/* silcbuffmt.h Author: Pekka Riikonen Copyright (C) 1997 - 2007 Pekka Riikonen 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; version 2 of the License. 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. */ /****h* silcutil/SILC Buffer Format Interface * * DESCRIPTION * * SILC Buffer Format API provides functions for formatting different data * types into a buffer and retrieving different data types from a buffer * into specified data types. It is especially useful to encode packets, * protocol payloads and such. * * As the SilcBuffer API is not thread-safe these routines may not be used * in multithreaded environment with a same SilcBuffer context without * concurrency control. * * EXAMPLE * * SilcBufferStruct buffer; * * memset(&buffer, 0, sizeof(buffer)); * ret = silc_buffer_format(&buffer, * SILC_STR_UINT32(intval), * SILC_STR_UINT8(charval), * SILC_STR_UINT64(longintval), * SILC_STR_UINT16(str_len), * SILC_STR_DATA(str, str_len), * SILC_STR_END); * if (ret < 0) * error; * ***/ #ifndef SILCBUFFMT_H #define SILCBUFFMT_H /****f* silcutil/SilcBufferFormatAPI/SilcBufferFormatFunc * * SYNOPSIS * * typedef int (*SilcBuffeSFormatFunc)(SilcStack stack, * SilcBuffer buffer, * void *value, * void *context); * * DESCRIPTION * * Formatting function callback given with SILC_STR_FUNC type. The * `buffer' is the buffer being formatted at the location where the * SILC_STR_FUNC was placed in formatting. The function should call * silc_buffer_senlarge before it adds the data to the buffer to make * sure that it has enough space. The buffer->head points to the * start of the buffer and silc_buffer_headlen() gives the length * of the currently formatted data area. It is also possible to use * silc_buffer_sformat with `buffer' which will enlarge the buffer if * needed. * * The `value' is the value given to SILC_STR_FUNC that is to be formatted * into the buffer. It may be NULL if the function is not formatting * new data into the buffer. The `context' is caller specific context. * Returns -1 on error and length of the formatted value otherwise, and * 0 if nothing was formatted. * ***/ typedef int (*SilcBufferFormatFunc)(SilcStack stack, SilcBuffer buffer, void *value, void *context); /****f* silcutil/SilcBufferFormatAPI/SilcBufferUnformatFunc * * SYNOPSIS * * typedef int (*SilcBufferUnformatFunc)(SilcBuffer buffer, * void **value, * void *context); * * DESCRIPTION * * Unformatting function callback given with SILC_STR_FUNC type. The * `buffer' is the buffer being unformatted and is at the location where * the SILC_STR_FUNC was placed in unformatting. The function should * check there is enough data in the `buffer' before trying to decode * from it. * * If this function unformats anything from the buffer its value is to * be returned to the `value' pointer. The implementation should itself * decide whether the unformatted value is allocated or not. If this * function does not unformat anything, nothing is returned to `value' * * The `context' is caller specific context. Returns -1 on error, and * length of the unformatted value otherwise, and 0 if nothing was * unformatted. * ***/ typedef int (*SilcBufferUnformatFunc)(SilcStack stack, SilcBuffer buffer, void **value, void *context); /* Prototypes */ /****f* silcutil/SilcBufferFormatAPI/silc_buffer_format * * SYNOPSIS * * int silc_buffer_format(SilcBuffer dst, ...); * * DESCRIPTION * * Formats a buffer from a variable argument list. Returns -1 if the * system is out of memory and the length of the formatted buffer otherwise. * The buffer is enlarged automatically during formatting, if it doesn't * already have enough space. Sets silc_errno in case of error. * * EXAMPLE * * Three basic ways of using silc_buffer_format: * * // Statically allocated zero size buffer * SilcBufferStruct buffer; * * memset(&buffer, 0, sizeof(buffer)); * ret = silc_buffer_format(&buffer, * SILC_STR_UINT32(intval), * SILC_STR_UINT8(charval), * SILC_STR_UINT32(intval), * SILC_STR_UINT16(str_len), * SILC_STR_DATA(str, str_len), * SILC_STR_END); * if (ret < 0) * error; * * // Free the allocated data * silc_buffer_purge(&buffer); * * // Dynamically allocated zero size buffer * SilcBuffer buf; * buf = silc_buffer_alloc(0); * ret = silc_buffer_format(buf, * SILC_STR_UINT32(intval), * SILC_STR_UINT8(charval), * SILC_STR_END); * if (ret < 0) * error; * * // Free the allocated buffer * silc_buffer_free(buf); * * // Dynamically allocated buffer with enough space * SilcBuffer buf; * buf = silc_buffer_alloc(2 + str_len); * ret = silc_buffer_format(buf, * SILC_STR_UINT16(str_len), * SILC_STR_DATA(str, str_len), * SILC_STR_END); * if (ret < 0) * error; * ***/ int silc_buffer_format(SilcBuffer dst, ...); /****f* silcutil/SilcBufferFormatAPI/silc_buffer_sformat * * SYNOPSIS * * int silc_buffer_sformat(SilcStack stack, SilcBuffer dst, ...); * * DESCRIPTION * * Same as silc_buffer_format but uses `stack' to allocate the memory. * if `stack' is NULL reverts back to silc_buffer_format call. Returns * -1 if system is out of memory. Sets silc_errno in case of error. * * Note that this call consumes the `stack'. The caller should push the * stack before calling the function and pop it later. * ***/ int silc_buffer_sformat(SilcStack stack, SilcBuffer dst, ...); /****f* silcutil/SilcBufferFormatAPI/silc_buffer_format_vp * * SYNOPSIS * * int silc_buffer_format_vp(SilcBuffer dst, va_list vp); * * DESCRIPTION * * Formats a buffer from a variable argument list indicated by the `ap'. * Returns -1 if system is out of memory and the length of the formatted * buffer otherwise. * ***/ int silc_buffer_format_vp(SilcBuffer dst, va_list ap); /****f* silcutil/SilcBufferFormatAPI/silc_buffer_sformat_vp * * SYNOPSIS * * int silc_buffer_sformat_vp(SilcStack stack, SilcBuffer dst, va_list vp); * * DESCRIPTION * * Same as silc_buffer_format_vp but uses `stack' to allocate the memory. * if `stack' is NULL reverts back to silc_buffer_format_vp call. Returns * -1 if system is out of memory. Sets silc_errno in case of error. * * Note that this call consumes the `stack'. The caller should push the * stack before calling the function and pop it later. * ***/ int silc_buffer_sformat_vp(SilcStack stack, SilcBuffer dst, va_list ap); /****f* silcutil/SilcBufferFormatAPI/silc_buffer_unformat * * SYNOPSIS * * int silc_buffer_unformat(SilcBuffer src, ...); * * DESCRIPTION * * Unformats a buffer from a variable argument list. Returns -1 on error * and the length of the unformatted buffer otherwise. Sets silc_errno * in case of error. * * EXAMPLE * * ret = silc_buffer_unformat(buffer, * SILC_STR_UINT32(&intval), * SILC_STR_UINT8(&charval), * SILC_STR_OFFSET(4), * SILC_STR_UI16_NSTRING_ALLOC(&str, &str_len), * SILC_STR_END); * if (ret < 0) * error; * ***/ int silc_buffer_unformat(SilcBuffer src, ...); /****f* silcutil/SilcBufferFormatAPI/silc_buffer_sunformat * * SYNOPSIS * * int silc_buffer_sunformat(SilcStack stack, SilcBuffer src, ...); * * DESCRIPTION * * Same as silc_buffer_unformat but uses `stack' to allocate the memory. * if `stack' is NULL reverts back to silc_buffer_format call. * * Note that this call consumes the `stack'. The caller should push the * stack before calling the function and pop it later. * ***/ int silc_buffer_sunformat(SilcStack stack, SilcBuffer src, ...); /****f* silcutil/SilcBufferFormatAPI/silc_buffer_unformat_vp * * SYNOPSIS * * int silc_buffer_unformat_vp(SilcBuffer src, va_list vp); * * DESCRIPTION * * Unformats a buffer from a variable argument list indicated by the `ap'. * Returns -1 on error and the length of the unformatted buffer otherwise. * ***/ int silc_buffer_unformat_vp(SilcBuffer src, va_list ap); /****f* silcutil/SilcBufferFormatAPI/silc_buffer_sunformat_vp * * SYNOPSIS * * int silc_buffer_sunformat_vp(SilcBuffer src, va_list vp); * * DESCRIPTION * * Same as silc_buffer_unformat_vp but uses `stack' to allocate the * memory. if `stack' is NULL reverts back to silc_buffer_format_vp call. * * Note that this call consumes the `stack'. The caller should push the * stack before calling the function and pop it later. * ***/ int silc_buffer_sunformat_vp(SilcStack stack, SilcBuffer src, va_list ap); /****f* silcutil/SilcBufferFormatAPI/silc_buffer_strformat * * SYNOPSIS * * int silc_buffer_strformat(SilcBuffer dst, ...); * * DESCRIPTION * * Formats a buffer from variable argument list of strings. Each * string must be NULL-terminated and the variable argument list must * be end with SILC_STRFMT_END argument. This allows that a string in * the list can be NULL, in which case it is skipped. This automatically * allocates the space for the buffer data but `dst' must be already * allocated by the caller. Returns -1 if system is out of memory and * sets silc_errno. * * EXAMPLE * * ret = silc_buffer_strformat(buffer, "foo", "bar", SILC_STRFMT_END); * if (ret < 0) * error; * ***/ int silc_buffer_strformat(SilcBuffer dst, ...); /****f* silcutil/SilcBufferFormatAPI/silc_buffer_sstrformat * * SYNOPSIS * * int silc_buffer_strformat(SilcStack stack, SilcBuffer dst, ...); * * DESCRIPTION * * Formats a buffer from variable argument list of strings. Each * string must be NULL-terminated and the variable argument list must * be end with SILC_STRFMT_END argument. This allows that a string in * the list can be NULL, in which case it is skipped. This automatically * allocates the space for the buffer data but `dst' must be already * allocated by the caller. This function is equivalent to * silc_buffer_strformat but allocates memory from `stack'. Returns -1 * if system is out of memory and sets silc_errno. * * Note that this call consumes the `stack'. The caller should push the * stack before calling the function and pop it later. * ***/ int silc_buffer_sstrformat(SilcStack stack, SilcBuffer dst, ...); /****d* silcutil/SilcBufferFormatAPI/SILC_STR_SINT8 * * NAME * * #define SILC_STR_SINT8() ... * * DESCRIPTION * * One 8-bit signed integer. * * Formatting: SILC_STR_SINT8(SilcInt8) * Unformatting: SILC_STR_SINT8(SilcInt8 *) * ***/ #define SILC_STR_SINT8(x) SILC_PARAM_SINT8, (x) /****d* silcutil/SilcBufferFormatAPI/SILC_STR_UINT8 * * NAME * * #define SILC_STR_UINT8() ... * * DESCRIPTION * * One 8-bit unsigned integer. * * Formatting: SILC_STR_UINT8(SilcUInt8) * Unformatting: SILC_STR_UINT8(SilcUInt8 *) * ***/ #define SILC_STR_UINT8(x) SILC_PARAM_UINT8, (x) /* Deprecated */ #define SILC_STR_SI_CHAR(x) SILC_PARAM_SINT8, (x) #define SILC_STR_UI_CHAR(x) SILC_PARAM_UINT8, (x) /****d* silcutil/SilcBufferFormatAPI/SILC_STR_SINT16 * * NAME * * #define SILC_STR_SINT16() ... * * DESCRIPTION * * SilcInt16. * * Formatting: SILC_STR_SINT16(SilcInt16) * Unformatting: SILC_STR_SINT16(SilcInt16 *) * ***/ #define SILC_STR_SINT16(x) SILC_PARAM_SINT16, (x) /****d* silcutil/SilcBufferFormatAPI/SILC_STR_UINT16 * * NAME * * #define SILC_STR_UINT16() ... * * DESCRIPTION * * SilcUInt16. * * Formatting: SILC_STR_UINT16(SilcUInt16) * Unformatting: SILC_STR_UINT16(SilcUInt16 *) * ***/ #define SILC_STR_UINT16(x) SILC_PARAM_UINT16, (x) /* Deprecated */ #define SILC_STR_SI_SHORT(x) SILC_PARAM_SINT16, (x) #define SILC_STR_UI_SHORT(x) SILC_PARAM_UINT16, (x) /****d* silcutil/SilcBufferFormatAPI/SILC_STR_SINT32 * * NAME * * #define SILC_STR_SINT32() ... * * DESCRIPTION * * SilcInt32. * * Formatting: SILC_STR_SINT32(SilcInt32) * Unformatting: SILC_STR_SINT32(SilcInt32 *) * ***/ #define SILC_STR_SINT32(x) SILC_PARAM_SINT32, (x) /****d* silcutil/SilcBufferFormatAPI/SILC_STR_UINT32 * * NAME * * #define SILC_STR_UINT32() ... * * DESCRIPTION * * SilcUInt32. * * Formatting: SILC_STR_UINT32(SilcUInt32) * Unformatting: SILC_STR_UINT32(SilcUInt32 *) * ***/ #define SILC_STR_UINT32(x) SILC_PARAM_UINT32, (x) /* Deprecated */ #define SILC_STR_SI_INT(x) SILC_PARAM_SINT32, (x) #define SILC_STR_UI_INT(x) SILC_PARAM_UINT32, (x) /****d* silcutil/SilcBufferFormatAPI/SILC_STR_SINT64 * * NAME * * #define SILC_STR_SINT64() ... * * DESCRIPTION * * SilcInt64. * * Formatting: SILC_STR_SINT64(SilcInt64) * Unformatting: SILC_STR_SINT64(SilcInt64 *) * ***/ #define SILC_STR_SI_INT64(x) SILC_PARAM_SINT64, (x) /****d* silcutil/SilcBufferFormatAPI/SILC_STR_UINT64 * * NAME * * #define SILC_STR_UINT64() ... * * DESCRIPTION * * SilcUInt64. * * Formatting: SILC_STR_UINT64(SilcUInt64) * Unformatting: SILC_STR_UINT64(SilcUInt64 *) * ***/ #define SILC_STR_UI_INT64(x) SILC_PARAM_UINT64, (x) /* Deprecated */ #define SILC_STR_SI_INT64(x) SILC_PARAM_SINT64, (x) #define SILC_STR_UI_INT64(x) SILC_PARAM_UINT64, (x) /****d* silcutil/SilcBufferFormatAPI/SILC_STR_*_STRING * * NAME * * #define SILC_STR_UI8_STRING() ... * #define SILC_STR_UI8_STRING_ALLOC() ... * #define SILC_STR_UI16_STRING() ... * #define SILC_STR_UI16_STRING_ALLOC() ... * #define SILC_STR_UI32_STRING() ... * #define SILC_STR_UI32_STRING_ALLOC() ... * * DESCRIPTION * * Unsigned NULL terminated string. Note that the string must be * NULL terminated because strlen() will be used to get the length of * the string. * * Formatting: SILC_STR_UI32_STRING(unsigned char *) * Unformatting: SILC_STR_UI32_STRING(unsigned char **) * * Unformatting procedure will check for length of the string from the * buffer before trying to get the string out. Thus, one *must* format the * length as UI_INT or UI_SHORT into the buffer *before* formatting the * actual string to the buffer, and, in unformatting one must ignore the * length of the string because unformatting procedure will take it * automatically. * * Example: * * Formatting: ..., SILC_STR_UI_INT(strlen(string)), * SILC_STR_UI32_STRING(string), ... * Unformatting: ..., SILC_STR_UI32_STRING(&string), ... * * I.e., you can ignore the formatted length field in unformatting. * * UI8, UI16 and UI32 means that the length is considered to be * either char (8 bits), short (16 bits) or int (32 bits) in * unformatting. * * _ALLOC routines automatically allocates memory for the variable sent * as argument in unformatting. * ***/ #define SILC_STR_UI8_STRING(x) SILC_PARAM_UI8_STRING, (x) #define SILC_STR_UI8_STRING_ALLOC(x) SILC_PARAM_UI8_STRING | SILC_PARAM_ALLOC, (x) #define SILC_STR_UI16_STRING(x) SILC_PARAM_UI16_STRING, (x) #define SILC_STR_UI16_STRING_ALLOC(x) SILC_PARAM_UI16_STRING | SILC_PARAM_ALLOC, (x) #define SILC_STR_UI32_STRING(x) SILC_PARAM_UI32_STRING, (x) #define SILC_STR_UI32_STRING_ALLOC(x) SILC_PARAM_UI32_STRING | SILC_PARAM_ALLOC, (x) /****d* silcutil/SilcBufferFormatAPI/SILC_STR_*_NSTRING * * NAME * * #define SILC_STR_UI8_NSTRING() ... * #define SILC_STR_UI8_NSTRING_ALLOC() ... * #define SILC_STR_UI16_NSTRING() ... * #define SILC_STR_UI16_NSTRING_ALLOC() ... * #define SILC_STR_UI32_NSTRING() ... * #define SILC_STR_UI32_NSTRING_ALLOC() ... * * DESCRIPTION * * Unsigned string. Second argument is the length of the string. * * Formatting: SILC_STR_UI32_NSTRING(unsigned char *, SilcUInt32) * Unformatting: SILC_STR_UI32_NSTRING(unsigned char **, SilcUInt32 *) * * Unformatting procedure will check for length of the string from the * buffer before trying to get the string out. Thus, one *must* format the * length as UI_INT or UI_SHORT into the buffer *before* formatting the * actual string to the buffer, and, in unformatting one must ignore the * length of the string because unformatting procedure will take it * automatically. * * Example: * * Formatting: ..., SILC_STR_UI_INT(strlen(string)), * SILC_STR_UI32_NSTRING(string, strlen(string)), ... * Unformatting: ..., SILC_STR_UI32_NSTRING(&string, &len), ... * * I.e., you can ignore the formatted length field in unformatting. The * length taken from the buffer is returned to the pointer sent as * argument (&len in above example). * * UI8, UI16 and UI32 means that the length is considered to be * either char (8 bits), short (16 bits) or int (32 bits) in * unformatting. * * _ALLOC routines automatically allocates memory for the variable sent * as argument in unformatting. * ***/ #define SILC_STR_UI8_NSTRING(x, l) SILC_PARAM_UI8_NSTRING, (x), (l) #define SILC_STR_UI8_NSTRING_ALLOC(x, l) \ SILC_PARAM_UI8_NSTRING | SILC_PARAM_ALLOC, (x), (l) #define SILC_STR_UI16_NSTRING(x, l) SILC_PARAM_UI16_NSTRING, (x), (l) #define SILC_STR_UI16_NSTRING_ALLOC(x, l) \ SILC_PARAM_UI16_NSTRING | SILC_PARAM_ALLOC, (x), (l) #define SILC_STR_UI32_NSTRING(x, l) SILC_PARAM_UI32_NSTRING, (x), (l) #define SILC_STR_UI32_NSTRING_ALLOC(x, l) \ SILC_PARAM_UI32_NSTRING | SILC_PARAM_ALLOC, (x), (l) /****d* silcutil/SilcBufferFormatAPI/SILC_STR_DATA * * NAME * * #define SILC_STR_DATA() ... * #define SILC_STR_DATA_ALLOC() ... * * DESCRIPTION * * Binary data formatting. Second argument is the length of the data. * * Formatting: SILC_STR_DATA(unsigned char *, SilcUInt32) * Unformatting: SILC_STR_DATA(unsigned char **, SilcUInt32) * * This type can be used to take arbitrary size data block from the buffer * by sending the requested amount of bytes as argument. * * _ALLOC routines automatically allocates memory for the variable sent * as argument in unformatting. * ***/ #define SILC_STR_DATA(x, l) SILC_PARAM_UICHAR, (x), (l) #define SILC_STR_DATA_ALLOC(x, l) SILC_PARAM_UICHAR | SILC_PARAM_ALLOC, (x), (l) /* Deprecated */ #define SILC_STR_UI_XNSTRING(x, l) SILC_PARAM_UICHAR, (x), (l) #define SILC_STR_UI_XNSTRING_ALLOC(x, l) SILC_PARAM_UICHAR | SILC_PARAM_ALLOC, (x), (l) /****d* silcutil/SilcBufferFormatAPI/SILC_STR_BUFFER * * NAME * * #define SILC_STR_BUFFER() ... * #define SILC_STR_BUFFER_ALLOC() ... * * DESCRIPTION * * SilcBuffer formatting. * * Formatting: SILC_STR_BUFFER(SilcBuffer) * Unformatting: SILC_STR_BUFFER(SilcBuffer) * * This type can be used to format and unformat SilcBuffer. Note that, the * length of the buffer will be automatically encoded into the buffer as * a 32-bit integer. In unformatting the SilcBuffer context must be * pre-allocated. * * _ALLOC routines automatically allocates memory inside SilcBuffer in * unformatting. * ***/ #define SILC_STR_BUFFER(x) SILC_PARAM_BUFFER, (x) #define SILC_STR_BUFFER_ALLOC(x) SILC_PARAM_BUFFER | SILC_PARAM_ALLOC, (x) /****d* silcutil/SilcBufferFormatAPI/SILC_STR_FUNC * * NAME * * #define SILC_STR_FUNC() ... * * DESCRIPTION * * SilcBuffer formatting. * * Formatting: SILC_STR_FUNC(function, void *value, void *context) * Unformatting: SILC_STR_FUNC(function, void **value, void *context) * * This type can be used to call the `function' of the type * SilcBufferFormatFunc or SilcBufferUnformatFunc to encode or decode * the `value'. In encoding the `value' will be passed to the `function' * and can be encoded into the buffer. The buffer will be passed as * well to the `function' at the location where SILC_STR_FUNC is placed * in formatting. The `context' delivers caller specific context to * the `function' * * In unformatting the `function' will decode the encoded type and * return it to `value' pointer. The decoding function should decide * itself whether to allocate or not the decoded value. * * The `function' does not have to encode anything and passing `value' * as NULL is allowed. The `function' could for example modify the * existing buffer. * * EXAMPLE * * // Encode payload, encrypt and compute MAC. * silc_buffer_format(buf, * SILC_STR_FUNC(foo_encode_id, id, ctx), * SILC_STR_UINT16(len), * SILC_STR_DATA(data, len), * SILC_STR_FUNC(foo_buf_encrypt, NULL, key), * SILC_STR_FUNC(foo_buf_hmac, NULL, hmac), * SILC_STR_DATA(iv, iv_len); * SILC_STR_END); * * // Check MAC, decrypt and decode payload * silc_buffer_unformat(buf, * SILC_STR_FUNC(foo_buf_hmac, NULL, hmac), * SILC_STR_FUNC(foo_buf_decrypt, NULL, key), * SILC_STR_FUNC(foo_decode_id, &id, ctx), * SILC_STR_UINT16(&len), * SILC_STR_END); * ***/ #define SILC_STR_FUNC(func, val, context) SILC_PARAM_FUNC, \ func, (val), (context) /****d* silcutil/SilcBufferFormatAPI/SILC_STR_OFFSET * * NAME * * #define SILC_STR_OFFSET() ... * * DESCRIPTION * * Offset in buffer. This can be used in formatting and unformatting to * move the data pointer of the buffer either forwards (positive offset) * or backwards (negative offset). It can be used to for example skip * some types during unformatting. * * Example: * * ..., SILC_STR_OFFSET(5), ... * ..., SILC_STR_OFFSET(-3), ... * * Moves the data pointer at the point of the offset either forward * or backward and then moves to the next type. Multiple SILC_STR_OFFSETs * can be used in formatting and unformatting at the same time. * ***/ #define SILC_STR_OFFSET(x) SILC_PARAM_OFFSET, (x) /****d* silcutil/SilcBufferFormatAPI/SILC_STR_ADVANCE * * NAME * * #define SILC_STR_ADVANCE ... * * DESCRIPTION * * Advance the buffer to the end of the data after the formatting is * done. In normal operation when the formatted data is written the * buffer is positioned at the start of the data. With SILC_STR_ADVANCE * the buffer will be positioned at the end of the data. This makes it * easy to add new data immediately after the previously added data. * The SILC_STR_ADVANCE may also be used in unformatting. * * EXAMPLE * * do { * len = read(fd, buf, sizeof(buf)); * if (len > 0) * // Add read data to the buffer * silc_buffer_format(buffer, * SILC_STR_ADVANCE, * SILC_STR_DATA(buf, len), * SILC_STR_END); * } while (len > 0); * * // Move to beginning of buffer * silc_buffer_start(buffer); * ***/ #define SILC_STR_ADVANCE SILC_PARAM_ADVANCE /****d* silcutil/SilcBufferFormatAPI/SILC_STR_END * * NAME * * #define SILC_STR_END ... * * DESCRIPTION * * Marks end of the argument list. This must be at the end of the * argument list or error will occur. * ***/ #define SILC_STR_END SILC_PARAM_END /****d* silcutil/SilcBufferFormatAPI/SILC_STRFMT_END * * NAME * * #define SILC_STRFMT_END ... * * DESCRIPTION * * Marks end of the argument list in silc_buffer_strformat function. * This must be at the end of the argument list or error will occur. * ***/ #define SILC_STRFMT_END (void *)SILC_STR_END #endif /* !SILCBUFFMT_H */