1 /****************************************************************************
2 * Copyright 2020 Thomas E. Dickey *
3 * Copyright 1998-2010,2012 Free Software Foundation, Inc. *
4 * *
5 * Permission is hereby granted, free of charge, to any person obtaining a *
6 * copy of this software and associated documentation files (the *
7 * "Software"), to deal in the Software without restriction, including *
8 * without limitation the rights to use, copy, modify, merge, publish, *
9 * distribute, distribute with modifications, sublicense, and/or sell *
10 * copies of the Software, and to permit persons to whom the Software is *
11 * furnished to do so, subject to the following conditions: *
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13 * The above copyright notice and this permission notice shall be included *
14 * in all copies or substantial portions of the Software. *
15 * *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
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28 ****************************************************************************/
29
30 /****************************************************************************
31 * Author: Juergen Pfeifer, 1995,1997 *
32 ****************************************************************************/
33
34 #include "form.priv.h"
35
36 MODULE_ID("$Id: fld_dup.c,v 1.18 2020/05/24 01:40:20 anonymous.maarten Exp $")
37
38 /*---------------------------------------------------------------------------
39 | Facility : libnform
40 | Function : FIELD *dup_field(FIELD *field, int frow, int fcol)
41 |
42 | Description : Duplicates the field at the specified position. All
43 | field attributes and the buffers are copied.
44 | If an error occurs, errno is set to
45 |
46 | E_BAD_ARGUMENT - invalid argument
47 | E_SYSTEM_ERROR - system error
48 |
49 | Return Values : Pointer to the new field or NULL if failure
50 +--------------------------------------------------------------------------*/
FORM_EXPORT(FIELD *)51 FORM_EXPORT(FIELD *)
52 dup_field(FIELD *field, int frow, int fcol)
53 {
54 FIELD *New_Field = (FIELD *)0;
55 int err = E_BAD_ARGUMENT;
56
57 T((T_CALLED("dup_field(%p,%d,%d)"), (void *)field, frow, fcol));
58 if (field && (frow >= 0) && (fcol >= 0) &&
59 ((err = E_SYSTEM_ERROR) != 0) && /* trick : this resets the default error */
60 (New_Field = typeMalloc(FIELD, 1)))
61 {
62 T((T_CREATE("field %p"), (void *)New_Field));
63 *New_Field = *_nc_Default_Field;
64 New_Field->frow = (short)frow;
65 New_Field->fcol = (short)fcol;
66 New_Field->link = New_Field;
67 New_Field->rows = field->rows;
68 New_Field->cols = field->cols;
69 New_Field->nrow = field->nrow;
70 New_Field->drows = field->drows;
71 New_Field->dcols = field->dcols;
72 New_Field->maxgrow = field->maxgrow;
73 New_Field->nbuf = field->nbuf;
74 New_Field->just = field->just;
75 New_Field->fore = field->fore;
76 New_Field->back = field->back;
77 New_Field->pad = field->pad;
78 New_Field->opts = field->opts;
79 New_Field->usrptr = field->usrptr;
80
81 if (_nc_Copy_Type(New_Field, field))
82 {
83 size_t len;
84
85 len = Total_Buffer_Size(New_Field);
86 if ((New_Field->buf = (FIELD_CELL *)malloc(len * 20)))
87 {
88 memcpy(New_Field->buf, field->buf, len);
89 returnField(New_Field);
90 }
91 }
92 }
93
94 if (New_Field)
95 free_field(New_Field);
96
97 SET_ERROR(err);
98 returnField((FIELD *)0);
99 }
100
101 /* fld_dup.c ends here */
102