kolibrios/programs/develop/libraries/kolibri-libc/source/stdio/freopen.c
turbocat 728f124678 Added git source kolibri-libc and
Configured autobuild

git-svn-id: svn://kolibrios.org@8687 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-04-27 16:33:31 +00:00

43 lines
1.2 KiB
C

#include "sys/ksys.h"
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
FILE *freopen(const char *restrict _name, const char *restrict _mode, FILE *restrict out) {
static ksys_bdfe_t info;
info.size=0;
if (!out) {
errno = ENOMEM;
return NULL;
}
_ksys_file_get_info(_name, &info);
out->name = strdup(_name);
out->position = 0;
out->error = 0;
out->eof = 0;
out->kind = 0;
out->orientation = 0;
out->mode = 0;
out->start_size = info.size;
if (strchr(_mode, 'b')) { out->mode |= _STDIO_F_B; }
if (strchr(_mode, 'x')) { out->mode |= _STDIO_F_X; }
if (strchr(_mode, 'a')) { out->mode |= _STDIO_F_A; }
if (strchr(_mode, 'r')) { out->mode |= _STDIO_F_R; }
if (strchr(_mode, 'w')) { out->mode |= _STDIO_F_W; }
if (strchr(_mode, '+')) { out->mode |= _STDIO_F_R | _STDIO_F_W; }
if (out->mode & _STDIO_F_A) {
out->position = info.size;
out->append_offset = info.size;
} else if(out->mode & _STDIO_F_W){
if(_ksys_file_create(_name)){
return NULL;
}
}
return out;
}