68ba7e87e7
Security: CVE-2015-7973, CVE-2015-7974, CVE-2015-7975 Security: CVE-2015-7976, CVE-2015-7977, CVE-2015-7978 Security: CVE-2015-7979, CVE-2015-8138, CVE-2015-8139 Security: CVE-2015-8140, CVE-2015-8158 With hat: so
939 lines
24 KiB
C
939 lines
24 KiB
C
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/**
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* \file nested.c
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*
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* Handle options with arguments that contain nested values.
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*
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* @addtogroup autoopts
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* @{
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*/
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/*
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* Automated Options Nested Values module.
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*
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* This file is part of AutoOpts, a companion to AutoGen.
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* AutoOpts is free software.
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* AutoOpts is Copyright (C) 1992-2015 by Bruce Korb - all rights reserved
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*
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* AutoOpts is available under any one of two licenses. The license
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* in use must be one of these two and the choice is under the control
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* of the user of the license.
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*
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* The GNU Lesser General Public License, version 3 or later
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* See the files "COPYING.lgplv3" and "COPYING.gplv3"
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*
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* The Modified Berkeley Software Distribution License
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* See the file "COPYING.mbsd"
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*
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* These files have the following sha256 sums:
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*
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* 8584710e9b04216a394078dc156b781d0b47e1729104d666658aecef8ee32e95 COPYING.gplv3
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* 4379e7444a0e2ce2b12dd6f5a52a27a4d02d39d247901d3285c88cf0d37f477b COPYING.lgplv3
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* 13aa749a5b0a454917a944ed8fffc530b784f5ead522b1aacaf4ec8aa55a6239 COPYING.mbsd
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*/
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typedef struct {
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int xml_ch;
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int xml_len;
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char xml_txt[8];
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} xml_xlate_t;
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static xml_xlate_t const xml_xlate[] = {
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{ '&', 4, "amp;" },
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{ '<', 3, "lt;" },
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{ '>', 3, "gt;" },
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{ '"', 5, "quot;" },
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{ '\'',5, "apos;" }
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};
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#ifndef ENOMSG
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#define ENOMSG ENOENT
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#endif
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/* = = = START-STATIC-FORWARD = = = */
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static void
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remove_continuation(char * src);
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static char const *
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scan_q_str(char const * pzTxt);
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static tOptionValue *
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add_string(void ** pp, char const * name, size_t nm_len,
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char const * val, size_t d_len);
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static tOptionValue *
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add_bool(void ** pp, char const * name, size_t nm_len,
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char const * val, size_t d_len);
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static tOptionValue *
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add_number(void ** pp, char const * name, size_t nm_len,
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char const * val, size_t d_len);
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static tOptionValue *
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add_nested(void ** pp, char const * name, size_t nm_len,
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char * val, size_t d_len);
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static char const *
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scan_name(char const * name, tOptionValue * res);
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static char const *
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unnamed_xml(char const * txt);
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static char const *
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scan_xml_name(char const * name, size_t * nm_len, tOptionValue * val);
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static char const *
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find_end_xml(char const * src, size_t nm_len, char const * val, size_t * len);
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static char const *
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scan_xml(char const * xml_name, tOptionValue * res_val);
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static void
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sort_list(tArgList * arg_list);
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/* = = = END-STATIC-FORWARD = = = */
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/**
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* Backslashes are used for line continuations. We keep the newline
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* characters, but trim out the backslash:
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*/
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static void
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remove_continuation(char * src)
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{
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char * pzD;
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do {
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while (*src == NL) src++;
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pzD = strchr(src, NL);
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if (pzD == NULL)
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return;
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/*
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* pzD has skipped at least one non-newline character and now
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* points to a newline character. It now becomes the source and
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* pzD goes to the previous character.
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*/
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src = pzD--;
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if (*pzD != '\\')
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pzD++;
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} while (pzD == src);
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/*
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* Start shifting text.
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*/
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for (;;) {
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char ch = ((*pzD++) = *(src++));
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switch (ch) {
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case NUL: return;
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case '\\':
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if (*src == NL)
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--pzD; /* rewrite on next iteration */
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}
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}
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}
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/**
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* Find the end of a quoted string, skipping escaped quote characters.
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*/
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static char const *
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scan_q_str(char const * pzTxt)
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{
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char q = *(pzTxt++); /* remember the type of quote */
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for (;;) {
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char ch = *(pzTxt++);
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if (ch == NUL)
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return pzTxt-1;
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if (ch == q)
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return pzTxt;
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if (ch == '\\') {
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ch = *(pzTxt++);
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/*
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* IF the next character is NUL, drop the backslash, too.
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*/
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if (ch == NUL)
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return pzTxt - 2;
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/*
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* IF the quote character or the escape character were escaped,
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* then skip both, as long as the string does not end.
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*/
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if ((ch == q) || (ch == '\\')) {
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if (*(pzTxt++) == NUL)
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return pzTxt-1;
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}
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}
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}
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}
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/**
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* Associate a name with either a string or no value.
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*
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* @param[in,out] pp argument list to add to
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* @param[in] name the name of the "suboption"
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* @param[in] nm_len the length of the name
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* @param[in] val the string value for the suboption
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* @param[in] d_len the length of the value
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*
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* @returns the new value structure
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*/
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static tOptionValue *
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add_string(void ** pp, char const * name, size_t nm_len,
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char const * val, size_t d_len)
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{
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tOptionValue * pNV;
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size_t sz = nm_len + d_len + sizeof(*pNV);
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pNV = AGALOC(sz, "option name/str value pair");
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if (val == NULL) {
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pNV->valType = OPARG_TYPE_NONE;
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pNV->pzName = pNV->v.strVal;
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} else {
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pNV->valType = OPARG_TYPE_STRING;
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if (d_len > 0) {
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char const * src = val;
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char * pzDst = pNV->v.strVal;
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int ct = (int)d_len;
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do {
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int ch = *(src++) & 0xFF;
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if (ch == NUL) goto data_copy_done;
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if (ch == '&')
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ch = get_special_char(&src, &ct);
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*(pzDst++) = (char)ch;
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} while (--ct > 0);
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data_copy_done:
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*pzDst = NUL;
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} else {
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pNV->v.strVal[0] = NUL;
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}
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pNV->pzName = pNV->v.strVal + d_len + 1;
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}
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memcpy(pNV->pzName, name, nm_len);
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pNV->pzName[ nm_len ] = NUL;
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addArgListEntry(pp, pNV);
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return pNV;
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}
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/**
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* Associate a name with a boolean value
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*
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* @param[in,out] pp argument list to add to
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* @param[in] name the name of the "suboption"
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* @param[in] nm_len the length of the name
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* @param[in] val the boolean value for the suboption
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* @param[in] d_len the length of the value
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*
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* @returns the new value structure
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*/
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static tOptionValue *
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add_bool(void ** pp, char const * name, size_t nm_len,
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char const * val, size_t d_len)
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{
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size_t sz = nm_len + sizeof(tOptionValue) + 1;
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tOptionValue * new_val = AGALOC(sz, "bool val");
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/*
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* Scan over whitespace is constrained by "d_len"
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*/
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while (IS_WHITESPACE_CHAR(*val) && (d_len > 0)) {
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d_len--; val++;
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}
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if (d_len == 0)
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new_val->v.boolVal = 0;
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else if (IS_DEC_DIGIT_CHAR(*val))
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new_val->v.boolVal = (unsigned)atoi(val);
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else new_val->v.boolVal = ! IS_FALSE_TYPE_CHAR(*val);
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new_val->valType = OPARG_TYPE_BOOLEAN;
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new_val->pzName = (char *)(new_val + 1);
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memcpy(new_val->pzName, name, nm_len);
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new_val->pzName[ nm_len ] = NUL;
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addArgListEntry(pp, new_val);
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return new_val;
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}
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/**
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* Associate a name with strtol() value, defaulting to zero.
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*
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* @param[in,out] pp argument list to add to
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* @param[in] name the name of the "suboption"
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* @param[in] nm_len the length of the name
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* @param[in] val the numeric value for the suboption
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* @param[in] d_len the length of the value
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*
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* @returns the new value structure
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*/
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static tOptionValue *
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add_number(void ** pp, char const * name, size_t nm_len,
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char const * val, size_t d_len)
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{
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size_t sz = nm_len + sizeof(tOptionValue) + 1;
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tOptionValue * new_val = AGALOC(sz, "int val");
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/*
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* Scan over whitespace is constrained by "d_len"
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*/
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while (IS_WHITESPACE_CHAR(*val) && (d_len > 0)) {
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d_len--; val++;
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}
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if (d_len == 0)
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new_val->v.longVal = 0;
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else
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new_val->v.longVal = strtol(val, 0, 0);
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new_val->valType = OPARG_TYPE_NUMERIC;
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new_val->pzName = (char *)(new_val + 1);
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memcpy(new_val->pzName, name, nm_len);
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new_val->pzName[ nm_len ] = NUL;
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addArgListEntry(pp, new_val);
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return new_val;
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}
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/**
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* Associate a name with a nested/hierarchical value.
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*
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* @param[in,out] pp argument list to add to
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* @param[in] name the name of the "suboption"
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* @param[in] nm_len the length of the name
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* @param[in] val the nested values for the suboption
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* @param[in] d_len the length of the value
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*
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* @returns the new value structure
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*/
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static tOptionValue *
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add_nested(void ** pp, char const * name, size_t nm_len,
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char * val, size_t d_len)
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{
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tOptionValue * new_val;
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if (d_len == 0) {
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size_t sz = nm_len + sizeof(*new_val) + 1;
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new_val = AGALOC(sz, "empty nest");
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new_val->v.nestVal = NULL;
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new_val->valType = OPARG_TYPE_HIERARCHY;
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new_val->pzName = (char *)(new_val + 1);
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memcpy(new_val->pzName, name, nm_len);
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new_val->pzName[ nm_len ] = NUL;
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} else {
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new_val = optionLoadNested(val, name, nm_len);
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}
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if (new_val != NULL)
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addArgListEntry(pp, new_val);
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return new_val;
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}
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/**
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* We have an entry that starts with a name. Find the end of it, cook it
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* (if called for) and create the name/value association.
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*/
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static char const *
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scan_name(char const * name, tOptionValue * res)
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{
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tOptionValue * new_val;
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char const * pzScan = name+1; /* we know first char is a name char */
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char const * pzVal;
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size_t nm_len = 1;
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size_t d_len = 0;
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/*
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* Scan over characters that name a value. These names may not end
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* with a colon, but they may contain colons.
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*/
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pzScan = SPN_VALUE_NAME_CHARS(name + 1);
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if (pzScan[-1] == ':')
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pzScan--;
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nm_len = (size_t)(pzScan - name);
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pzScan = SPN_HORIZ_WHITE_CHARS(pzScan);
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re_switch:
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switch (*pzScan) {
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case '=':
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case ':':
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pzScan = SPN_HORIZ_WHITE_CHARS(pzScan + 1);
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if ((*pzScan == '=') || (*pzScan == ':'))
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goto default_char;
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goto re_switch;
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case NL:
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case ',':
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pzScan++;
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/* FALLTHROUGH */
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case NUL:
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add_string(&(res->v.nestVal), name, nm_len, NULL, (size_t)0);
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break;
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case '"':
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case '\'':
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pzVal = pzScan;
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pzScan = scan_q_str(pzScan);
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d_len = (size_t)(pzScan - pzVal);
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new_val = add_string(&(res->v.nestVal), name, nm_len, pzVal,
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d_len);
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if ((new_val != NULL) && (option_load_mode == OPTION_LOAD_COOKED))
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ao_string_cook(new_val->v.strVal, NULL);
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break;
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default:
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default_char:
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/*
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* We have found some strange text value. It ends with a newline
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* or a comma.
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*/
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pzVal = pzScan;
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for (;;) {
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char ch = *(pzScan++);
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switch (ch) {
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case NUL:
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pzScan--;
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d_len = (size_t)(pzScan - pzVal);
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goto string_done;
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/* FALLTHROUGH */
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case NL:
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if ( (pzScan > pzVal + 2)
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&& (pzScan[-2] == '\\')
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&& (pzScan[ 0] != NUL))
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continue;
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/* FALLTHROUGH */
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case ',':
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d_len = (size_t)(pzScan - pzVal) - 1;
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string_done:
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new_val = add_string(&(res->v.nestVal), name, nm_len,
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pzVal, d_len);
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if (new_val != NULL)
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remove_continuation(new_val->v.strVal);
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goto leave_scan_name;
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}
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}
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break;
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} leave_scan_name:;
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return pzScan;
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}
|
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|
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/**
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* Some xml element that does not start with a name.
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* The next character must be either '!' (introducing a comment),
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* or '?' (introducing an XML meta-marker of some sort).
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* We ignore these and indicate an error (NULL result) otherwise.
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*
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* @param[in] txt the text within an xml bracket
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* @returns the address of the character after the closing marker, or NULL.
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*/
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static char const *
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unnamed_xml(char const * txt)
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{
|
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switch (*txt) {
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default:
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txt = NULL;
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break;
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|
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case '!':
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txt = strstr(txt, "-->");
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if (txt != NULL)
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txt += 3;
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break;
|
|
|
|
case '?':
|
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txt = strchr(txt, '>');
|
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if (txt != NULL)
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txt++;
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break;
|
|
}
|
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return txt;
|
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}
|
|
|
|
/**
|
|
* Scan off the xml element name, and the rest of the header, too.
|
|
* Set the value type to NONE if it ends with "/>".
|
|
*
|
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* @param[in] name the first name character (alphabetic)
|
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* @param[out] nm_len the length of the name
|
|
* @param[out] val set valType field to STRING or NONE.
|
|
*
|
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* @returns the scan resumption point, or NULL on error
|
|
*/
|
|
static char const *
|
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scan_xml_name(char const * name, size_t * nm_len, tOptionValue * val)
|
|
{
|
|
char const * scan = SPN_VALUE_NAME_CHARS(name + 1);
|
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*nm_len = (size_t)(scan - name);
|
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if (*nm_len > 64)
|
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return NULL;
|
|
val->valType = OPARG_TYPE_STRING;
|
|
|
|
if (IS_WHITESPACE_CHAR(*scan)) {
|
|
/*
|
|
* There are attributes following the name. Parse 'em.
|
|
*/
|
|
scan = SPN_WHITESPACE_CHARS(scan);
|
|
scan = parse_attrs(NULL, scan, &option_load_mode, val);
|
|
if (scan == NULL)
|
|
return NULL; /* oops */
|
|
}
|
|
|
|
if (! IS_END_XML_TOKEN_CHAR(*scan))
|
|
return NULL; /* oops */
|
|
|
|
if (*scan == '/') {
|
|
/*
|
|
* Single element XML entries get inserted as an empty string.
|
|
*/
|
|
if (*++scan != '>')
|
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return NULL;
|
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val->valType = OPARG_TYPE_NONE;
|
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}
|
|
return scan+1;
|
|
}
|
|
|
|
/**
|
|
* We've found a closing '>' without a preceding '/', thus we must search
|
|
* the text for '<name/>' where "name" is the name of the XML element.
|
|
*
|
|
* @param[in] name the start of the name in the element header
|
|
* @param[in] nm_len the length of that name
|
|
* @param[out] len the length of the value (string between header and
|
|
* the trailer/tail.
|
|
* @returns the character after the trailer, or NULL if not found.
|
|
*/
|
|
static char const *
|
|
find_end_xml(char const * src, size_t nm_len, char const * val, size_t * len)
|
|
{
|
|
char z[72] = "</";
|
|
char * dst = z + 2;
|
|
|
|
do {
|
|
*(dst++) = *(src++);
|
|
} while (--nm_len > 0); /* nm_len is known to be 64 or less */
|
|
*(dst++) = '>';
|
|
*dst = NUL;
|
|
|
|
{
|
|
char const * res = strstr(val, z);
|
|
|
|
if (res != NULL) {
|
|
char const * end = (option_load_mode != OPTION_LOAD_KEEP)
|
|
? SPN_WHITESPACE_BACK(val, res)
|
|
: res;
|
|
*len = (size_t)(end - val); /* includes trailing white space */
|
|
res = SPN_WHITESPACE_CHARS(res + (dst - z));
|
|
}
|
|
return res;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* We've found a '<' character. We ignore this if it is a comment or a
|
|
* directive. If it is something else, then whatever it is we are looking
|
|
* at is bogus. Returning NULL stops processing.
|
|
*
|
|
* @param[in] xml_name the name of an xml bracket (usually)
|
|
* @param[in,out] res_val the option data derived from the XML element
|
|
*
|
|
* @returns the place to resume scanning input
|
|
*/
|
|
static char const *
|
|
scan_xml(char const * xml_name, tOptionValue * res_val)
|
|
{
|
|
size_t nm_len, v_len;
|
|
char const * scan;
|
|
char const * val_str;
|
|
tOptionValue valu;
|
|
tOptionLoadMode save_mode = option_load_mode;
|
|
|
|
if (! IS_VAR_FIRST_CHAR(*++xml_name))
|
|
return unnamed_xml(xml_name);
|
|
|
|
/*
|
|
* "scan_xml_name()" may change "option_load_mode".
|
|
*/
|
|
val_str = scan_xml_name(xml_name, &nm_len, &valu);
|
|
if (val_str == NULL)
|
|
goto bail_scan_xml;
|
|
|
|
if (valu.valType == OPARG_TYPE_NONE)
|
|
scan = val_str;
|
|
else {
|
|
if (option_load_mode != OPTION_LOAD_KEEP)
|
|
val_str = SPN_WHITESPACE_CHARS(val_str);
|
|
scan = find_end_xml(xml_name, nm_len, val_str, &v_len);
|
|
if (scan == NULL)
|
|
goto bail_scan_xml;
|
|
}
|
|
|
|
/*
|
|
* "scan" now points to where the scan is to resume after returning.
|
|
* It either points after "/>" at the end of the XML element header,
|
|
* or it points after the "</name>" tail based on the name in the header.
|
|
*/
|
|
|
|
switch (valu.valType) {
|
|
case OPARG_TYPE_NONE:
|
|
add_string(&(res_val->v.nestVal), xml_name, nm_len, NULL, 0);
|
|
break;
|
|
|
|
case OPARG_TYPE_STRING:
|
|
{
|
|
tOptionValue * new_val = add_string(
|
|
&(res_val->v.nestVal), xml_name, nm_len, val_str, v_len);
|
|
|
|
if (option_load_mode != OPTION_LOAD_KEEP)
|
|
munge_str(new_val->v.strVal, option_load_mode);
|
|
|
|
break;
|
|
}
|
|
|
|
case OPARG_TYPE_BOOLEAN:
|
|
add_bool(&(res_val->v.nestVal), xml_name, nm_len, val_str, v_len);
|
|
break;
|
|
|
|
case OPARG_TYPE_NUMERIC:
|
|
add_number(&(res_val->v.nestVal), xml_name, nm_len, val_str, v_len);
|
|
break;
|
|
|
|
case OPARG_TYPE_HIERARCHY:
|
|
{
|
|
char * pz = AGALOC(v_len+1, "h scan");
|
|
memcpy(pz, val_str, v_len);
|
|
pz[v_len] = NUL;
|
|
add_nested(&(res_val->v.nestVal), xml_name, nm_len, pz, v_len);
|
|
AGFREE(pz);
|
|
break;
|
|
}
|
|
|
|
case OPARG_TYPE_ENUMERATION:
|
|
case OPARG_TYPE_MEMBERSHIP:
|
|
default:
|
|
break;
|
|
}
|
|
|
|
option_load_mode = save_mode;
|
|
return scan;
|
|
|
|
bail_scan_xml:
|
|
option_load_mode = save_mode;
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/**
|
|
* Deallocate a list of option arguments. This must have been gotten from
|
|
* a hierarchical option argument, not a stacked list of strings. It is
|
|
* an internal call, so it is not validated. The caller is responsible for
|
|
* knowing what they are doing.
|
|
*/
|
|
LOCAL void
|
|
unload_arg_list(tArgList * arg_list)
|
|
{
|
|
int ct = arg_list->useCt;
|
|
char const ** pnew_val = arg_list->apzArgs;
|
|
|
|
while (ct-- > 0) {
|
|
tOptionValue * new_val = (tOptionValue *)VOIDP(*(pnew_val++));
|
|
if (new_val->valType == OPARG_TYPE_HIERARCHY)
|
|
unload_arg_list(new_val->v.nestVal);
|
|
AGFREE(new_val);
|
|
}
|
|
|
|
AGFREE(arg_list);
|
|
}
|
|
|
|
/*=export_func optionUnloadNested
|
|
*
|
|
* what: Deallocate the memory for a nested value
|
|
* arg: + tOptionValue const * + pOptVal + the hierarchical value +
|
|
*
|
|
* doc:
|
|
* A nested value needs to be deallocated. The pointer passed in should
|
|
* have been gotten from a call to @code{configFileLoad()} (See
|
|
* @pxref{libopts-configFileLoad}).
|
|
=*/
|
|
void
|
|
optionUnloadNested(tOptionValue const * opt_val)
|
|
{
|
|
if (opt_val == NULL) return;
|
|
if (opt_val->valType != OPARG_TYPE_HIERARCHY) {
|
|
errno = EINVAL;
|
|
return;
|
|
}
|
|
|
|
unload_arg_list(opt_val->v.nestVal);
|
|
|
|
AGFREE(opt_val);
|
|
}
|
|
|
|
/**
|
|
* This is a _stable_ sort. The entries are sorted alphabetically,
|
|
* but within entries of the same name the ordering is unchanged.
|
|
* Typically, we also hope the input is sorted.
|
|
*/
|
|
static void
|
|
sort_list(tArgList * arg_list)
|
|
{
|
|
int ix;
|
|
int lm = arg_list->useCt;
|
|
|
|
/*
|
|
* This loop iterates "useCt" - 1 times.
|
|
*/
|
|
for (ix = 0; ++ix < lm;) {
|
|
int iy = ix-1;
|
|
tOptionValue * new_v = C(tOptionValue *, arg_list->apzArgs[ix]);
|
|
tOptionValue * old_v = C(tOptionValue *, arg_list->apzArgs[iy]);
|
|
|
|
/*
|
|
* For as long as the new entry precedes the "old" entry,
|
|
* move the old pointer. Stop before trying to extract the
|
|
* "-1" entry.
|
|
*/
|
|
while (strcmp(old_v->pzName, new_v->pzName) > 0) {
|
|
arg_list->apzArgs[iy+1] = VOIDP(old_v);
|
|
old_v = (tOptionValue *)VOIDP(arg_list->apzArgs[--iy]);
|
|
if (iy < 0)
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Always store the pointer. Sometimes it is redundant,
|
|
* but the redundancy is cheaper than a test and branch sequence.
|
|
*/
|
|
arg_list->apzArgs[iy+1] = VOIDP(new_v);
|
|
}
|
|
}
|
|
|
|
/*=
|
|
* private:
|
|
*
|
|
* what: parse a hierarchical option argument
|
|
* arg: + char const * + pzTxt + the text to scan +
|
|
* arg: + char const * + pzName + the name for the text +
|
|
* arg: + size_t + nm_len + the length of "name" +
|
|
*
|
|
* ret_type: tOptionValue *
|
|
* ret_desc: An allocated, compound value structure
|
|
*
|
|
* doc:
|
|
* A block of text represents a series of values. It may be an
|
|
* entire configuration file, or it may be an argument to an
|
|
* option that takes a hierarchical value.
|
|
*
|
|
* If NULL is returned, errno will be set:
|
|
* @itemize @bullet
|
|
* @item
|
|
* @code{EINVAL} the input text was NULL.
|
|
* @item
|
|
* @code{ENOMEM} the storage structures could not be allocated
|
|
* @item
|
|
* @code{ENOMSG} no configuration values were found
|
|
* @end itemize
|
|
=*/
|
|
LOCAL tOptionValue *
|
|
optionLoadNested(char const * text, char const * name, size_t nm_len)
|
|
{
|
|
tOptionValue * res_val;
|
|
|
|
/*
|
|
* Make sure we have some data and we have space to put what we find.
|
|
*/
|
|
if (text == NULL) {
|
|
errno = EINVAL;
|
|
return NULL;
|
|
}
|
|
text = SPN_WHITESPACE_CHARS(text);
|
|
if (*text == NUL) {
|
|
errno = ENOMSG;
|
|
return NULL;
|
|
}
|
|
res_val = AGALOC(sizeof(*res_val) + nm_len + 1, "nest args");
|
|
res_val->valType = OPARG_TYPE_HIERARCHY;
|
|
res_val->pzName = (char *)(res_val + 1);
|
|
memcpy(res_val->pzName, name, nm_len);
|
|
res_val->pzName[nm_len] = NUL;
|
|
|
|
{
|
|
tArgList * arg_list = AGALOC(sizeof(*arg_list), "nest arg l");
|
|
|
|
res_val->v.nestVal = arg_list;
|
|
arg_list->useCt = 0;
|
|
arg_list->allocCt = MIN_ARG_ALLOC_CT;
|
|
}
|
|
|
|
/*
|
|
* Scan until we hit a NUL.
|
|
*/
|
|
do {
|
|
text = SPN_WHITESPACE_CHARS(text);
|
|
if (IS_VAR_FIRST_CHAR(*text))
|
|
text = scan_name(text, res_val);
|
|
|
|
else switch (*text) {
|
|
case NUL: goto scan_done;
|
|
case '<': text = scan_xml(text, res_val);
|
|
if (text == NULL) goto woops;
|
|
if (*text == ',') text++; break;
|
|
case '#': text = strchr(text, NL); break;
|
|
default: goto woops;
|
|
}
|
|
} while (text != NULL); scan_done:;
|
|
|
|
{
|
|
tArgList * al = res_val->v.nestVal;
|
|
if (al->useCt == 0) {
|
|
errno = ENOMSG;
|
|
goto woops;
|
|
}
|
|
if (al->useCt > 1)
|
|
sort_list(al);
|
|
}
|
|
|
|
return res_val;
|
|
|
|
woops:
|
|
AGFREE(res_val->v.nestVal);
|
|
AGFREE(res_val);
|
|
return NULL;
|
|
}
|
|
|
|
/*=export_func optionNestedVal
|
|
* private:
|
|
*
|
|
* what: parse a hierarchical option argument
|
|
* arg: + tOptions * + opts + program options descriptor +
|
|
* arg: + tOptDesc * + od + the descriptor for this arg +
|
|
*
|
|
* doc:
|
|
* Nested value was found on the command line
|
|
=*/
|
|
void
|
|
optionNestedVal(tOptions * opts, tOptDesc * od)
|
|
{
|
|
if (opts < OPTPROC_EMIT_LIMIT)
|
|
return;
|
|
|
|
if (od->fOptState & OPTST_RESET) {
|
|
tArgList * arg_list = od->optCookie;
|
|
int ct;
|
|
char const ** av;
|
|
|
|
if (arg_list == NULL)
|
|
return;
|
|
ct = arg_list->useCt;
|
|
av = arg_list->apzArgs;
|
|
|
|
while (--ct >= 0) {
|
|
void * p = VOIDP(*(av++));
|
|
optionUnloadNested((tOptionValue const *)p);
|
|
}
|
|
|
|
AGFREE(od->optCookie);
|
|
|
|
} else {
|
|
tOptionValue * opt_val = optionLoadNested(
|
|
od->optArg.argString, od->pz_Name, strlen(od->pz_Name));
|
|
|
|
if (opt_val != NULL)
|
|
addArgListEntry(&(od->optCookie), VOIDP(opt_val));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* get_special_char
|
|
*/
|
|
LOCAL int
|
|
get_special_char(char const ** ppz, int * ct)
|
|
{
|
|
char const * pz = *ppz;
|
|
char * rz;
|
|
|
|
if (*ct < 3)
|
|
return '&';
|
|
|
|
if (*pz == '#') {
|
|
int base = 10;
|
|
int retch;
|
|
|
|
pz++;
|
|
if (*pz == 'x') {
|
|
base = 16;
|
|
pz++;
|
|
}
|
|
retch = (int)strtoul(pz, &rz, base);
|
|
pz = rz;
|
|
if (*pz != ';')
|
|
return '&';
|
|
base = (int)(++pz - *ppz);
|
|
if (base > *ct)
|
|
return '&';
|
|
|
|
*ct -= base;
|
|
*ppz = pz;
|
|
return retch;
|
|
}
|
|
|
|
{
|
|
int ctr = sizeof(xml_xlate) / sizeof(xml_xlate[0]);
|
|
xml_xlate_t const * xlatp = xml_xlate;
|
|
|
|
for (;;) {
|
|
if ( (*ct >= xlatp->xml_len)
|
|
&& (strncmp(pz, xlatp->xml_txt, (size_t)xlatp->xml_len) == 0)) {
|
|
*ppz += xlatp->xml_len;
|
|
*ct -= xlatp->xml_len;
|
|
return xlatp->xml_ch;
|
|
}
|
|
|
|
if (--ctr <= 0)
|
|
break;
|
|
xlatp++;
|
|
}
|
|
}
|
|
return '&';
|
|
}
|
|
|
|
/**
|
|
* emit_special_char
|
|
*/
|
|
LOCAL void
|
|
emit_special_char(FILE * fp, int ch)
|
|
{
|
|
int ctr = sizeof(xml_xlate) / sizeof(xml_xlate[0]);
|
|
xml_xlate_t const * xlatp = xml_xlate;
|
|
|
|
putc('&', fp);
|
|
for (;;) {
|
|
if (ch == xlatp->xml_ch) {
|
|
fputs(xlatp->xml_txt, fp);
|
|
return;
|
|
}
|
|
if (--ctr <= 0)
|
|
break;
|
|
xlatp++;
|
|
}
|
|
fprintf(fp, XML_HEX_BYTE_FMT, (ch & 0xFF));
|
|
}
|
|
|
|
/** @}
|
|
*
|
|
* Local Variables:
|
|
* mode: C
|
|
* c-file-style: "stroustrup"
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
* end of autoopts/nested.c */
|