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121 lines
2.4 KiB
C
121 lines
2.4 KiB
C
/*
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* strutil.c
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*
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* Copyright (C) 2ndQuadrant, 2010-2016
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*
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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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*
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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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*
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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 <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "log.h"
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#include "strutil.h"
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static int
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xvsnprintf(char *str, size_t size, const char *format, va_list ap)
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__attribute__((format(PG_PRINTF_ATTRIBUTE, 3, 0)));
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static int
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xvsnprintf(char *str, size_t size, const char *format, va_list ap)
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{
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int retval;
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retval = vsnprintf(str, size, format, ap);
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if (retval >= (int) size)
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{
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log_err(_("Buffer of size not large enough to format entire string '%s'\n"),
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str);
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exit(ERR_STR_OVERFLOW);
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}
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return retval;
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}
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int
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xsnprintf(char *str, size_t size, const char *format,...)
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{
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va_list arglist;
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int retval;
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va_start(arglist, format);
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retval = xvsnprintf(str, size, format, arglist);
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va_end(arglist);
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return retval;
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}
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int
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sqlquery_snprintf(char *str, const char *format,...)
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{
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va_list arglist;
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int retval;
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va_start(arglist, format);
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retval = xvsnprintf(str, QUERY_STR_LEN, format, arglist);
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va_end(arglist);
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return retval;
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}
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int
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maxlen_snprintf(char *str, const char *format,...)
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{
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va_list arglist;
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int retval;
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va_start(arglist, format);
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retval = xvsnprintf(str, MAXLEN, format, arglist);
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va_end(arglist);
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return retval;
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}
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/*
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* Adapted from: src/fe_utils/string_utils.c
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*
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* Function not publicly available before PostgreSQL 9.6.
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*/
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void
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appendShellString(PQExpBuffer buf, const char *str)
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{
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const char *p;
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appendPQExpBufferChar(buf, '\'');
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for (p = str; *p; p++)
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{
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if (*p == '\n' || *p == '\r')
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{
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fprintf(stderr,
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_("shell command argument contains a newline or carriage return: \"%s\"\n"),
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str);
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exit(ERR_BAD_CONFIG);
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}
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if (*p == '\'')
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appendPQExpBufferStr(buf, "'\"'\"'");
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else
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appendPQExpBufferChar(buf, *p);
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}
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appendPQExpBufferChar(buf, '\'');
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}
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