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/* * ProFTPD - FTP server daemon * Copyright (c) 2013-2018 The ProFTPD Project team * * 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 2 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, write to the Free Software * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA. * * As a special exemption, The ProFTPD Project team and other respective * copyright holders give permission to link this program with OpenSSL, and * distribute the resulting executable, without including the source code for * OpenSSL in the source distribution. */ /* ASCII character checks/conversions */ #ifndef PR_ASCII_H #define PR_ASCII_H /* These macros "wrap" many of the ctype(3) checks (which may themselves * be macros), doing an isascii(3) check FIRST, before calling the actual * ctype(3) check desired. */ #define PR_ISALNUM(c) (isascii((int) (c)) && isalnum((int) (c))) #define PR_ISALPHA(c) (isascii((int) (c)) && isalpha((int) (c))) #define PR_ISCNTRL(c) (isascii((int) (c)) && iscntrl((int) (c))) #define PR_ISDIGIT(c) (isascii((int) (c)) && isdigit((int) (c))) #define PR_ISPRINT(c) (isascii((int) (c)) && isprint((int) (c))) #define PR_ISSPACE(c) (isascii((int) (c)) && isspace((int) (c))) #define PR_ISXDIGIT(c) (isascii((int) (c)) && isxdigit((int) (c))) /* For FTP's ASCII conversion rules. */ void pr_ascii_ftp_reset(void); /* Converts the given `in' buffer, character by character, writing the data into * the given `out' buffer, converting any CRLF sequences found into LF * sequences. The amount of data written into the `out' buffer is returned * via the `outlen' argument. * * Returns the number of "carry over" CRs on success, and -1 on error, setting * errno appropriately. */ int pr_ascii_ftp_from_crlf(pool *p, char *in, size_t inlen, char **out, size_t *outlen); /* * Returns the number N on success, and -1 on error, setting errno * appropriately. * * NOTE: This function uses malloc(3) deliberately (see Bug#4352), and thus * the caller MUST call free(3) on the **out pointer. */ int pr_ascii_ftp_to_crlf(pool *p, char *in, size_t inlen, char **out, size_t *outlen); #endif /* PR_ASCII_H */