1
2 /**
3 * \file reset.c
4 *
5 * Reset the option state to the compiled state.
6 *
7 * @addtogroup autoopts
8 * @{
9 */
10 /*
11 * This file is part of AutoOpts, a companion to AutoGen.
12 * AutoOpts is free software.
13 * AutoOpts is Copyright (C) 1992-2018 by Bruce Korb - all rights reserved
14 *
15 * AutoOpts is available under any one of two licenses. The license
16 * in use must be one of these two and the choice is under the control
17 * of the user of the license.
18 *
19 * The GNU Lesser General Public License, version 3 or later
20 * See the files "COPYING.lgplv3" and "COPYING.gplv3"
21 *
22 * The Modified Berkeley Software Distribution License
23 * See the file "COPYING.mbsd"
24 *
25 * These files have the following sha256 sums:
26 *
27 * 8584710e9b04216a394078dc156b781d0b47e1729104d666658aecef8ee32e95 COPYING.gplv3
28 * 4379e7444a0e2ce2b12dd6f5a52a27a4d02d39d247901d3285c88cf0d37f477b COPYING.lgplv3
29 * 13aa749a5b0a454917a944ed8fffc530b784f5ead522b1aacaf4ec8aa55a6239 COPYING.mbsd
30 */
31
32 static void
optionReset(tOptions * pOpts,tOptDesc * pOD)33 optionReset(tOptions * pOpts, tOptDesc * pOD)
34 {
35 pOD->fOptState &= OPTST_PERSISTENT_MASK;
36 pOD->fOptState |= OPTST_RESET;
37 if (pOD->pOptProc != NULL)
38 pOD->pOptProc(pOpts, pOD);
39 pOD->optArg.argString =
40 pOpts->originalOptArgArray[ pOD->optIndex ].argString;
41 pOD->optCookie = pOpts->originalOptArgCookie[ pOD->optIndex ];
42 pOD->fOptState &= OPTST_PERSISTENT_MASK;
43 }
44
45
46 static void
optionResetEverything(tOptions * pOpts)47 optionResetEverything(tOptions * pOpts)
48 {
49 tOptDesc * pOD = pOpts->pOptDesc;
50 int ct = pOpts->presetOptCt;
51
52 for (;;) {
53 optionReset(pOpts, pOD);
54
55 if (--ct <= 0)
56 break;
57 pOD++;
58 }
59 }
60
61
62 /*=export_func optionResetOpt
63 * private:
64 *
65 * what: Reset the value of an option
66 * arg: + tOptions * + pOpts + program options descriptor +
67 * arg: + tOptDesc * + pOptDesc + the descriptor for this arg +
68 *
69 * doc:
70 * This code will cause another option to be reset to its initial state.
71 * For example, --reset=foo will cause the --foo option to be reset.
72 =*/
73 void
optionResetOpt(tOptions * pOpts,tOptDesc * pOD)74 optionResetOpt(tOptions * pOpts, tOptDesc * pOD)
75 {
76 static bool reset_active = false;
77
78 tOptState opt_state = OPTSTATE_INITIALIZER(DEFINED);
79 char const * pzArg = pOD->optArg.argString;
80 tSuccess succ;
81
82 if (pOpts <= OPTPROC_EMIT_LIMIT)
83 return;
84
85 if (reset_active)
86 return;
87
88 if ( (! HAS_originalOptArgArray(pOpts))
89 || (pOpts->originalOptArgCookie == NULL))
90 ao_bug(zno_reset);
91
92 if ((pzArg == NULL) || (*pzArg == NUL)) {
93 fprintf(stderr, zreset_arg, pOpts->pzProgName, pOD->pz_Name);
94 pOpts->pUsageProc(pOpts, EXIT_FAILURE);
95 /* NOTREACHED */
96 assert(0 == 1);
97 }
98
99 reset_active = true;
100
101 if (pzArg[1] == NUL) {
102 if (*pzArg == '*') {
103 optionResetEverything(pOpts);
104 reset_active = false;
105 return;
106 }
107
108 succ = opt_find_short(pOpts, (uint8_t)*pzArg, &opt_state);
109 if (! SUCCESSFUL(succ)) {
110 fprintf(stderr, zIllOptChr, pOpts->pzProgPath, *pzArg);
111 pOpts->pUsageProc(pOpts, EXIT_FAILURE);
112 /* NOTREACHED */
113 assert(0 == 1);
114 }
115 } else {
116 succ = opt_find_long(pOpts, (char *)pzArg, &opt_state);
117 if (! SUCCESSFUL(succ)) {
118 fprintf(stderr, zIllOptStr, pOpts->pzProgPath, pzArg);
119 pOpts->pUsageProc(pOpts, EXIT_FAILURE);
120 /* NOTREACHED */
121 assert(0 == 1);
122 }
123 }
124
125 /*
126 * We've found the indicated option. Turn off all non-persistent
127 * flags because we're forcing the option back to its initialized state.
128 * Call any callout procedure to handle whatever it needs to.
129 * Finally, clear the reset flag, too.
130 */
131 optionReset(pOpts, opt_state.pOD);
132 reset_active = false;
133 }
134 /** @}
135 *
136 * Local Variables:
137 * mode: C
138 * c-file-style: "stroustrup"
139 * indent-tabs-mode: nil
140 * End:
141 * end of autoopts/reset.c */
142