contrib/bind-9.5.2/lib/isc/include/isc/parseint.h

   1 /*
   2  * Copyright (C) 2004-2007  Internet Systems Consortium, Inc. ("ISC")
   3  * Copyright (C) 2001, 2002  Internet Software Consortium.
   4  *
   5  * Permission to use, copy, modify, and/or distribute this software for any
   6  * purpose with or without fee is hereby granted, provided that the above
   7  * copyright notice and this permission notice appear in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
  10  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
  11  * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
  12  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
  13  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
  14  * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  15  * PERFORMANCE OF THIS SOFTWARE.
  16  */
  17
  18 /* $Id: parseint.h,v 1.9 2007/06/19 23:47:18 tbox Exp $ */
  19
  20 #ifndef ISC_PARSEINT_H
  21 #define ISC_PARSEINT_H 1
  22
  23 #include <isc/lang.h>
  24 #include <isc/types.h>
  25
  26 /*! \file isc/parseint.h
  27  * \brief Parse integers, in a saner way than atoi() or strtoul() do.
  28  */
  29
  30 /***
  31  ***    Functions
  32  ***/
  33
  34 ISC_LANG_BEGINDECLS
  35
  36 isc_result_t
  37 isc_parse_uint32(isc_uint32_t *uip, const char *string, int base);
  38
  39 isc_result_t
  40 isc_parse_uint16(isc_uint16_t *uip, const char *string, int base);
  41
  42 isc_result_t
  43 isc_parse_uint8(isc_uint8_t *uip, const char *string, int base);
  44 /*%<
  45  * Parse the null-terminated string 'string' containing a base 'base'
  46  * integer, storing the result in '*uip'.
  47  * The base is interpreted
  48  * as in strtoul().  Unlike strtoul(), leading whitespace, minus or
  49  * plus signs are not accepted, and all errors (including overflow)
  50  * are reported uniformly through the return value.
  51  *
  52  * Requires:
  53  *\li   'string' points to a null-terminated string
  54  *\li   0 <= 'base' <= 36
  55  *
  56  * Returns:
  57  *\li   #ISC_R_SUCCESS
  58  *\li   #ISC_R_BADNUMBER   The string is not numeric (in the given base)
  59  *\li   #ISC_R_RANGE      The number is not representable as the requested type.
  60  */
  61
  62 ISC_LANG_ENDDECLS
  63
  64 #endif /* ISC_PARSEINT_H */