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74 lines
1.7 KiB
C
74 lines
1.7 KiB
C
/* Fudge unix isatty and fileno for RISCOS */
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#include "unixstuff.h"
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#include <math.h>
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#include <time.h>
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#include "oslib/osfile.h"
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int fileno(FILE *f)
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{ return (int)f;
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}
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int isatty(int fn)
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{ return (fn==fileno(stdin));
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}
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bits unixtime(bits ld,bits ex)
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{ ld&=0xFF;
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ld-=51;
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if(ex<1855547904U) ld--;
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ex-=1855548004U;
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return ex/100+42949673U*ld-ld/25;
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}
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/* from RISC OS infozip, preserves filetype in ld */
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int acorntime(bits *ex, bits *ld, time_t utime)
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{
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unsigned timlo; /* 3 lower bytes of acorn file-time plus carry byte */
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unsigned timhi; /* 2 high bytes of acorn file-time */
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timlo = ((unsigned)utime & 0x00ffffffU) * 100 + 0x00996a00U;
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timhi = ((unsigned)utime >> 24);
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timhi = timhi * 100 + 0x0000336eU + (timlo >> 24);
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if (timhi & 0xffff0000U)
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return 1; /* calculation overflow, do not change time */
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/* insert the five time bytes into loadaddr and execaddr variables */
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*ex = (timlo & 0x00ffffffU) | ((timhi & 0x000000ffU) << 24);
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*ld = (*ld & 0xffffff00U) | ((timhi >> 8) & 0x000000ffU);
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return 0; /* subject to future extension to signal overflow */
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}
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int isdir(char *fn)
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{ int ob;
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if(xosfile_read_stamped_no_path(fn,&ob,0,0,0,0,0)) return 0;
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switch (ob)
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{ case osfile_IS_DIR:return 1;
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case osfile_IS_IMAGE:return 1;
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}
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return 0;
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}
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int isfile(char *fn)
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{ int ob;
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if(xosfile_read_stamped_no_path(fn,&ob,0,0,0,0,0)) return 0;
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switch (ob)
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{ case osfile_IS_FILE:return 1;
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case osfile_IS_IMAGE:return 1;
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}
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return 0;
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}
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int object_exists(char *fn)
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{ int ob;
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if(xosfile_read_stamped_no_path(fn,&ob,0,0,0,0,0)) return 0;
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switch (ob)
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{ case osfile_IS_FILE:return 1;
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case osfile_IS_DIR:return 1;
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case osfile_IS_IMAGE:return 1;
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}
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return 0;
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}
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