#endif
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#ifndef MIN
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#define MIN(a,b) (((a)>(b)) ? (b) : (a))
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#endif
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#ifndef MAX
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#define MAX(a,b) (((a)>(b)) ? (a) : (b))
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#endif
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#define return_if_fail(expr) if (!(expr)) {printf("%s:%i- assertion"#expr "failed\n",__FILE__,__LINE__); return;}
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#define return_val_if_fail(expr,ret) if (!(expr)) {printf("%s:%i- assertion" #expr "failed\n",__FILE__,__LINE__); return (ret);}
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typedef struct ortp_recv_addr {
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int family;
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union {
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struct in_addr ipi_addr;
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struct in6_addr ipi6_addr;
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} addr;
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unsigned short port;
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} ortp_recv_addr_t;
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typedef struct ortp_recv_addr_map {
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struct sockaddr_storage ss;
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ortp_recv_addr_t recv_addr;
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uint64_t ts;
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} ortp_recv_addr_map_t;
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typedef struct msgb
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{
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struct msgb *b_prev;
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struct msgb *b_next;
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struct msgb *b_cont;
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struct datab *b_datap;
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unsigned char *b_rptr;
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unsigned char *b_wptr;
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uint32_t reserved1;
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uint32_t reserved2;
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struct timeval timestamp;
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ortp_recv_addr_t recv_addr; /*contains the destination address of incoming packets, used for ICE processing*/
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struct sockaddr_storage net_addr; /*source address of incoming packet, or dest address of outgoing packet, used only by simulator and modifiers*/
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socklen_t net_addrlen; /*source (dest) address of incoming (outgoing) packet length used by simulator and modifiers*/
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uint8_t ttl_or_hl;
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} mblk_t;
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typedef struct datab dblk_t;
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typedef struct _queue
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{
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mblk_t _q_stopper;
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int q_mcount; /*number of packet in the q */
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} queue_t;
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#ifdef __cplusplus
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extern "C" {
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#endif
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ORTP_PUBLIC void dblk_ref(dblk_t *d);
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ORTP_PUBLIC void dblk_unref(dblk_t *d);
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ORTP_PUBLIC unsigned char * dblk_base(dblk_t *db);
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ORTP_PUBLIC unsigned char * dblk_lim(dblk_t *db);
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ORTP_PUBLIC int dblk_ref_value(dblk_t *db);
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ORTP_PUBLIC void qinit(queue_t *q);
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ORTP_PUBLIC void putq(queue_t *q, mblk_t *m);
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ORTP_PUBLIC mblk_t * getq(queue_t *q);
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ORTP_PUBLIC void insq(queue_t *q,mblk_t *emp, mblk_t *mp);
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ORTP_PUBLIC void remq(queue_t *q, mblk_t *mp);
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ORTP_PUBLIC mblk_t * peekq(queue_t *q);
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/* remove and free all messages in the q */
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#define FLUSHALL 0
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ORTP_PUBLIC void flushq(queue_t *q, int how);
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ORTP_PUBLIC void mblk_init(mblk_t *mp);
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ORTP_PUBLIC void mblk_meta_copy(const mblk_t *source, mblk_t *dest);
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/* allocates a mblk_t, that points to a datab_t, that points to a buffer of size size. */
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ORTP_PUBLIC mblk_t *allocb(size_t size, int unused);
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#define BPRI_MED 0
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/* allocates a mblk_t, that points to a datab_t, that points to buf; buf will be freed using freefn */
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ORTP_PUBLIC mblk_t *esballoc(uint8_t *buf, size_t size, int pri, void (*freefn)(void*) );
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/* frees a mblk_t, and if the datab ref_count is 0, frees it and the buffer too */
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ORTP_PUBLIC void freeb(mblk_t *m);
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/* frees recursively (follow b_cont) a mblk_t, and if the datab
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ref_count is 0, frees it and the buffer too */
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ORTP_PUBLIC void freemsg(mblk_t *mp);
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/* duplicates a mblk_t , buffer is not duplicated*/
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ORTP_PUBLIC mblk_t *dupb(mblk_t *m);
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/* duplicates a complex mblk_t, buffer is not duplicated */
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ORTP_PUBLIC mblk_t *dupmsg(mblk_t* m);
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/* returns the size of data of a message */
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ORTP_PUBLIC size_t msgdsize(const mblk_t *mp);
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/* concatenates all fragment of a complex message*/
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ORTP_PUBLIC void msgpullup(mblk_t *mp,size_t len);
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/* duplicates a single message, but with buffer included */
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ORTP_PUBLIC mblk_t *copyb(const mblk_t *mp);
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/* duplicates a complex message with buffer included */
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ORTP_PUBLIC mblk_t *copymsg(const mblk_t *mp);
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ORTP_PUBLIC mblk_t * appendb(mblk_t *mp, const char *data, size_t size, bool_t pad);
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ORTP_PUBLIC void msgappend(mblk_t *mp, const char *data, size_t size, bool_t pad);
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ORTP_PUBLIC mblk_t *concatb(mblk_t *mp, mblk_t *newm);
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/*Make sure the message has a unique owner, if not duplicate the underlying data buffer so that it can be changed without impacting others.
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Note that in case of copy, the message will be un-fragmented, exactly the way msgpullup() does. Always returns mp.*/
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ORTP_PUBLIC mblk_t * msgown(mblk_t *mp);
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#define qempty(q) (&(q)->_q_stopper==(q)->_q_stopper.b_next)
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#define qfirst(q) ((q)->_q_stopper.b_next!=&(q)->_q_stopper ? (q)->_q_stopper.b_next : NULL)
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#define qbegin(q) ((q)->_q_stopper.b_next)
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#define qlast(q) ((q)->_q_stopper.b_prev!=&(q)->_q_stopper ? (q)->_q_stopper.b_prev : NULL)
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#define qend(q,mp) ((mp)==&(q)->_q_stopper)
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#define qnext(q,mp) ((mp)->b_next)
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typedef struct _msgb_allocator{
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queue_t q;
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int max_blocks;
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}msgb_allocator_t;
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ORTP_PUBLIC void msgb_allocator_init(msgb_allocator_t *pa);
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/* Set a maximum number of blocks that can be managed by the allocator.
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Only blocks satisfying the "size" argument of msgb_allocator_alloc() are counted.*/
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ORTP_PUBLIC void msgb_allocator_set_max_blocks(msgb_allocator_t *pa, int max_blocks);
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ORTP_PUBLIC mblk_t *msgb_allocator_alloc(msgb_allocator_t *pa, size_t size);
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ORTP_PUBLIC void msgb_allocator_uninit(msgb_allocator_t *pa);
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ORTP_PUBLIC void ortp_recvaddr_to_sockaddr(ortp_recv_addr_t *recvaddr, struct sockaddr *addr, socklen_t *socklen);
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ORTP_PUBLIC void ortp_sockaddr_to_recvaddr(const struct sockaddr * addr, ortp_recv_addr_t * recvaddr);
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#ifdef __cplusplus
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}
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#endif
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#endif
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