python/RISCOS/unixstuff.c at master · fruitegg/python · GitHub

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/* Fudge unix isatty and fileno for RISCOS */

#include "unixstuff.h"

#include <math.h>

#include <time.h>

#include "oslib/osfile.h"

int fileno(FILE *f)

{ return (int)f;

}

int isatty(int fn)

{ return (fn==fileno(stdin));

}

bits unixtime(bits ld,bits ex)

{ ld&=0xFF;

ld-=51;

if(ex<1855547904U) ld--;

ex-=1855548004U;

return ex/100+42949673U*ld-ld/25;

}

/* from RISC OS infozip, preserves filetype in ld */

int acorntime(bits *ex, bits *ld, time_t utime)

{

unsigned timlo; /* 3 lower bytes of acorn file-time plus carry byte */

unsigned timhi; /* 2 high bytes of acorn file-time */

timlo = ((unsigned)utime & 0x00ffffffU) * 100 + 0x00996a00U;

timhi = ((unsigned)utime >> 24);

timhi = timhi * 100 + 0x0000336eU + (timlo >> 24);

if (timhi & 0xffff0000U)

return 1; /* calculation overflow, do not change time */

/* insert the five time bytes into loadaddr and execaddr variables */

*ex = (timlo & 0x00ffffffU) | ((timhi & 0x000000ffU) << 24);

*ld = (*ld & 0xffffff00U) | ((timhi >> 8) & 0x000000ffU);

return 0; /* subject to future extension to signal overflow */

}

int isdir(char *fn)

{ int ob;

if(xosfile_read_stamped_no_path(fn,&ob,0,0,0,0,0)) return 0;

switch (ob)

{ case osfile_IS_DIR:return 1;

case osfile_IS_IMAGE:return 1;

}

return 0;

}

int isfile(char *fn)

{ int ob;

if(xosfile_read_stamped_no_path(fn,&ob,0,0,0,0,0)) return 0;

switch (ob)

{ case osfile_IS_FILE:return 1;

case osfile_IS_IMAGE:return 1;

}

return 0;

}

int object_exists(char *fn)

{ int ob;

if(xosfile_read_stamped_no_path(fn,&ob,0,0,0,0,0)) return 0;

switch (ob)

{ case osfile_IS_FILE:return 1;

case osfile_IS_DIR:return 1;

case osfile_IS_IMAGE:return 1;

}

return 0;

}

python/RISCOS/unixstuff.c at master · fruitegg/python · GitHub

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