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93 lines
2.5 KiB
Plaintext
93 lines
2.5 KiB
Plaintext
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/*
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Unix SMB/CIFS implementation.
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Main metadata server / Spotlight routines / Elasticsearch backend
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Copyright (C) Ralph Boehme 2019
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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%{
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#include "includes.h"
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#include "rpc_server/mdssvc/es_parser.tab.h"
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#define YY_NO_INPUT
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#define mdsyylalloc SMB_MALLOC
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#define mdsyylrealloc SMB_REALLOC
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static char *strip_quote(const char *phrase);
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%}
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%option nounput noyyalloc noyyrealloc prefix="mdsyyl"
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ASC [a-zA-Z0-9_\*\:\-\.]
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U [\x80-\xbf]
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U2 [\xc2-\xdf]
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U3 [\xe0-\xef]
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U4 [\xf0-\xf4]
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SPECIAL [\!\#\$\%\&\'\(\)\+\,\.\/\;\<\=\>\?\@\[\]\^\`\{\}\|\~\\]
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ESCHAR [\"\*]
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BLANK [ \t\n]
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UANY {ASC}|{U2}{U}|{U3}{U}{U}|{U4}{U}{U}{U}
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UONLY {U2}{U}|{U3}{U}{U}|{U4}{U}{U}{U}
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UPHRASE {UANY}|{SPECIAL}|{BLANK}|\\{ESCHAR}
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%%
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InRange return FUNC_INRANGE;
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\$time\.iso return DATE_ISO;
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false {mdsyyllval.bval = false; return BOOLEAN;}
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true {mdsyyllval.bval = true; return BOOLEAN;}
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\" return QUOTE;
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\( return OBRACE;
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\) return CBRACE;
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\&\& return AND;
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\|\| return OR;
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\=\= return EQUAL;
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\!\= return UNEQUAL;
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\= return EQUAL;
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\< return LT;
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\> return GT;
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\, return COMMA;
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{UANY}+ {mdsyyllval.sval = talloc_strdup(talloc_tos(), yytext); return WORD;}
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\"{UPHRASE}+\" {mdsyyllval.sval = strip_quote(yytext); return PHRASE;}
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{BLANK} /* ignore */
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%%
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static char *strip_quote(const char *phrase)
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{
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size_t phrase_len = 0;
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char *stripped_phrase = NULL;
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if (phrase == NULL) {
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return NULL;
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}
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phrase_len = strlen(phrase);
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if (phrase_len < 2 ||
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phrase[0] != '\"' ||
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phrase[phrase_len - 1] != '\"')
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{
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return talloc_strdup(talloc_tos(), phrase);
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}
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phrase++;
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stripped_phrase = talloc_strndup(talloc_tos(), phrase, phrase_len - 2);
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if (stripped_phrase == NULL) {
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return NULL;
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}
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return stripped_phrase;
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}
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