00b67f09dd
Also known as ISC bind. This import adds utilities such as host(1), dig(1), and nslookup(1), as well as many other tools and libraries. Change-Id: I035ca46e64f1965d57019e773f4ff0ef035e4aa3
241 lines
6.5 KiB
C
241 lines
6.5 KiB
C
/* $NetBSD: string.h,v 1.5 2014/12/10 04:38:00 christos Exp $ */
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/*
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* Copyright (C) 2004-2007, 2014 Internet Systems Consortium, Inc. ("ISC")
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* Copyright (C) 2000, 2001, 2003 Internet Software Consortium.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
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* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
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* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
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* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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/* Id: string.h,v 1.23 2007/09/13 04:48:16 each Exp */
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#ifndef ISC_STRING_H
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#define ISC_STRING_H 1
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/*! \file isc/string.h */
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#include <isc/formatcheck.h>
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#include <isc/int.h>
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#include <isc/lang.h>
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#include <isc/platform.h>
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#include <isc/types.h>
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#include <string.h>
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#ifdef ISC_PLATFORM_HAVESTRINGSH
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#include <strings.h>
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#endif
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#define ISC_STRING_MAGIC 0x5e
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ISC_LANG_BEGINDECLS
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isc_uint64_t
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isc_string_touint64(char *source, char **endp, int base);
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/*%<
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* Convert the string pointed to by 'source' to isc_uint64_t.
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*
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* On successful conversion 'endp' points to the first character
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* after conversion is complete.
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*
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* 'base': 0 or 2..36
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*
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* If base is 0 the base is computed from the string type.
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*
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* On error 'endp' points to 'source'.
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*/
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isc_result_t
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isc_string_copy(char *target, size_t size, const char *source);
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/*
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* Copy the string pointed to by 'source' to 'target' which is a
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* pointer to a string of at least 'size' bytes.
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*
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* Requires:
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* 'target' is a pointer to a char[] of at least 'size' bytes.
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* 'size' an integer > 0.
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* 'source' == NULL or points to a NUL terminated string.
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*
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* Ensures:
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* If result == ISC_R_SUCCESS
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* 'target' will be a NUL terminated string of no more
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* than 'size' bytes (including NUL).
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*
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* If result == ISC_R_NOSPACE
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* 'target' is undefined.
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*
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* Returns:
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* ISC_R_SUCCESS -- 'source' was successfully copied to 'target'.
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* ISC_R_NOSPACE -- 'source' could not be copied since 'target'
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* is too small.
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*/
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void
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isc_string_copy_truncate(char *target, size_t size, const char *source);
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/*
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* Copy the string pointed to by 'source' to 'target' which is a
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* pointer to a string of at least 'size' bytes.
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*
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* Requires:
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* 'target' is a pointer to a char[] of at least 'size' bytes.
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* 'size' an integer > 0.
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* 'source' == NULL or points to a NUL terminated string.
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*
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* Ensures:
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* 'target' will be a NUL terminated string of no more
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* than 'size' bytes (including NUL).
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*/
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isc_result_t
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isc_string_append(char *target, size_t size, const char *source);
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/*
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* Append the string pointed to by 'source' to 'target' which is a
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* pointer to a NUL terminated string of at least 'size' bytes.
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*
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* Requires:
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* 'target' is a pointer to a NUL terminated char[] of at
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* least 'size' bytes.
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* 'size' an integer > 0.
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* 'source' == NULL or points to a NUL terminated string.
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*
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* Ensures:
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* If result == ISC_R_SUCCESS
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* 'target' will be a NUL terminated string of no more
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* than 'size' bytes (including NUL).
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*
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* If result == ISC_R_NOSPACE
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* 'target' is undefined.
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*
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* Returns:
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* ISC_R_SUCCESS -- 'source' was successfully appended to 'target'.
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* ISC_R_NOSPACE -- 'source' could not be appended since 'target'
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* is too small.
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*/
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void
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isc_string_append_truncate(char *target, size_t size, const char *source);
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/*
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* Append the string pointed to by 'source' to 'target' which is a
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* pointer to a NUL terminated string of at least 'size' bytes.
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*
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* Requires:
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* 'target' is a pointer to a NUL terminated char[] of at
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* least 'size' bytes.
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* 'size' an integer > 0.
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* 'source' == NULL or points to a NUL terminated string.
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*
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* Ensures:
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* 'target' will be a NUL terminated string of no more
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* than 'size' bytes (including NUL).
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*/
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isc_result_t
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isc_string_printf(char *target, size_t size, const char *format, ...)
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ISC_FORMAT_PRINTF(3, 4);
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/*
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* Print 'format' to 'target' which is a pointer to a string of at least
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* 'size' bytes.
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*
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* Requires:
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* 'target' is a pointer to a char[] of at least 'size' bytes.
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* 'size' an integer > 0.
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* 'format' == NULL or points to a NUL terminated string.
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*
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* Ensures:
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* If result == ISC_R_SUCCESS
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* 'target' will be a NUL terminated string of no more
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* than 'size' bytes (including NUL).
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*
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* If result == ISC_R_NOSPACE
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* 'target' is undefined.
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*
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* Returns:
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* ISC_R_SUCCESS -- 'format' was successfully printed to 'target'.
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* ISC_R_NOSPACE -- 'format' could not be printed to 'target' since it
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* is too small.
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*/
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void
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isc_string_printf_truncate(char *target, size_t size, const char *format, ...)
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ISC_FORMAT_PRINTF(3, 4);
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/*
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* Print 'format' to 'target' which is a pointer to a string of at least
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* 'size' bytes.
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*
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* Requires:
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* 'target' is a pointer to a char[] of at least 'size' bytes.
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* 'size' an integer > 0.
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* 'format' == NULL or points to a NUL terminated string.
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*
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* Ensures:
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* 'target' will be a NUL terminated string of no more
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* than 'size' bytes (including NUL).
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*/
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char *
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isc_string_regiondup(isc_mem_t *mctx, const isc_region_t *source);
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/*
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* Copy the region pointed to by r to a NUL terminated string
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* allocated from the memory context pointed to by mctx.
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*
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* The result should be deallocated using isc_mem_free()
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*
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* Requires:
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* 'mctx' is a point to a valid memory context.
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* 'source' is a pointer to a valid region.
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*
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* Returns:
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* a pointer to a NUL terminated string or
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* NULL if memory for the copy could not be allocated
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*
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*/
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char *
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isc_string_separate(char **stringp, const char *delim);
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#ifdef ISC_PLATFORM_NEEDSTRSEP
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#define strsep isc_string_separate
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#endif
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#ifdef ISC_PLATFORM_NEEDMEMMOVE
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#define memmove(a,b,c) bcopy(b,a,c)
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#endif
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size_t
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isc_string_strlcpy(char *dst, const char *src, size_t size);
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#ifdef ISC_PLATFORM_NEEDSTRLCPY
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#define strlcpy isc_string_strlcpy
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#endif
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size_t
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isc_string_strlcat(char *dst, const char *src, size_t size);
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#ifdef ISC_PLATFORM_NEEDSTRLCAT
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#define strlcat isc_string_strlcat
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#endif
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char *
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isc_string_strcasestr(const char *big, const char *little);
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#ifdef ISC_PLATFORM_NEEDSTRCASESTR
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#define strcasestr isc_string_strcasestr
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#endif
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ISC_LANG_ENDDECLS
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#endif /* ISC_STRING_H */
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