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47 lines
1.5 KiB
C++
47 lines
1.5 KiB
C++
/*******************************************************************************
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Copyright(C) Jonas 'Sortie' Termansen 2011, 2012.
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This file is part of the Sortix C Library.
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The Sortix C Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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The Sortix C Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
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stdio/fgets.cpp
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Reads a string from a FILE.
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*******************************************************************************/
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#include <stdio.h>
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#include <errno.h>
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extern "C" char* fgets(char* dest, int size, FILE* fp)
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{
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if ( size <= 0 )
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return errno = EINVAL, (char*) NULL;
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int i;
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for ( i = 0; i < size-1; i++ )
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{
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int c = getc(fp);
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if ( c == EOF )
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break;
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dest[i] = c;
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if ( c == '\n' ) { i++; break; }
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}
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if ( !i && (ferror(fp) || feof(fp)) )
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return NULL;
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// TODO: The end-of-file state is lost here if feof(fp) and we are reading
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// from a terminal that encountered a soft EOF.
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dest[i] = '\0';
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return dest;
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}
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