/* * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * Redistribution and use in source and binary forms are permitted * provided that the above copyright notice and this paragraph are * duplicated in all such forms and that any documentation, * advertising materials, and other materials related to such * distribution and use acknowledge that the software was developed * by the University of California, Berkeley. The name of the * University may not be used to endorse or promote products derived * from this software without specific prior written permission. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. */ /* FUNCTION <>, <>, <>---scan and format non-floating input INDEX iscanf INDEX _iscanf_r INDEX fiscanf INDEX _fiscanf_r INDEX siscanf INDEX _siscanf_r SYNOPSIS #include int iscanf(const char *<[format]>, ...); int fiscanf(FILE *<[fd]>, const char *<[format]>, ...); int siscanf(const char *<[str]>, const char *<[format]>, ...); int _iscanf_r(struct _reent *<[ptr]>, const char *<[format]>, ...); int _fiscanf_r(struct _reent *<[ptr]>, FILE *<[fd]>, const char *<[format]>, ...); int _siscanf_r(struct _reent *<[ptr]>, const char *<[str]>, const char *<[format]>, ...); DESCRIPTION <>, <>, and <> are the same as <>, <>, and <> respectively, only that they restrict the available formats to non-floating-point format specifiers. The routines <<_iscanf_r>>, <<_fiscanf_r>>, and <<_siscanf_r>> are reentrant versions of <>, <>, and <> that take an additional first argument pointing to a reentrancy structure. RETURNS <> returns the number of input fields successfully scanned, converted and stored; the return value does not include scanned fields which were not stored. If <> attempts to read at end-of-file, the return value is <>. If no fields were stored, the return value is <<0>>. PORTABILITY <>, <>, and <> are newlib extensions. Supporting OS subroutines required: <>, <>, <>, <>, <>, <>, <>. */ #include <_ansi.h> #include #include #include #ifdef _HAVE_STDC #include #else #include #endif #include "local.h" #ifndef _REENT_ONLY #ifdef _HAVE_STDC int _DEFUN(siscanf, (str, fmt), _CONST char *str _AND _CONST char *fmt _DOTS) #else int siscanf(str, fmt, va_alist) _CONST char *str; _CONST char *fmt; va_dcl #endif { int ret; va_list ap; FILE f; f._flags = __SRD | __SSTR; f._bf._base = f._p = (unsigned char *) str; f._bf._size = f._r = strlen (str); f._read = __seofread; f._ub._base = NULL; f._lb._base = NULL; f._file = -1; /* No file. */ #ifdef _HAVE_STDC va_start (ap, fmt); #else va_start (ap); #endif ret = __ssvfiscanf_r (_REENT, &f, fmt, ap); va_end (ap); return ret; } #endif /* !_REENT_ONLY */ #ifdef _HAVE_STDC int _DEFUN(_siscanf_r, (ptr, str, fmt), struct _reent *ptr _AND _CONST char *str _AND _CONST char *fmt _DOTS) #else int _siscanf_r(ptr, str, fmt, va_alist) struct _reent *ptr; _CONST char *str; _CONST char *fmt; va_dcl #endif { int ret; va_list ap; FILE f; f._flags = __SRD | __SSTR; f._bf._base = f._p = (unsigned char *) str; f._bf._size = f._r = strlen (str); f._read = __seofread; f._ub._base = NULL; f._lb._base = NULL; f._file = -1; /* No file. */ #ifdef _HAVE_STDC va_start (ap, fmt); #else va_start (ap); #endif ret = __ssvfiscanf_r (ptr, &f, fmt, ap); va_end (ap); return ret; }