1 files changed, 184 insertions, 0 deletions
diff --git a/ldns/parse.h b/ldns/parse.h
new file mode 100644
index 000000000000..7b7456dd2068
--- /dev/null
+++ b/ldns/parse.h
@@ -0,0 +1,184 @@
+/*
+ * 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 */