1/* 2 * This program is free software; you can redistribute it and/or 3 * modify it under the terms of the GNU General Public License as 4 * published by the Free Software Foundation; either version 2 of 5 * the License, or (at your option) any later version. 6 * 7 * This program is distributed in the hope that it will be useful, 8 * but WITHOUT ANY WARRANTY; without even the implied warranty of 9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 10 * GNU General Public License for more details. 11 * 12 * You should have received a copy of the GNU General Public License 13 * along with this program; if not, write to the Free Software 14 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 15 * MA 02111-1307 USA 16 */ 17#ifndef VSFTP_ASCII_H 18#define VSFTP_ASCII_H 19 20struct mystr; 21 22/* vsf_ascii_ascii_to_bin() 23 * PURPOSE 24 * This function converts an input buffer from ascii format to binary format. 25 * This entails ripping out all occurences of '\r' that are followed by '\n'. 26 * The result is stored in "p_out". 27 * PARAMETERS 28 * p_in - the input and output buffer, which MUST BE at least as big as 29 * "in_len" PLUS ONE. This is to cater for a leading '\r' in the 30 * buffer if certain conditions are met. 31 * in_len - the length in bytes of the buffer. 32 * prev_cr - set to non-zero if this buffer fragment was immediately 33 * preceeded by a '\r'. 34 * RETURNS 35 * The number of characters stored in the buffer, the buffer address, and 36 * if we ended on a '\r'. 37 */ 38struct ascii_to_bin_ret 39{ 40 unsigned int stored; 41 int last_was_cr; 42 char* p_buf; 43}; 44struct ascii_to_bin_ret vsf_ascii_ascii_to_bin( 45 char* p_in, unsigned int in_len, int prev_cr); 46 47/* vsf_ascii_bin_to_ascii() 48 * PURPOSE 49 * This function converts an input buffer from binary format to ascii format. 50 * This entails replacing all occurences of '\n' with '\r\n'. The result is 51 * stored in "p_out". 52 * PARAMETERS 53 * p_in - the input buffer, which is not modified 54 * p_out - the output buffer, which MUST BE at least TWICE as big as 55 * "in_len" 56 * in_len - the length in bytes of the input buffer 57 * RETURNS 58 * The number of characters stored in the output buffer 59 */ 60unsigned int vsf_ascii_bin_to_ascii(const char* p_in, char* p_out, 61 unsigned int in_len); 62 63#endif /* VSFTP_ASCII_H */ 64 65