/* GNU Mailutils -- a suite of utilities for electronic mail Copyright (C) 2005, 2007, 2010 Free Software Foundation, Inc. This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library. If not, see <http://www.gnu.org/licenses/>. */ #if HAVE_CONFIG_H # include <config.h> #endif #include <stdlib.h> #include <mailutils/errno.h> #include <mailutils/error.h> #include <mu_umaxtostr.h> static char **buffer_pool; static size_t buffer_size; #define BUFFER_SIZE_INIT 4 #define BUFFER_SIZE_INCR 4 static char * get_buffer (unsigned slot) { if (!buffer_pool) { buffer_size = BUFFER_SIZE_INIT; buffer_pool = calloc (buffer_size, sizeof *buffer_pool); } else if (slot >= buffer_size) { buffer_size += (slot + BUFFER_SIZE_INCR - 1) / BUFFER_SIZE_INCR; buffer_pool = realloc (buffer_pool, buffer_size * sizeof *buffer_pool); } if (!buffer_pool) return NULL; if (buffer_pool[slot] == NULL) buffer_pool[slot] = malloc (UINTMAX_STRSIZE_BOUND); return buffer_pool[slot]; } const char * mu_umaxtostr (unsigned slot, uintmax_t val) { char *s = get_buffer (slot); if (!s) return mu_strerror(ENOMEM); return umaxtostr (val, s); }