get_file

SFL
Version 2.11

`get_file_time`

#include "sflfile.h"
time_t
get_file_time (
    const char *filename)

Synopsis

Returns the modification time of the specified file or directory. The returned time is suitable for feeding to localtime().

Source Code - (sflfile.c)

{
#if (defined (WIN32_NOT_IMPLEMENTED))
    /*  This code has been disactivated because it returns incorrect
        values depending on the seasonal clock change.
     */
    unsigned long thi,tlo;
    double  dthi,dtlo;
    double  secs_since_1601, secs_time_t;
    double  delta = 11644473600.;
    double  two_to_32 = 4294967296.;
    HANDLE  handle;
    FILETIME creation, last_access, last_write;

    handle = CreateFile (filename, GENERIC_READ, FILE_SHARE_WRITE,
                         NULL, OPEN_EXISTING, 0, 0);
    if (handle == INVALID_HANDLE_VALUE)
        return (0);
    GetFileTime (handle, &creation, &last_access, &last_write);
    CloseHandle (handle);
    thi = last_write.dwHighDateTime;
    tlo = last_write.dwLowDateTime;
    dthi = (double) thi;
    dtlo = (double) tlo;
    secs_since_1601 = (dthi * two_to_32 + dtlo) / 1.0e7;
    secs_time_t     = secs_since_1601 - delta;
    return ((time_t) secs_time_t);

#else
    struct stat
        stat_buf;

    ASSERT (filename);

#   if (defined (MSDOS_FILESYSTEM))
    if (system_devicename (filename))
        return (0);                     /*  Not allowed on device names      */
#   endif
    if (stat ((char *) filename, &stat_buf) == 0)
        return (stat_buf.st_mtime > 0? stat_buf.st_mtime: 0);
    else
        return (0);
#endif
}

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