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-rw-r--r--sebhbsd/freebsd/contrib/ntp/sntp/libopts/sort.c340
1 files changed, 340 insertions, 0 deletions
diff --git a/sebhbsd/freebsd/contrib/ntp/sntp/libopts/sort.c b/sebhbsd/freebsd/contrib/ntp/sntp/libopts/sort.c
new file mode 100644
index 0000000..da00334
--- /dev/null
+++ b/sebhbsd/freebsd/contrib/ntp/sntp/libopts/sort.c
@@ -0,0 +1,340 @@
+
+/*
+ * \file sort.c
+ *
+ * This module implements argument sorting.
+ *
+ * @addtogroup autoopts
+ * @{
+ */
+/*
+ * This file is part of AutoOpts, a companion to AutoGen.
+ * AutoOpts is free software.
+ * AutoOpts is Copyright (C) 1992-2015 by Bruce Korb - all rights reserved
+ *
+ * AutoOpts is available under any one of two licenses. The license
+ * in use must be one of these two and the choice is under the control
+ * of the user of the license.
+ *
+ * The GNU Lesser General Public License, version 3 or later
+ * See the files "COPYING.lgplv3" and "COPYING.gplv3"
+ *
+ * The Modified Berkeley Software Distribution License
+ * See the file "COPYING.mbsd"
+ *
+ * These files have the following sha256 sums:
+ *
+ * 8584710e9b04216a394078dc156b781d0b47e1729104d666658aecef8ee32e95 COPYING.gplv3
+ * 4379e7444a0e2ce2b12dd6f5a52a27a4d02d39d247901d3285c88cf0d37f477b COPYING.lgplv3
+ * 13aa749a5b0a454917a944ed8fffc530b784f5ead522b1aacaf4ec8aa55a6239 COPYING.mbsd
+ */
+
+/* = = = START-STATIC-FORWARD = = = */
+static tSuccess
+must_arg(tOptions * opts, char * arg_txt, tOptState * pOS,
+ char ** opt_txt, uint32_t * opt_idx);
+
+static tSuccess
+maybe_arg(tOptions * opts, char * arg_txt, tOptState * pOS,
+ char ** opt_txt, uint32_t * opt_idx);
+
+static tSuccess
+short_opt_ck(tOptions * opts, char * arg_txt, tOptState * pOS,
+ char ** opt_txt, uint32_t * opt_idx);
+/* = = = END-STATIC-FORWARD = = = */
+
+/*
+ * "must_arg" and "maybe_arg" are really similar. The biggest
+ * difference is that "may" will consume the next argument only if it
+ * does not start with a hyphen and "must" will consume it, hyphen or not.
+ */
+static tSuccess
+must_arg(tOptions * opts, char * arg_txt, tOptState * pOS,
+ char ** opt_txt, uint32_t * opt_idx)
+{
+ /*
+ * An option argument is required. Long options can either have
+ * a separate command line argument, or an argument attached by
+ * the '=' character. Figure out which.
+ */
+ switch (pOS->optType) {
+ case TOPT_SHORT:
+ /*
+ * See if an arg string follows the flag character. If not,
+ * the next arg must be the option argument.
+ */
+ if (*arg_txt != NUL)
+ return SUCCESS;
+ break;
+
+ case TOPT_LONG:
+ /*
+ * See if an arg string has already been assigned (glued on
+ * with an `=' character). If not, the next is the opt arg.
+ */
+ if (pOS->pzOptArg != NULL)
+ return SUCCESS;
+ break;
+
+ default:
+ return FAILURE;
+ }
+ if (opts->curOptIdx >= opts->origArgCt)
+ return FAILURE;
+
+ opt_txt[ (*opt_idx)++ ] = opts->origArgVect[ (opts->curOptIdx)++ ];
+ return SUCCESS;
+}
+
+static tSuccess
+maybe_arg(tOptions * opts, char * arg_txt, tOptState * pOS,
+ char ** opt_txt, uint32_t * opt_idx)
+{
+ /*
+ * An option argument is optional.
+ */
+ switch (pOS->optType) {
+ case TOPT_SHORT:
+ /*
+ * IF nothing is glued on after the current flag character,
+ * THEN see if there is another argument. If so and if it
+ * does *NOT* start with a hyphen, then it is the option arg.
+ */
+ if (*arg_txt != NUL)
+ return SUCCESS;
+ break;
+
+ case TOPT_LONG:
+ /*
+ * Look for an argument if we don't already have one (glued on
+ * with a `=' character)
+ */
+ if (pOS->pzOptArg != NULL)
+ return SUCCESS;
+ break;
+
+ default:
+ return FAILURE;
+ }
+ if (opts->curOptIdx >= opts->origArgCt)
+ return PROBLEM;
+
+ arg_txt = opts->origArgVect[ opts->curOptIdx ];
+ if (*arg_txt != '-')
+ opt_txt[ (*opt_idx)++ ] = opts->origArgVect[ (opts->curOptIdx)++ ];
+ return SUCCESS;
+}
+
+/*
+ * Process a string of short options glued together. If the last one
+ * does or may take an argument, the do the argument processing and leave.
+ */
+static tSuccess
+short_opt_ck(tOptions * opts, char * arg_txt, tOptState * pOS,
+ char ** opt_txt, uint32_t * opt_idx)
+{
+ while (*arg_txt != NUL) {
+ if (FAILED(opt_find_short(opts, (uint8_t)*arg_txt, pOS)))
+ return FAILURE;
+
+ /*
+ * See if we can have an arg.
+ */
+ if (OPTST_GET_ARGTYPE(pOS->pOD->fOptState) == OPARG_TYPE_NONE) {
+ arg_txt++;
+
+ } else if (pOS->pOD->fOptState & OPTST_ARG_OPTIONAL) {
+ /*
+ * Take an argument if it is not attached and it does not
+ * start with a hyphen.
+ */
+ if (arg_txt[1] != NUL)
+ return SUCCESS;
+
+ arg_txt = opts->origArgVect[ opts->curOptIdx ];
+ if (*arg_txt != '-')
+ opt_txt[ (*opt_idx)++ ] =
+ opts->origArgVect[ (opts->curOptIdx)++ ];
+ return SUCCESS;
+
+ } else {
+ /*
+ * IF we need another argument, be sure it is there and
+ * take it.
+ */
+ if (arg_txt[1] == NUL) {
+ if (opts->curOptIdx >= opts->origArgCt)
+ return FAILURE;
+ opt_txt[ (*opt_idx)++ ] =
+ opts->origArgVect[ (opts->curOptIdx)++ ];
+ }
+ return SUCCESS;
+ }
+ }
+ return SUCCESS;
+}
+
+/*
+ * If the program wants sorted options (separated operands and options),
+ * then this routine will to the trick.
+ */
+LOCAL void
+optionSort(tOptions * opts)
+{
+ char ** opt_txt;
+ char ** ppzOpds;
+ uint32_t optsIdx = 0;
+ uint32_t opdsIdx = 0;
+
+ tOptState os = OPTSTATE_INITIALIZER(DEFINED);
+
+ /*
+ * Disable for POSIX conformance, or if there are no operands.
+ */
+ if ( (getenv("POSIXLY_CORRECT") != NULL)
+ || NAMED_OPTS(opts))
+ return;
+
+ /*
+ * Make sure we can allocate two full-sized arg vectors.
+ */
+ opt_txt = malloc(opts->origArgCt * sizeof(char *));
+ if (opt_txt == NULL)
+ goto exit_no_mem;
+
+ ppzOpds = malloc(opts->origArgCt * sizeof(char *));
+ if (ppzOpds == NULL) {
+ free(opt_txt);
+ goto exit_no_mem;
+ }
+
+ opts->curOptIdx = 1;
+ opts->pzCurOpt = NULL;
+
+ /*
+ * Now, process all the options from our current position onward.
+ * (This allows interspersed options and arguments for the few
+ * non-standard programs that require it.)
+ */
+ for (;;) {
+ char * arg_txt;
+ tSuccess res;
+
+ /*
+ * If we're out of arguments, we're done. Join the option and
+ * operand lists into the original argument vector.
+ */
+ if (opts->curOptIdx >= opts->origArgCt) {
+ errno = 0;
+ goto joinLists;
+ }
+
+ arg_txt = opts->origArgVect[ opts->curOptIdx ];
+ if (*arg_txt != '-') {
+ ppzOpds[ opdsIdx++ ] = opts->origArgVect[ (opts->curOptIdx)++ ];
+ continue;
+ }
+
+ switch (arg_txt[1]) {
+ case NUL:
+ /*
+ * A single hyphen is an operand.
+ */
+ ppzOpds[ opdsIdx++ ] = opts->origArgVect[ (opts->curOptIdx)++ ];
+ continue;
+
+ case '-':
+ /*
+ * Two consecutive hypens. Put them on the options list and then
+ * _always_ force the remainder of the arguments to be operands.
+ */
+ if (arg_txt[2] == NUL) {
+ opt_txt[ optsIdx++ ] =
+ opts->origArgVect[ (opts->curOptIdx)++ ];
+ goto restOperands;
+ }
+ res = opt_find_long(opts, arg_txt+2, &os);
+ break;
+
+ default:
+ /*
+ * If short options are not allowed, then do long
+ * option processing. Otherwise the character must be a
+ * short (i.e. single character) option.
+ */
+ if ((opts->fOptSet & OPTPROC_SHORTOPT) == 0) {
+ res = opt_find_long(opts, arg_txt+1, &os);
+ } else {
+ res = opt_find_short(opts, (uint8_t)arg_txt[1], &os);
+ }
+ break;
+ }
+ if (FAILED(res)) {
+ errno = EINVAL;
+ goto freeTemps;
+ }
+
+ /*
+ * We've found an option. Add the argument to the option list.
+ * Next, we have to see if we need to pull another argument to be
+ * used as the option argument.
+ */
+ opt_txt[ optsIdx++ ] = opts->origArgVect[ (opts->curOptIdx)++ ];
+
+ if (OPTST_GET_ARGTYPE(os.pOD->fOptState) == OPARG_TYPE_NONE) {
+ /*
+ * No option argument. If we have a short option here,
+ * then scan for short options until we get to the end
+ * of the argument string.
+ */
+ if ( (os.optType == TOPT_SHORT)
+ && FAILED(short_opt_ck(opts, arg_txt+2, &os, opt_txt,
+ &optsIdx)) ) {
+ errno = EINVAL;
+ goto freeTemps;
+ }
+
+ } else if (os.pOD->fOptState & OPTST_ARG_OPTIONAL) {
+ switch (maybe_arg(opts, arg_txt+2, &os, opt_txt, &optsIdx)) {
+ case FAILURE: errno = EIO; goto freeTemps;
+ case PROBLEM: errno = 0; goto joinLists;
+ }
+
+ } else {
+ switch (must_arg(opts, arg_txt+2, &os, opt_txt, &optsIdx)) {
+ case PROBLEM:
+ case FAILURE: errno = EIO; goto freeTemps;
+ }
+ }
+ } /* for (;;) */
+
+ restOperands:
+ while (opts->curOptIdx < opts->origArgCt)
+ ppzOpds[ opdsIdx++ ] = opts->origArgVect[ (opts->curOptIdx)++ ];
+
+ joinLists:
+ if (optsIdx > 0)
+ memcpy(opts->origArgVect + 1, opt_txt,
+ (size_t)optsIdx * sizeof(char *));
+ if (opdsIdx > 0)
+ memcpy(opts->origArgVect + 1 + optsIdx, ppzOpds,
+ (size_t)opdsIdx * sizeof(char *));
+
+ freeTemps:
+ free(opt_txt);
+ free(ppzOpds);
+ return;
+
+ exit_no_mem:
+ errno = ENOMEM;
+ return;
+}
+
+/** @}
+ *
+ * Local Variables:
+ * mode: C
+ * c-file-style: "stroustrup"
+ * indent-tabs-mode: nil
+ * End:
+ * end of autoopts/sort.c */
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-23 19:35:20 +0000