contrib/libf2c/libI77/uio.c

   1 #include "f2c.h"
   2 #include "fio.h"
   3 #include <sys/types.h>
   4 uiolen f__reclen;
   5
   6 #ifdef KR_headers
   7 do_us(number,ptr,len) ftnint *number; char *ptr; ftnlen len;
   8 #else
   9 do_us(ftnint *number, char *ptr, ftnlen len)
  10 #endif
  11 {
  12         if(f__reading)
  13         {
  14                 f__recpos += (int)(*number * len);
  15                 if(f__recpos>f__reclen)
  16                         err(f__elist->cierr, 110, "do_us");
  17                 if (fread(ptr,(size_t)len,(size_t)(*number),f__cf) != *number)
  18                         err(f__elist->ciend, EOF, "do_us");
  19                 return(0);
  20         }
  21         else
  22         {
  23                 f__reclen += *number * len;
  24                 (void) fwrite(ptr,(size_t)len,(size_t)(*number),f__cf);
  25                 return(0);
  26         }
  27 }
  28 #ifdef KR_headers
  29 integer do_ud(number,ptr,len) ftnint *number; char *ptr; ftnlen len;
  30 #else
  31 integer do_ud(ftnint *number, char *ptr, ftnlen len)
  32 #endif
  33 {
  34         f__recpos += (int)(*number * len);
  35         if(f__recpos > f__curunit->url && f__curunit->url!=1)
  36                 err(f__elist->cierr,110,"do_ud");
  37         if(f__reading)
  38         {
  39 #ifdef Pad_UDread
  40 #ifdef KR_headers
  41         int i;
  42 #else
  43         size_t i;
  44 #endif
  45                 if (!(i = fread(ptr,(size_t)len,(size_t)(*number),f__cf))
  46                  && !(f__recpos - *number*len))
  47                         err(f__elist->cierr,EOF,"do_ud");
  48                 if (i < *number)
  49                         memset(ptr + i*len, 0, (*number - i)*len);
  50                 return 0;
  51 #else
  52                 if(fread(ptr,(size_t)len,(size_t)(*number),f__cf) != *number)
  53                         err(f__elist->cierr,EOF,"do_ud");
  54                 else return(0);
  55 #endif
  56         }
  57         (void) fwrite(ptr,(size_t)len,(size_t)(*number),f__cf);
  58         return(0);
  59 }
  60 #ifdef KR_headers
  61 integer do_uio(number,ptr,len) ftnint *number; char *ptr; ftnlen len;
  62 #else
  63 integer do_uio(ftnint *number, char *ptr, ftnlen len)
  64 #endif
  65 {
  66         if(f__sequential)
  67                 return(do_us(number,ptr,len));
  68         else    return(do_ud(number,ptr,len));
  69 }