diff options
Diffstat (limited to 'lib/libss/request_tbl.c')
-rw-r--r-- | lib/libss/request_tbl.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/lib/libss/request_tbl.c b/lib/libss/request_tbl.c new file mode 100644 index 0000000..8dcb583 --- /dev/null +++ b/lib/libss/request_tbl.c @@ -0,0 +1,63 @@ +/* + * Copyright 1987, 1988 by MIT Student Information Processing Board + * + * For copyright information, see copyright.h. + */ + +#include "copyright.h" +#include "ss_internal.h" + +#define ssrt ss_request_table /* for some readable code... */ + +ss_add_request_table(sci_idx, rqtbl_ptr, position, code_ptr) + int sci_idx; + ssrt *rqtbl_ptr; + int position; /* 1 -> becomes second... */ + int *code_ptr; +{ + register ss_data *info; + register int i, size; + + info = ss_info(sci_idx); + for (size=0; info->rqt_tables[size] != (ssrt *)NULL; size++) + ; + /* size == C subscript of NULL == #elements */ + size += 2; /* new element, and NULL */ + info->rqt_tables = (ssrt **)realloc((char *)info->rqt_tables, + (unsigned)size*sizeof(ssrt)); + if (info->rqt_tables == (ssrt **)NULL) { + *code_ptr = errno; + return; + } + if (position > size - 2) + position = size - 2; + + if (size > 1) + for (i = size - 2; i >= position; i--) + info->rqt_tables[i+1] = info->rqt_tables[i]; + + info->rqt_tables[position] = rqtbl_ptr; + info->rqt_tables[size-1] = (ssrt *)NULL; + *code_ptr = 0; +} + +ss_delete_request_table(sci_idx, rqtbl_ptr, code_ptr) + int sci_idx; + ssrt *rqtbl_ptr; + int *code_ptr; +{ + register ss_data *info; + register ssrt **rt1, **rt2; + + *code_ptr = SS_ET_TABLE_NOT_FOUND; + info = ss_info(sci_idx); + rt1 = info->rqt_tables; + for (rt2 = rt1; *rt1; rt1++) { + if (*rt1 != rqtbl_ptr) { + *rt2++ = *rt1; + *code_ptr = 0; + } + } + *rt2 = (ssrt *)NULL; + return; +} |