forked from KolibriOS/kolibrios
ffca41d7f9
- Added ungetc, tollower and toupper to export - Fixed ungetc emu - Fixed file io functions - Update file_io test git-svn-id: svn://kolibrios.org@8730 a494cfbc-eb01-0410-851d-a64ba20cac60
53 lines
1.3 KiB
C
53 lines
1.3 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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#define CREATE_FILE() if(_ksys_file_create(_name)){ \
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errno= EIO; \
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free(out); \
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out = NULL; \
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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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errno = EINVAL;
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return NULL;
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}
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if (strchr(_mode, 'r')) { out->mode = _FILEMODE_R; }
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if (strchr(_mode, 'a')) { out->mode = _FILEMODE_A; }
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if (strchr(_mode, 'w')) { out->mode = _FILEMODE_W; }
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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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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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switch (out->mode) {
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case _FILEMODE_A :
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if(no_file){
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CREATE_FILE();
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}
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out->position = info.size;
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break;
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case _FILEMODE_W :
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CREATE_FILE();
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break;
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case _FILEMODE_R :
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if(no_file){
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free(out);
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out = NULL;
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}
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break;
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default:
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free(out);
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out = NULL;
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break;
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}
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return out;
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} |