(/home/sate/Testcases/c/cve/wireshark-1.2.0/epan/dfilter/scanner.c) |
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| 2003 | | | YY_BUFFER_STATE df__scan_bytes (yyconst char * yybytes, int _yybytes_len ) |
| 2004 | | | { |
| 2005 | | | YY_BUFFER_STATE b; |
| 2006 | | | char *buf; |
| 2007 | | | yy_size_t n; |
| 2008 | | | int i; |
| 2009 | | | |
| 2010 | | | |
| 2011 | | | n = _yybytes_len + 2; |
| 2012 | | | buf = (char *) df_alloc(n ); |
| 2013 | | | if ( ! buf ) |
| 2014 | | | YY_FATAL_ERROR( "out of dynamic memory in df__scan_bytes()" ); |
| 2015 | | | |
| 2016 | | | for ( i = 0; i < _yybytes_len; ++i ) |
| 2017 | | | buf[i] = yybytes[i]; |
| 2018 | | | |
| 2019 | | | buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR; |
| 2020 | | | |
| 2021 | | | b = df__scan_buffer(buf,n ); |
| 2022 | | | if ( ! b ) |
Redundant Condition
b always evaluates to false. This may be because: - There is a constant assignment to one or more of the variables involved.
- An earlier conditional statement has already ensured that b cannot be true.
- A crashing bug occurs on every path where b could have evaluated to true. Look for a preceding Null Pointer Dereference or Division By Zero warning.
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| 2023 | | | YY_FATAL_ERROR( "bad buffer in df__scan_bytes()" ); |
| 2024 | | | |
| 2025 | | | |
| 2026 | | | |
| 2027 | | | |
| 2028 | | | b->yy_is_our_buffer = 1; |
| 2029 | | | |
| 2030 | | | return b; |
| 2031 | | | } |
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