Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 1987, 1988 by MIT Student Information Processing Board |
| 3 | * |
Theodore Ts'o | 06cefee | 1999-10-23 01:16:22 +0000 | [diff] [blame] | 4 | * Permission to use, copy, modify, and distribute this software and |
| 5 | * its documentation for any purpose is hereby granted, provided that |
| 6 | * the names of M.I.T. and the M.I.T. S.I.P.B. not be used in |
| 7 | * advertising or publicity pertaining to distribution of the software |
| 8 | * without specific, written prior permission. M.I.T. and the |
| 9 | * M.I.T. S.I.P.B. make no representations about the suitability of |
| 10 | * this software for any purpose. It is provided "as is" without |
| 11 | * express or implied warranty. |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 12 | */ |
| 13 | |
Theodore Ts'o | 50e1e10 | 1997-04-26 13:58:21 +0000 | [diff] [blame] | 14 | #ifdef HAVE_ERRNO_H |
| 15 | #include <errno.h> |
| 16 | #endif |
| 17 | |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 18 | #include "ss_internal.h" |
| 19 | |
| 20 | #define ssrt ss_request_table /* for some readable code... */ |
| 21 | |
JP Abgrall | e0ed740 | 2014-03-19 19:08:39 -0700 | [diff] [blame] | 22 | void ss_add_request_table(int sci_idx, ssrt *rqtbl_ptr, int position, int *code_ptr) |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 23 | { |
| 24 | register ss_data *info; |
| 25 | register int i, size; |
Jim Meyering | 671326f | 2009-02-23 18:26:05 +0100 | [diff] [blame] | 26 | ssrt **t; |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 27 | |
| 28 | info = ss_info(sci_idx); |
| 29 | for (size=0; info->rqt_tables[size] != (ssrt *)NULL; size++) |
| 30 | ; |
| 31 | /* size == C subscript of NULL == #elements */ |
| 32 | size += 2; /* new element, and NULL */ |
JP Abgrall | e0ed740 | 2014-03-19 19:08:39 -0700 | [diff] [blame] | 33 | t = (ssrt **)realloc(info->rqt_tables, (unsigned)size*sizeof(ssrt *)); |
Jim Meyering | 671326f | 2009-02-23 18:26:05 +0100 | [diff] [blame] | 34 | if (t == (ssrt **)NULL) { |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 35 | *code_ptr = errno; |
| 36 | return; |
| 37 | } |
Jim Meyering | 671326f | 2009-02-23 18:26:05 +0100 | [diff] [blame] | 38 | info->rqt_tables = t; |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 39 | if (position > size - 2) |
| 40 | position = size - 2; |
| 41 | |
| 42 | if (size > 1) |
| 43 | for (i = size - 2; i >= position; i--) |
| 44 | info->rqt_tables[i+1] = info->rqt_tables[i]; |
| 45 | |
| 46 | info->rqt_tables[position] = rqtbl_ptr; |
| 47 | info->rqt_tables[size-1] = (ssrt *)NULL; |
| 48 | *code_ptr = 0; |
| 49 | } |
| 50 | |
JP Abgrall | e0ed740 | 2014-03-19 19:08:39 -0700 | [diff] [blame] | 51 | void ss_delete_request_table(int sci_idx, ssrt *rqtbl_ptr, int *code_ptr) |
Theodore Ts'o | 3839e65 | 1997-04-26 13:21:57 +0000 | [diff] [blame] | 52 | { |
| 53 | register ss_data *info; |
| 54 | register ssrt **rt1, **rt2; |
| 55 | |
| 56 | *code_ptr = SS_ET_TABLE_NOT_FOUND; |
| 57 | info = ss_info(sci_idx); |
| 58 | rt1 = info->rqt_tables; |
| 59 | for (rt2 = rt1; *rt1; rt1++) { |
| 60 | if (*rt1 != rqtbl_ptr) { |
| 61 | *rt2++ = *rt1; |
| 62 | *code_ptr = 0; |
| 63 | } |
| 64 | } |
| 65 | *rt2 = (ssrt *)NULL; |
| 66 | return; |
| 67 | } |