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/*
* uhub - A tiny ADC p2p connection hub
* Copyright (C) 2007-2009, Jan Vidar Krey
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef HAVE_UHUB_MISC_H
#define HAVE_UHUB_MISC_H
typedef int (*file_line_handler_t)(char* line, int line_number, void* data);
extern const char* get_timestamp(time_t time);
extern int is_num(char c);
extern int is_space(char c);
extern int is_white_space(char c);
extern int is_valid_utf8(const char* string);
extern int is_printable_utf8(const char* string, size_t length);
extern int is_valid_base32_char(char c);
extern void base32_encode(const unsigned char* buffer, size_t len, char* result);
extern void base32_decode(const char* src, unsigned char* dst, size_t len);
extern char* strip_white_space(char* string);
extern void strip_off_ini_line_comments(char* line, int line_count);
extern char* strip_off_quotes(char* line);
/**
* Convert number in str to integer and store it in num.
* @return 1 on success, or 0 on error.
*/
extern int is_number(const char* str, int* num);
/**
* Convert the 'bytes' number into a formatted byte size string.
* E.g. "129012" becomes "125.99 KB".
* Note, if the output buffer is not large enough then the output
* will be truncated. The buffer will always be \0 terminated.
*
* @param bytes the number that should be formatted.
* @param[out] buf the buffer the string should be formatted into
* @param bufsize the size of 'buf'
* @return A pointer to buf.
*/
extern const char* format_size(size_t bytes, char* buf, size_t bufsize);
extern int file_read_lines(const char* file, void* data, file_line_handler_t handler);
/**
* Convert a string to a boolean (0 or 1).
* Example:
* "yes", "true", "1", "on" sets 1 in boolean, and returns 1.
* "no", "false", "0", "off" sets 0 in boolean, and returns 1.
* All other values return 0, and boolean is unchanged.
*/
extern int string_to_boolean(const char* str, int* boolean);
/**
* Convert number to string.
* Note: these functions are neither thread-safe nor reentrant.
* @return pointer to the resulting string, NULL on error
*/
extern const char* uhub_itoa(int val);
extern const char* uhub_ulltoa(uint64_t val);
extern int uhub_atoi(const char* value);
#ifndef HAVE_STRNDUP
extern char* strndup(const char* string, size_t n);
#endif
#ifndef HAVE_MEMMEM
void* memmem(const void *haystack, size_t haystacklen, const void *needle, size_t needlelen);
#endif
/**
* Split the string based on split, and place the different parts into list.
* @return the number of items in the list after split, or -1 if an error occured.
*/
struct linked_list;
extern int split_string(const char* string, const char* split, struct linked_list* list, int allow_empty);
typedef int (*string_split_handler_t)(char* string, int count, void* data);
extern int string_split(const char* string, const char* split, void* data, string_split_handler_t handler);
#endif /* HAVE_UHUB_MISC_H */
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