forked from KolibriOS/kolibrios
bd8a5b6e8e
- added strtod(); - added "+" to fopen mode; git-svn-id: svn://kolibrios.org@9230 a494cfbc-eb01-0410-851d-a64ba20cac60
62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
#include <stddef.h>
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#include <sys/ksys.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/dirent.h>
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static FILE* _set_errno(FILE *out, int err){
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errno = err;
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if(out){
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free(out->name);
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free(out);
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}
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out = NULL;
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return out;
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}
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static void _create_file(char *name, FILE *out){
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if(_ksys_file_create(name)){
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_set_errno(out, EIO);
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}
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}
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FILE *freopen(const char *restrict _name, const char *restrict _mode, FILE *restrict out) {
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if(!_name || !_mode || !out){
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return _set_errno(out, EINVAL);
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}
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ksys_bdfe_t info;
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int no_file = _ksys_file_get_info(_name, &info);
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if(!no_file && info.attributes & IS_FOLDER){
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return _set_errno(out, EISDIR);
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}
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out->eof=0;
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out->error=0;
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out->position=0;
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out->name = strdup(_name);
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if (strchr(_mode, 'r')) { out->mode = _FILEMODE_R; }
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if (strchr(_mode, 'w')) { out->mode = _FILEMODE_W; }
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if (strchr(_mode, 'a')) { out->mode = _FILEMODE_A; }
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if (strchr(_mode, '+')) { out->mode |= _FILEMODE_PLUS; }
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if(out->mode & _FILEMODE_A){
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if(no_file){
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_create_file(out->name, out);
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}
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out->position = info.size;
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}else if(out->mode & _FILEMODE_W){
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_create_file(out->name, out);
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}else if((out->mode & _FILEMODE_R)){
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if(no_file){
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_set_errno(out, ENOENT);
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}
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}else{
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_set_errno(out, EINVAL);
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}
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return out;
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} |