str.cc File Reference

utilities for string handling More...

#include <jabberdlib.h>

Functions
char *	j_strdup (const char *str)
char *	j_strcat (char *dest, char *txt)
int	j_strcmp (const char *a, const char *b)
int	j_strcasecmp (const char *a, const char *b)
int	j_strncmp (const char *a, const char *b, int i)
int	j_strncasecmp (const char *a, const char *b, int i)
int	j_strlen (const char *a)
int	j_atoi (const char *a, int def)
char *	strunescape (pool p, char *buf)
std::string	strescape (std::string s)
char *	strescape (pool p, char *buf)
char *	zonestr (char const *file, int line)

---

Detailed Description

utilities for string handling

This file contains utility functions for string handling:

• NULL pointer save versions of many functions in string.c
• string spools
• functions to (un)escape strings for XML usage

String spools allow to create a string by concatenating several smaller strings and the spool implementation is allocating the neccessary memory using memory pools.

---

Function Documentation

int j_atoi	(	const char *	a,
		int	def
	)

Referenced by _js_authreg_register(), dialback(), dialback_check_settings(), dialback_in_read(), dialback_out_read(), dnsrv(), js_packet(), jsm(), mio_init(), pthsock_client(), xdb_file(), and xhash_from_xml().

int j_strcasecmp	(	const char *	a,
		const char *	b
	)

NULL pointer save version of strcasecmp()

If one of the parameters contains a NULL pointer, the string is considered to be unequal

Parameters:

	a	the one string
	b	the other string

Returns:

0 if the strings are equal, non zero else

Referenced by dialback_in_read_db(), dialback_out_read(), and xmlnode_select_by_lang().

char* j_strcat	(	char *	dest,
		char *	txt
	)

NULL pointer save version of strcat()

Note:

the return value of j_strcat() is not compatible with the return value of strcat()

Todo:

check if the behaviour of the return value is intended

Parameters:

	dest	where to append the string
	txt	what to append

Returns:

dest if txt contains a NULL pointer, pointer to the terminating zero byte of the result else

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

NULL pointer save version of strcmp

If one of the parameters contains a NULL pointer, the string is considered to be unequal.

Note:

the return value is not compatible with strcmp()

Parameters:

	a	the one string
	b	the other string

Returns:

0 if the strings are equal, -1 if the strings are not equal

Referenced by _js_routed_packet(), _js_routed_session_control_packet(), _xdb_convert_hostspool(), acl_get_users(), deliver_fail(), dialback_check_settings(), dialback_in_read(), dialback_in_read_db(), dialback_in_verify(), dialback_out_packet(), dialback_out_read(), dialback_out_read_db(), dialback_packets(), dnsrv(), dnsrv_deliver(), expat_startElement(), xmppd::instance_base::get_instance_config(), jlimit_check(), jpacket_subtype(), js_bounce_xmpp(), js_sc_session_new(), js_session_end(), js_session_get(), js_session_new(), jsm(), jutil_regkey(), log_get_facility(), log_get_level(), main(), mio_ssl_init(), mod_dynamic(), mod_log(), mod_presence(), pthsock_client(), xdb_file_load(), xdb_file_phandler(), xdb_sql(), xmlnode_get_attrib(), xmlnode_get_tag(), xmlnode_get_tags(), xmlnode_insert_tag_ns(), xmlnode_new_tag_pool(), xmlnode_new_tag_pool_ns(), xmlnode_put_attrib(), xmlnode_put_attrib_ns(), xmlnode_put_expat_attribs(), and xstream_parse_error().

char* j_strdup

(

const char *

str

)

NULL pointer save version of strdup()

Parameters:

str

the string the should be duplicated

Returns:

the duplicated string

int j_strlen

(

const char *

a

)

NULL pointer save version of strlen

If the parameter contains a NULL pointer, 0 is returned

Parameters:

a

the string for which the length should be calculated

Returns:

0 if a==NULL, length of the string else

Referenced by dialback_in_read_db(), js_session_get(), jutil_msgnew(), jutil_presnew(), log_generic(), logger(), main(), srv_lookup(), xdb_file_phandler(), and xmlnode2file_limited().

int j_strncasecmp	(	const char *	a,
		const char *	b,
		int	i
	)

NULL pointer save version of strncasecmp()

If one of the parameters contains a NULL pointer, the string is considered to be unequal

Parameters:

	a	the first string
	b	the second string
	i	how many characters to compare at most

Returns:

0 if the strings are equal (within the given length limitation), non zero else

int j_strncmp	(	const char *	a,
		const char *	b,
		int	i
	)

NULL pointer save version of strncmp()

If one of the parameters contains a NULL pointer, the string is considered to be unequal

Parameters:

	a	the first string
	b	the second string
	i	how many characters to compare at most

Returns:

0 if the strings are equal (within the given length limitation), non zero else

Referenced by dialback_check_settings(), js_session_get(), xmlnode_get_attrib(), xmlnode_hide_attrib(), and xmlnode_put_attrib().

char* strescape	(	pool	p,
		char *	buf
	)

References pmalloc().

Referenced by xstream_header_char().

std::string strescape

(

std::string

s

)

escape a string to be print as XML

Parameters:

s

the original string

Returns:

the string with &, ', , < and > replaced with their entity representation

char* strunescape	(	pool	p,
		char *	buf
	)

References pmalloc().

char* zonestr	(	char const *	file,
		int	line
	)