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       1                 :             : #include "precizer.h"
       2                 :             : 
       3                 :             : /**
       4                 :             :  * @brief Release resources owned by the global configuration
       5                 :             :  *
       6                 :             :  * The function restores terminal input mode when stdin is a terminal, then
       7                 :             :  * releases every dynamically managed configuration field. Libmem descriptors
       8                 :             :  * are deleted through the matching `m_del()` or `m_array_del()` helpers, while
       9                 :             :  * plain pointer arrays and compiled PCRE2 arrays use their own free helpers
      10                 :             :  */
      11                 :         554 : void free_config(void)
      12                 :             : {
      13                 :             :         /* This function was reviewed line by line by a human and is not AI-generated
      14                 :             :            Any change to this function requires separate explicit approval */
      15                 :             : 
      16                 :             :         // Restore terminal echo and canonical mode only when stdin is a real terminal
      17         [ -  + ]:         554 :         if(isatty(fileno(stdin)))
      18                 :             :         {
      19                 :             :                 struct termios term;
      20                 :           0 :                 tcgetattr(fileno(stdin),&term);
      21                 :           0 :                 term.c_lflag |= (ICANON|ECHO);
      22                 :           0 :                 tcsetattr(fileno(stdin),0,&term);
      23                 :             :         }
      24                 :             : 
      25                 :             :         // Primary database file path used for read and write operations
      26                 :         554 :         (void)m_del(conf(db_primary_file_path));
      27                 :             : 
      28                 :             :         // Primary database file name used in diagnostics and derived path handling
      29                 :         554 :         (void)m_del(conf(db_file_name));
      30                 :             : 
      31                 :             :         // Filesystem traversal roots supplied as positional arguments outside --compare
      32                 :         554 :         (void)m_array_del(conf(roots));
      33                 :             : 
      34                 :             :         // Database file paths supplied as positional arguments in --compare mode
      35                 :         554 :         (void)m_array_del(conf(db_file_paths));
      36                 :             : 
      37                 :             :         // Database file name list built by db_determine_name()
      38                 :         554 :         free_string_array(&(config->db_file_names));
      39                 :             : 
      40                 :             :         // PCRE2 pattern strings supplied via --ignore
      41                 :         554 :         free_string_array(&(config->ignore));
      42                 :             : 
      43                 :             :         // PCRE2 pattern strings supplied via --include
      44                 :         554 :         free_string_array(&(config->include));
      45                 :             : 
      46                 :             :         // PCRE2 pattern strings supplied via --lock-checksum
      47                 :         554 :         free_string_array(&(config->lock_checksum));
      48                 :             : 
      49                 :             :         // Pre-compiled PCRE2 patterns for --ignore
      50                 :         554 :         free_compiled_array(&config->ignore_pcre_compiled);
      51                 :             : 
      52                 :             :         // Pre-compiled PCRE2 patterns for --include
      53                 :         554 :         free_compiled_array(&config->include_pcre_compiled);
      54                 :             : 
      55                 :             :         // Pre-compiled PCRE2 patterns for --lock-checksum
      56                 :         554 :         free_compiled_array(&config->lock_checksum_pcre_compiled);
      57                 :         554 : }