Mercurial > dovecot > original-hg > dovecot-1.2
view src/lib/str.c @ 6429:65c69a53a7be HEAD
Replaced my Copyright notices. The year range always ends with 2007 now.
My name was replaced with "Dovecot authors". In many cases I didn't really
even own the copyright, so this is more correct.
author | Timo Sirainen <tss@iki.fi> |
---|---|
date | Sun, 16 Sep 2007 14:34:22 +0300 |
parents | a6a49d5efc59 |
children | 4c3002f3cd51 |
line wrap: on
line source
/* Copyright (c) 2002-2007 Dovecot authors, see the included COPYING file */ #include "lib.h" #include "buffer.h" #include "printf-format-fix.h" #include "str.h" #include <stdio.h> string_t *str_new(pool_t pool, size_t initial_size) { return buffer_create_dynamic(pool, initial_size); } string_t *t_str_new(size_t initial_size) { return str_new(pool_datastack_create(), initial_size); } void str_free(string_t **str) { buffer_free(str); } static void str_add_nul(string_t *str) { size_t len; len = str_len(str); buffer_write(str, len, "", 1); /* remove the \0 - we don't want to keep it */ buffer_set_used_size(str, len); } char *str_free_without_data(string_t **str) { str_add_nul(*str); return buffer_free_without_data(str); } const char *str_c(string_t *str) { str_add_nul(str); return buffer_get_data(str, NULL); } const unsigned char *str_data(const string_t *str) { return buffer_get_data(str, NULL); } char *str_c_modifiable(string_t *str) { str_add_nul(str); return buffer_get_modifiable_data(str, NULL); } size_t str_len(const string_t *str) { return buffer_get_used_size(str); } void str_append(string_t *str, const char *cstr) { buffer_append(str, cstr, strlen(cstr)); } void str_append_n(string_t *str, const void *cstr, size_t max_len) { size_t len; len = 0; while (len < max_len && ((const char *)cstr)[len] != '\0') len++; buffer_append(str, cstr, len); } void str_append_c(string_t *str, unsigned char chr) { buffer_append_c(str, chr); } void str_append_str(string_t *dest, const string_t *src) { const char *cstr; size_t len; cstr = buffer_get_data(src, &len); buffer_append(dest, cstr, len); } void str_printfa(string_t *str, const char *fmt, ...) { va_list args; va_start(args, fmt); str_vprintfa(str, fmt, args); va_end(args); } void str_vprintfa(string_t *str, const char *fmt, va_list args) { #define SNPRINTF_INITIAL_EXTRA_SIZE 256 va_list args2; char *tmp; unsigned int init_size; size_t pos = str->used; int ret, ret2; VA_COPY(args2, args); /* the format string is modified only if %m exists in it. it happens only in error conditions, so don't try to t_push() here since it'll just slow down the normal code path. */ fmt = printf_format_fix_get_len(fmt, &init_size); init_size += SNPRINTF_INITIAL_EXTRA_SIZE; /* @UNSAFE */ tmp = buffer_get_space_unsafe(str, pos, init_size); ret = vsnprintf(tmp, init_size, fmt, args); i_assert(ret >= 0); if ((unsigned int)ret >= init_size) { /* didn't fit with the first guess. now we know the size, so try again. */ tmp = buffer_get_space_unsafe(str, pos, ret + 1); ret2 = vsnprintf(tmp, ret + 1, fmt, args2); i_assert(ret2 == ret); } /* drop the unused data, including terminating NUL */ buffer_set_used_size(str, pos + ret); } void str_insert(string_t *str, size_t pos, const char *cstr) { buffer_insert(str, pos, cstr, strlen(cstr)); } void str_delete(string_t *str, size_t pos, size_t len) { buffer_delete(str, pos, len); } void str_truncate(string_t *str, size_t len) { buffer_set_used_size(str, len); }