253 static ssize_t (*iread_fnc) (int fd, char *buf, idx_t size);
1104 iread (int fd, char *buf, idx_t size)  in iread()  argument
1112       nread = read (fd, buf, size);  in iread()
1116           && 0 < prev_nread && prev_nread < size  in iread()
1126   if (0 < nread && nread < size)  in iread()
1131       if (0 < prev_nread && prev_nread < size)  in iread()
1151 iread_fullblock (int fd, char *buf, idx_t size)  in iread_fullblock()  argument
1155   while (0 < size)  in iread_fullblock()
1157       ssize_t ncurr = iread (fd, buf, size);  in iread_fullblock()
1164       size  -= ncurr;  in iread_fullblock()
1176 iwrite (int fd, char const *buf, idx_t size)  in iwrite()  argument
1180   if ((output_flags & O_DIRECT) && size < output_blocksize)  in iwrite()
1204   while (total_written < size)  in iwrite()
1211       if ((conversions_mask & C_SPARSE) && is_nul (buf, size))  in iwrite()
1213           if (lseek (fd, size, SEEK_CUR) < 0)  in iwrite()
1221               nwritten = size;  in iwrite()
1226         nwritten = write (fd, buf + total_written, size - total_written);  in iwrite()
2146               idx_t size = write_records ? output_blocksize : bytes;  in dd_copy()  local
2147               if (iwrite (STDOUT_FILENO, obuf, size) != size)  in dd_copy()
2476       off_t size;  in main()  local
2477       if ((ckd_mul (&size, seek_records, output_blocksize)  in main()
2478            || ckd_add (&size, seek_bytes, size))  in main()
2498           if (iftruncate (STDOUT_FILENO, size) != 0)  in main()
2516                   intmax_t isize = size;  in main()