88 lines
2.6 KiB
C
88 lines
2.6 KiB
C
/****************************************************************
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* *
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* Copyright 2001, 2010 Fidelity Information Services, Inc *
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* *
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* This source code contains the intellectual property *
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* of its copyright holder(s), and is made available *
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* under a license. If you do not know the terms of *
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* the license, please stop and do not read further. *
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* *
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****************************************************************/
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#include "mdef.h"
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#include "gtm_ctype.h"
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#include "min_max.h"
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#include "gtm_string.h"
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#include "gtm_strings.h" /* for STRNCASECMP */
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#include "trans_log_name.h"
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#include "iosp.h"
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#include "logical_truth_value.h"
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/* returns the truth value based on the sense indicated by 'negate'.
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* If negate is FALSE (i.e. in regular mode),
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* returns TRUE if the env variable/logical log is defined and evaluates to "TRUE" (or part thereof),
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* or "YES" (or part thereof), or a non zero integer
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* returns FALSE otherwise
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* If negate is TRUE(i.e. in negative mode),
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* returns TRUE if the env variable/logical log is defined and evaluates to "FALSE" (or part thereof),
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* or "NO" (or part thereof), or a zero integer
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* returns FALSE otherwise
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*/
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boolean_t logical_truth_value(mstr *log, boolean_t negate, boolean_t *is_defined)
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{
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int4 status;
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mstr tn;
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char buf[1024];
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boolean_t zero, is_num;
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int index;
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error_def(ERR_LOGTOOLONG);
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error_def(ERR_TRNLOGFAIL);
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tn.addr = buf;
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if (NULL != is_defined)
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*is_defined = FALSE;
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if (SS_NORMAL == (status = TRANS_LOG_NAME(log, &tn, buf, SIZEOF(buf), dont_sendmsg_on_log2long)))
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{
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if (NULL != is_defined)
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*is_defined = TRUE;
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if (tn.len <= 0)
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return FALSE;
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for (is_num = TRUE, zero = TRUE, index = 0; index < tn.len; index++)
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{
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if (!ISDIGIT_ASCII(buf[index]))
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{
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is_num = FALSE;
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break;
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}
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zero = (zero && ('0' == buf[index]));
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}
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if (!negate)
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{ /* regular mode */
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return (!is_num ? (0 == STRNCASECMP(buf, LOGICAL_TRUE, MIN(STR_LIT_LEN(LOGICAL_TRUE), tn.len)) ||
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0 == STRNCASECMP(buf, LOGICAL_YES, MIN(STR_LIT_LEN(LOGICAL_YES), tn.len)))
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: !zero);
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} else
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{ /* negative mode */
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return (!is_num ? (0 == STRNCASECMP(buf, LOGICAL_FALSE, MIN(STR_LIT_LEN(LOGICAL_FALSE), tn.len)) ||
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0 == STRNCASECMP(buf, LOGICAL_NO, MIN(STR_LIT_LEN(LOGICAL_NO), tn.len)))
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: zero);
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}
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} else if (SS_NOLOGNAM == status)
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return (FALSE);
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# ifdef UNIX
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else if (SS_LOG2LONG == status)
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{
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rts_error(VARLSTCNT(5) ERR_LOGTOOLONG, 3, log->len, log->addr, SIZEOF(buf) - 1);
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return (FALSE);
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}
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# endif
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else
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{
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rts_error(VARLSTCNT(5) ERR_TRNLOGFAIL, 2, log->len, log->addr, status);
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return (FALSE);
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}
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}
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