fe6d937978
MFH (r266139-r266143, r266145, r266149, r266150): fix props MFH (r266179, r266180, r266193, r266238, r266777): misc cleanup MFH (r266863): create and use /var/unbound/conf.d MFH (r268839): import unblock-lan-zones patch from upstream MFH (r268840): fix reverse lookups on private networks MFH (r268883): avoid spamming source tree during build PR: 190739 (for r268883)
185 lines
6.4 KiB
C
185 lines
6.4 KiB
C
/*
|
|
* parse.h
|
|
*
|
|
* a Net::DNS like library for C
|
|
* LibDNS Team @ NLnet Labs
|
|
* (c) NLnet Labs, 2005-2006
|
|
* See the file LICENSE for the license
|
|
*/
|
|
|
|
#ifndef LDNS_PARSE_H
|
|
#define LDNS_PARSE_H
|
|
|
|
struct sldns_buffer;
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#define LDNS_PARSE_SKIP_SPACE "\f\n\r\v"
|
|
#define LDNS_PARSE_NORMAL " \f\n\r\t\v"
|
|
#define LDNS_PARSE_NO_NL " \t"
|
|
#define LDNS_MAX_LINELEN 10230
|
|
#define LDNS_MAX_KEYWORDLEN 32
|
|
|
|
|
|
/**
|
|
* \file
|
|
*
|
|
* Contains some low-level parsing functions, mostly used in the _frm_str
|
|
* family of functions.
|
|
*/
|
|
|
|
/**
|
|
* different type of directives in zone files
|
|
* We now deal with $TTL, $ORIGIN and $INCLUDE.
|
|
* The latter is not implemented in ldns (yet)
|
|
*/
|
|
enum sldns_enum_directive
|
|
{
|
|
LDNS_DIR_TTL,
|
|
LDNS_DIR_ORIGIN,
|
|
LDNS_DIR_INCLUDE
|
|
};
|
|
typedef enum sldns_enum_directive sldns_directive;
|
|
|
|
/**
|
|
* returns a token/char from the stream F.
|
|
* This function deals with ( and ) in the stream,
|
|
* and ignores them when encountered
|
|
* \param[in] *f the file to read from
|
|
* \param[out] *token the read token is put here
|
|
* \param[in] *delim chars at which the parsing should stop
|
|
* \param[in] *limit how much to read. If 0 the builtin maximum is used
|
|
* \return 0 on error of EOF of the stream F. Otherwise return the length of what is read
|
|
*/
|
|
ssize_t sldns_fget_token(FILE *f, char *token, const char *delim, size_t limit);
|
|
|
|
/**
|
|
* returns a token/char from the stream F.
|
|
* This function deals with ( and ) in the stream,
|
|
* and ignores when it finds them.
|
|
* \param[in] *f the file to read from
|
|
* \param[out] *token the token is put here
|
|
* \param[in] *delim chars at which the parsing should stop
|
|
* \param[in] *limit how much to read. If 0 use builtin maximum
|
|
* \param[in] line_nr pointer to an integer containing the current line number (for debugging purposes)
|
|
* \return 0 on error of EOF of F otherwise return the length of what is read
|
|
*/
|
|
ssize_t sldns_fget_token_l(FILE *f, char *token, const char *delim, size_t limit, int *line_nr);
|
|
|
|
/**
|
|
* returns a token/char from the buffer b.
|
|
* This function deals with ( and ) in the buffer,
|
|
* and ignores when it finds them.
|
|
* \param[in] *b the buffer to read from
|
|
* \param[out] *token the token is put here
|
|
* \param[in] *delim chars at which the parsing should stop
|
|
* \param[in] *limit how much to read. If 0 the builtin maximum is used
|
|
* \param[in] *par if you pass nonNULL, set to 0 on first call, the parenthesis
|
|
* state is stored in it, for use on next call. User must check it is back
|
|
* to zero after last bget in string (for parse error). If you pass NULL,
|
|
* the entire parenthesized string is read in.
|
|
* \param[in] skipw string with whitespace to skip before the start of the
|
|
* token, like " ", or " \t", or NULL for none.
|
|
* \returns 0 on error of EOF of b. Otherwise return the length of what is read
|
|
*/
|
|
ssize_t sldns_bget_token_par(struct sldns_buffer *b, char *token, const char *delim, size_t limit, int* par, const char* skipw);
|
|
|
|
/**
|
|
* returns a token/char from the buffer b.
|
|
* This function deals with ( and ) in the buffer,
|
|
* and ignores when it finds them.
|
|
* \param[in] *b the buffer to read from
|
|
* \param[out] *token the token is put here
|
|
* \param[in] *delim chars at which the parsing should stop
|
|
* \param[in] *limit how much to read. If 0 the builtin maximum is used
|
|
* \returns 0 on error of EOF of b. Otherwise return the length of what is read
|
|
*/
|
|
ssize_t sldns_bget_token(struct sldns_buffer *b, char *token, const char *delim, size_t limit);
|
|
|
|
/*
|
|
* searches for keyword and delim in a file. Gives everything back
|
|
* after the keyword + k_del until we hit d_del
|
|
* \param[in] f file pointer to read from
|
|
* \param[in] keyword keyword to look for
|
|
* \param[in] k_del keyword delimeter
|
|
* \param[out] data the data found
|
|
* \param[in] d_del the data delimeter
|
|
* \param[in] data_limit maximum size the the data buffer
|
|
* \return the number of character read
|
|
*/
|
|
ssize_t sldns_fget_keyword_data(FILE *f, const char *keyword, const char *k_del, char *data, const char *d_del, size_t data_limit);
|
|
|
|
/*
|
|
* searches for keyword and delim. Gives everything back
|
|
* after the keyword + k_del until we hit d_del
|
|
* \param[in] f file pointer to read from
|
|
* \param[in] keyword keyword to look for
|
|
* \param[in] k_del keyword delimeter
|
|
* \param[out] data the data found
|
|
* \param[in] d_del the data delimeter
|
|
* \param[in] data_limit maximum size the the data buffer
|
|
* \param[in] line_nr pointer to an integer containing the current line number (for
|
|
debugging purposes)
|
|
* \return the number of character read
|
|
*/
|
|
ssize_t sldns_fget_keyword_data_l(FILE *f, const char *keyword, const char *k_del, char *data, const char *d_del, size_t data_limit, int *line_nr);
|
|
|
|
/*
|
|
* searches for keyword and delim in a buffer. Gives everything back
|
|
* after the keyword + k_del until we hit d_del
|
|
* \param[in] b buffer pointer to read from
|
|
* \param[in] keyword keyword to look for
|
|
* \param[in] k_del keyword delimeter
|
|
* \param[out] data the data found
|
|
* \param[in] d_del the data delimeter
|
|
* \param[in] data_limit maximum size the the data buffer
|
|
* \return the number of character read
|
|
*/
|
|
ssize_t sldns_bget_keyword_data(struct sldns_buffer *b, const char *keyword, const char *k_del, char *data, const char *d_del, size_t data_limit);
|
|
|
|
/**
|
|
* returns the next character from a buffer. Advances the position pointer with 1.
|
|
* When end of buffer is reached returns EOF. This is the buffer's equivalent
|
|
* for getc().
|
|
* \param[in] *buffer buffer to read from
|
|
* \return EOF on failure otherwise return the character
|
|
*/
|
|
int sldns_bgetc(struct sldns_buffer *buffer);
|
|
|
|
/**
|
|
* skips all of the characters in the given string in the buffer, moving
|
|
* the position to the first character that is not in *s.
|
|
* \param[in] *buffer buffer to use
|
|
* \param[in] *s characters to skip
|
|
* \return void
|
|
*/
|
|
void sldns_bskipcs(struct sldns_buffer *buffer, const char *s);
|
|
|
|
/**
|
|
* skips all of the characters in the given string in the fp, moving
|
|
* the position to the first character that is not in *s.
|
|
* \param[in] *fp file to use
|
|
* \param[in] *s characters to skip
|
|
* \return void
|
|
*/
|
|
void sldns_fskipcs(FILE *fp, const char *s);
|
|
|
|
|
|
/**
|
|
* skips all of the characters in the given string in the fp, moving
|
|
* the position to the first character that is not in *s.
|
|
* \param[in] *fp file to use
|
|
* \param[in] *s characters to skip
|
|
* \param[in] line_nr pointer to an integer containing the current line number (for debugging purposes)
|
|
* \return void
|
|
*/
|
|
void sldns_fskipcs_l(FILE *fp, const char *s, int *line_nr);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* LDNS_PARSE_H */
|