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Add fgetpos(3) and fsetpos(3).

This commit is contained in:
Jonas 'Sortie' Termansen 2013-04-22 00:29:58 +02:00
parent 3c94199720
commit 12947b0bdf
4 changed files with 69 additions and 4 deletions
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2
libc/Makefile
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@ -203,10 +203,12 @@ fcloseall.o \
fcntl.o \
fddir-sortix.o \
fdio.o \
fgetpos.o \
fileno.o \
fork.o \
fpipe.o \
freopen.o \
fsetpos.o \
fsm_bootstraprootfd.o \
fsm_closechannel.o \
fsm_closeserver.o \

32
libc/fgetpos.cpp Normal file
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@ -0,0 +1,32 @@
/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2013.
This file is part of the Sortix C Library.
The Sortix C 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.
The Sortix C 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 the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
fgetpos.cpp
Get current file position information.
*******************************************************************************/
#include <stdio.h>
extern "C" int fgetpos(FILE* restrict fp, fpos_t* restrict pos)
{
if ( (*pos = ftello(fp)) < 0 )
return -1;
return 0;
}

32
libc/fsetpos.cpp Normal file
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@ -0,0 +1,32 @@
/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2013.
This file is part of the Sortix C Library.
The Sortix C 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.
The Sortix C 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 the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
fsetpos.cpp
Set current file position.
*******************************************************************************/
#include <stdio.h>
extern "C" int fsetpos(FILE* restrict fp, const fpos_t* restrict pos)
{
if ( fseeko(fp, *pos, SEEK_SET) < 0 )
return -1;
return 0;
}

7
libc/include/stdio.h
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@ -40,8 +40,7 @@ __BEGIN_DECLS
@include(NULL.h)
@include(FILE.h)
struct _fpos_t;
typedef struct _fpos_t fpos_t;
typedef off_t fpos_t;
/* TODO: Implement L_ctermid */
#if __POSIX_OBSOLETE <= 200801
@ -80,6 +79,7 @@ extern int ferror(FILE* stream);
extern int fflush(FILE* stream);
extern int fileno(FILE* stream);
extern int fgetc(FILE* stream);
extern int fgetpos(FILE* __restrict stream, fpos_t* __restrict pos);
extern char* fgets(char* __restrict s, int n, FILE* __restrict stream);
extern FILE* fopen(const char* __restrict filename, const char* __restrict mode);
extern int fprintf(FILE* __restrict stream, const char* __restrict format, ...);
@ -90,6 +90,7 @@ extern FILE* freopen(const char* __restrict filename, const char *__restrict mod
extern int fscanf(FILE* __restrict stream, const char* __restrict format, ... );
extern int fseek(FILE* stream, long offset, int whence);
extern int fseeko(FILE* stream, off_t offset, int whence);
extern int fsetpos(FILE* stream, const fpos_t* pos);
extern long ftell(FILE* stream);
extern off_t ftello(FILE* stream);
extern size_t fwrite(const void* __restrict ptr, size_t size, size_t nitems, FILE* __restrict stream);
@ -133,8 +134,6 @@ extern char* ctermid(char* s);
extern FILE *fmemopen(void* __restrict buf, size_t size, const char* __restrict mode);
extern FILE* open_memstream(char** bufp, size_t* sizep);
extern int dprintf(int fildes, const char* __restrict format, ...);
extern int fgetpos(FILE* __restrict stream, fpos_t* __restrict pos);
extern int fsetpos(FILE* stream, const fpos_t* pos);
extern int ftrylockfile(FILE* file);
extern int getchar_unlocked(void);
extern int getc_unlocked(FILE* stream);