Subversion Repositories planix.SVN

/*
 * pANS stdio -- definitions
 * The following names are defined in the pANS:
 *      FILE            fpos_t          _IOFBF          _IOLBF          _IONBF
 *      BUFSIZ          EOF             FOPEN_MAX       FILENAME_MAX    L_tmpnam
 *      SEEK_CUR        SEEK_END        SEEK_SET        TMP_MAX         stderr
 *      stdin           stdout          remove          rename          tmpfile
 *      tmpnam          fclose          fflush          fopen           freopen
 *      setbuf          setvbuf         fprintf         fscanf          printf
 *      scanf           sprintf         sscanf          vfprintf        vprintf
 *      vsprintf        fgetc           fgets           fputc           fputs
 *      getc            getchar         gets            putc            putchar
 *      puts            ungetc          fread           fwrite          fgetpos
 *      fseek           fsetpos         ftell           rewind          clearerr
 *      feof            ferror          perror  
 *
 * (But plan9 version omits remove and rename, because they are in libc)
 */
#include <u.h>
#include <libc.h>
#undef END
#include "Stdio.h"
/*
 * Flag bits
 */
#define BALLOC  1       /* did stdio malloc fd->buf? */
#define LINEBUF 2       /* is stream line buffered? */
#define STRING  4       /* output to string, instead of file */
#define APPEND  8       /* append mode output */
/*
 * States
 */
#define CLOSED  0        /* file not open */
#define OPEN    1       /* file open, but no I/O buffer allocated yet */
#define RDWR    2       /* open, buffer allocated, ok to read or write */
#define RD      3       /* open, buffer allocated, ok to read but not write */
#define WR      4       /* open, buffer allocated, ok to write but not read */
#define ERR     5       /* open, but an uncleared error occurred */
#define END     6       /* open, but at eof */

int _IO_setvbuf(FILE *);

/* half hearted attempt to make multi threaded */
extern QLock _stdiolk;