Mercurial > dovecot > core-2.2
view src/lib/strescape.c @ 896:21ffcce83c70 HEAD
Rewrote rfc822-tokenize.c to work one token at a time so it won't uselessly
take memory, maybe also a bit faster. This caused pretty large changes all
around.
Also moved all string (un)escaping code to lib/strescape.c.
author | Timo Sirainen <tss@iki.fi> |
---|---|
date | Fri, 03 Jan 2003 17:57:12 +0200 |
parents | |
children | 0d5be52d7131 |
line wrap: on
line source
/* Copyright (c) 2003 Timo Sirainen Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #include "lib.h" #include "str.h" #include "strescape.h" const char *str_escape(const char *str) { char *ret, *p; size_t i, esc; /* get length of string and number of chars to escape */ esc = 0; for (i = 0; str[i] != '\0'; i++) { if (IS_ESCAPED_CHAR(str[i])) esc++; } if (esc == 0) return str; /* @UNSAFE: escape them */ p = ret = t_malloc(i + esc + 1); for (; *str != '\0'; str++) { if (IS_ESCAPED_CHAR(*str)) *p++ = '\\'; *p++ = *str; } *p = '\0'; return ret; } void str_append_unescaped(String *dest, const char *src, size_t src_size) { size_t start = 0, i = 0; while (i < src_size) { start = i; for (; i < src_size; i++) { if (src[i] == '\\') break; } str_append_n(dest, src + start, i-start); if (src[i] == '\\') i++; start = i; } } void str_unescape(char *str) { /* @UNSAFE */ char *dest; while (*str != '\\') { if (*str == '\0') return; str++; } for (dest = str; *str != '\0'; str++) { if (*str != '\\' || str[1] == '\0') *dest++ = *str; } *dest = '\0'; }