path: root/protocols/jabber/lib.h

#include <string.h>
#include <stdlib.h>
#include <sys/types.h>
#include <stdio.h>
#include <setjmp.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <signal.h>
#include <stdarg.h>
#include <ctype.h>
#include <time.h>

#include "xmlparse.h"

int j_strcmp(const char *a, const char *b);

/*
**  Arrange to use either varargs or stdargs
*/

#define MAXSHORTSTR	203		/* max short string length */
#define QUAD_T	unsigned long long

#if defined(__STDC__) || defined(_WIN32)

#include <stdarg.h>

# define VA_LOCAL_DECL	va_list ap;
# define VA_START(f)	va_start(ap, f)
# define VA_END		va_end(ap)

#else /* __STDC__ */

# include <varargs.h>

# define VA_LOCAL_DECL	va_list ap;
# define VA_START(f)	va_start(ap)
# define VA_END		va_end(ap)

#endif /* __STDC__ */


#ifndef INCL_LIB_H
#define INCL_LIB_H

#ifdef __cplusplus
extern "C" {
#endif

/* --------------------------------------------------------- */
/*                                                           */
/* Pool-based memory management routines                     */
/*                                                           */
/* --------------------------------------------------------- */

#undef POOL_DEBUG
/*
 flip these, this should be a prime number for top # of pools debugging
#define POOL_DEBUG 40009 
*/

/* pheap - singular allocation of memory */
struct pheap
{
    void *block;
    int size, used;
};

/* pool_cleaner - callback type which is associated
   with a pool entry; invoked when the pool entry is 
   free'd */
typedef void (*pool_cleaner)(void *arg);

/* pfree - a linked list node which stores an
   allocation chunk, plus a callback */
struct pfree
{
    pool_cleaner f;
    void *arg;
    struct pheap *heap;
    struct pfree *next;
};

/* pool - base node for a pool. Maintains a linked list
   of pool entries (pfree) */
typedef struct pool_struct
{
    int size;
    struct pfree *cleanup;
    struct pheap *heap;
#ifdef POOL_DEBUG
    char name[8], zone[32];
    int lsize;
} _pool, *pool;
#define pool_new() _pool_new(ZONE) 
#define pool_heap(i) _pool_new_heap(i,ZONE) 
#else
} _pool, *pool;
#define pool_heap(i) _pool_new_heap(i,NULL) 
#define pool_new() _pool_new(NULL)
#endif

pool _pool_new(char *zone); /* new pool :) */
pool _pool_new_heap(int size, char *zone); /* creates a new memory pool with an initial heap size */
void *pmalloc(pool p, int size); /* wrapper around malloc, takes from the pool, cleaned up automatically */
void *pmalloc_x(pool p, int size, char c); /* Wrapper around pmalloc which prefils buffer with c */
void *pmalloco(pool p, int size); /* YAPW for zeroing the block */
char *pstrdup(pool p, const char *src); /* wrapper around strdup, gains mem from pool */
void pool_stat(int full); /* print to stderr the changed pools and reset */
void pool_cleanup(pool p, pool_cleaner f, void *arg); /* calls f(arg) before the pool is freed during cleanup */
void pool_free(pool p); /* calls the cleanup functions, frees all the data on the pool, and deletes the pool itself */




/* --------------------------------------------------------- */
/*                                                           */
/* Socket helper stuff                                       */
/*                                                           */
/* --------------------------------------------------------- */
#ifndef MAXHOSTNAMELEN
#define MAXHOSTNAMELEN 64
#endif

#define NETSOCKET_SERVER 0
#define NETSOCKET_CLIENT 1
#define NETSOCKET_UDP 2

#ifndef WIN32
int make_netsocket(u_short port, char *host, int type);
struct in_addr *make_addr(char *host);
int set_fd_close_on_exec(int fd, int flag);
#endif


/* --------------------------------------------------------- */
/*                                                           */
/* Hashtable functions                                       */
/*                                                           */
/* --------------------------------------------------------- */
typedef struct xhn_struct
{
    struct xhn_struct *next;
    const char *key;
    void *val;
} *xhn, _xhn;

char *strescape(pool p, char *);


/* --------------------------------------------------------- */
/*                                                           */
/* String pools (spool) functions                            */
/*                                                           */
/* --------------------------------------------------------- */
struct spool_node
{
    char *c;
    struct spool_node *next;
};

typedef struct spool_struct
{
    pool p;
    int len;
    struct spool_node *last;
    struct spool_node *first;
} *spool;

spool spool_new(pool p); /* create a string pool */
void spooler(spool s, ...); /* append all the char * args to the pool, terminate args with s again */
char *spool_print(spool s); /* return a big string */
void spool_add(spool s, char *str); /* add a single char to the pool */


/* --------------------------------------------------------- */
/*                                                           */
/* xmlnodes - Document Object Model                          */
/*                                                           */
/* --------------------------------------------------------- */
#define NTYPE_TAG    0
#define NTYPE_ATTRIB 1
#define NTYPE_CDATA  2

#define NTYPE_LAST   2
#define NTYPE_UNDEF  -1

/* -------------------------------------------------------------------------- 
   Node structure. Do not use directly! Always use accessor macros 
   and methods!
   -------------------------------------------------------------------------- */
typedef struct xmlnode_t
{
     char*               name;
     unsigned short      type;
     char*               data;
     int                 data_sz;
     int                 complete;
     pool               p;
     struct xmlnode_t*  parent;
     struct xmlnode_t*  firstchild; 
     struct xmlnode_t*  lastchild;
     struct xmlnode_t*  prev; 
     struct xmlnode_t*  next;
     struct xmlnode_t*  firstattrib;
     struct xmlnode_t*  lastattrib;
} _xmlnode, *xmlnode;

/* Node creation routines */
xmlnode  xmlnode_wrap(xmlnode x,const char* wrapper);
xmlnode  xmlnode_new_tag(const char* name);
xmlnode  xmlnode_new_tag_pool(pool p, const char* name);
xmlnode  xmlnode_insert_tag(xmlnode parent, const char* name); 
xmlnode  xmlnode_insert_cdata(xmlnode parent, const char* CDATA, unsigned int size);
xmlnode  xmlnode_insert_tag_node(xmlnode parent, xmlnode node);
xmlnode  xmlnode_str(char *str, int len);
xmlnode  xmlnode_dup(xmlnode x); /* duplicate x */
xmlnode  xmlnode_dup_pool(pool p, xmlnode x);

/* Node Memory Pool */
pool xmlnode_pool(xmlnode node);

/* Node editing */
void xmlnode_hide(xmlnode child);
void xmlnode_hide_attrib(xmlnode parent, const char *name);

/* Node deletion routine, also frees the node pool! */
void xmlnode_free(xmlnode node);

/* Locates a child tag by name and returns it */
xmlnode  xmlnode_get_tag(xmlnode parent, const char* name);
char* xmlnode_get_tag_data(xmlnode parent, const char* name);

/* Attribute accessors */
void     xmlnode_put_attrib(xmlnode owner, const char* name, const char* value);
char*    xmlnode_get_attrib(xmlnode owner, const char* name);
void     xmlnode_put_expat_attribs(xmlnode owner, const char** atts);

/* Bastard am I, but these are fun for internal use ;-) */
void     xmlnode_put_vattrib(xmlnode owner, const char* name, void *value);
void*    xmlnode_get_vattrib(xmlnode owner, const char* name);

/* Node traversal routines */
xmlnode  xmlnode_get_firstchild(xmlnode parent);
xmlnode  xmlnode_get_lastchild(xmlnode parent);
xmlnode  xmlnode_get_nextsibling(xmlnode sibling);
xmlnode  xmlnode_get_prevsibling(xmlnode sibling);
xmlnode  xmlnode_get_parent(xmlnode node);

/* Node information routines */
char*    xmlnode_get_name(xmlnode node);
char*    xmlnode_get_data(xmlnode node);

int      xmlnode_has_children(xmlnode node);

/* Node-to-string translation */
char*    xmlnode2str(xmlnode node);

/********** END OLD libxode.h BEGIN OLD jabber.h *************/


// #define KARMA_DEBUG
// default to disable karma 
#define KARMA_READ_MAX(k) (abs(k)*100) /* how much you are allowed to read off the sock */
#define KARMA_INIT 5   /* internal "init" value */
#define KARMA_HEARTBEAT 2 /* seconds to register for heartbeat */
#define KARMA_MAX 10     /* total max karma you can have */
#define KARMA_INC 1      /* how much to increment every KARMA_HEARTBEAT seconds */
#define KARMA_DEC 0      /* how much to penalize for reading KARMA_READ_MAX in
                            KARMA_HEARTBEAT seconds */
#define KARMA_PENALTY -5 /* where you go when you hit 0 karma */
#define KARMA_RESTORE 5  /* where you go when you payed your penelty or INIT */
#define KARMA_RESETMETER 0 /* Reset byte meter on restore default is falst */

struct karma
{
    int init; /* struct initialized */
    int reset_meter; /* reset the byte meter on restore */
    int val; /* current karma value */
    long bytes; /* total bytes read (in that time period) */
    int max;  /* max karma you can have */
    int inc,dec; /* how much to increment/decrement */
    int penalty,restore; /* what penalty (<0) or restore (>0) */
    time_t last_update; /* time this was last incremented */
};

struct karma *karma_new(pool p); /* creates a new karma object, with default values */
void karma_copy(struct karma *new, struct karma *old); /* makes a copy of old in new */
void karma_increment(struct karma *k);          /* inteligently increments karma */
void karma_decrement(struct karma *k, long bytes_read); /* inteligently decrements karma */
int karma_check(struct karma *k,long bytes_read); /* checks to see if we have good karma */



/* --------------------------------------------------------- */
/*                                                           */
/* Namespace constants                                       */
/*                                                           */
/* --------------------------------------------------------- */
#define NSCHECK(x,n) (j_strcmp(xmlnode_get_attrib(x,"xmlns"),n) == 0)

#define NS_CLIENT    "jabber:client"
#define NS_SERVER    "jabber:server"
#define NS_AUTH      "jabber:iq:auth"
#define NS_REGISTER  "jabber:iq:register"
#define NS_ROSTER    "jabber:iq:roster"
#define NS_OFFLINE   "jabber:x:offline"
#define NS_AGENT     "jabber:iq:agent"
#define NS_AGENTS    "jabber:iq:agents"
#define NS_DELAY     "jabber:x:delay"
#define NS_VERSION   "jabber:iq:version"
#define NS_TIME      "jabber:iq:time"
#define NS_VCARD     "vcard-temp"
#define NS_PRIVATE   "jabber:iq:private"
#define NS_SEARCH    "jabber:iq:search"
#define NS_OOB       "jabber:iq:oob"
#define NS_XOOB      "jabber:x:oob"
#define NS_ADMIN     "jabber:iq:admin"
#define NS_FILTER    "jabber:iq:filter"
#define NS_AUTH_0K   "jabber:iq:auth:0k"
#define NS_BROWSE    "jabber:iq:browse"
#define NS_EVENT     "jabber:x:event"
#define NS_CONFERENCE "jabber:iq:conference"
#define NS_SIGNED    "jabber:x:signed"
#define NS_ENCRYPTED "jabber:x:encrypted"
#define NS_GATEWAY   "jabber:iq:gateway"
#define NS_LAST      "jabber:iq:last"
#define NS_ENVELOPE  "jabber:x:envelope"
#define NS_EXPIRE    "jabber:x:expire"
#define NS_XHTML     "http://www.w3.org/1999/xhtml"

#define NS_XDBGINSERT "jabber:xdb:ginsert"
#define NS_XDBNSLIST  "jabber:xdb:nslist"



#ifdef __cplusplus
}
#endif

#endif	/* INCL_LIB_H */