src/util.h

   1 #ifndef __UTIL_H
   2 #define __UTIL_H
   3
   4
   5 #include <sys/types.h>
   6
   7 /* String managing functions */
   8
   9 #if defined(SCO_FLAVOR) && defined(__GNUC__)
  10 extern char*g_strdup (const char*);
  11 #endif
  12
  13 int  is_printable (int c);
  14 int  msglen (char *text, int *lines);
  15 char *trim (char *s, char *d, int len);
  16 char *name_quote (const char *c, int quote_percent);
  17 char *fake_name_quote (const char *c, int quote_percent);
  18 char *name_trunc (char *txt, int trunc_len);
  19 char *size_trunc (double size);
  20 char *size_trunc_sep (double size);
  21 void size_trunc_len (char *buffer, int len, off_t size, int units);
  22 int  is_exe (mode_t mode);
  23 char *string_perm (mode_t mode_bits);
  24 char *strip_password (char *path, int has_prefix);
  25 char *strip_home_and_password(char *dir);
  26 char *extension (char *);
  27 char *concat_dir_and_file (const char *dir, const char *file);
  28 char *unix_error_string (int error_num);
  29 char *skip_separators (char *s);
  30 char *skip_numbers (char *s);
  31 char *strip_ctrl_codes (char *s);
  32 char *convert_controls (char *s);
  33 void wipe_password (char *passwd);
  34 char *reverse_string (char *string);
  35 char *resolve_symlinks (char *path);
  36 char *diff_two_paths (char *first, char *second);
  37 int  set_nonblocking (int fd);
  38
  39 char *x_basename (char *s);
  40 char *g_readlink (char *path);
  41
  42 /* Profile managing functions */
  43 int set_int (char *, char *, int);
  44 int get_int (char *, char *, int);
  45
  46 char *load_file (char *filename);
  47 char *load_mc_home_file (const char *filename, char ** allocated_filename);
  48
  49 /* uid/gid managing */
  50 void init_groups (void);
  51 void destroy_groups (void);
  52 int get_user_permissions (struct stat *buf);
  53
  54 void init_uid_gid_cache (void);
  55 char *get_group (int);
  56 char *get_owner (int);
  57
  58 #define MAX_I18NTIMELENGTH 14
  59 #define MIN_I18NTIMELENGTH 10
  60 #define STD_I18NTIMELENGTH 12
  61
  62 size_t i18n_checktimelength (void);
  63 char *file_date (time_t);
  64
  65 char *file_date_pck (time_t);
  66 int exist_file (char *name);
  67
  68 /* Returns a copy of *s until a \n is found and is below top */
  69 char *extract_line (char *s, char *top);
  70 char *_icase_search (char *text, char *data, int *lng);
  71 #define icase_search(T,D) _icase_search((T), (D), NULL)
  72
  73 /* Matching */
  74 enum { match_file, match_normal };
  75 extern int easy_patterns;
  76 char *convert_pattern (char *pattern, int match_type, int do_group);
  77 int regexp_match (char *pattern, char *string, int match_type);
  78
  79 /* Error pipes */
  80 void open_error_pipe (void);
  81 void check_error_pipe (void);
  82 int close_error_pipe (int error, char *text);
  83
  84 /* Process spawning */
  85 void my_putenv (char*, char*);
  86 #define EXECUTE_INTERNAL   1
  87 #define EXECUTE_TEMPFILE   2
  88 #define EXECUTE_AS_SHELL   4
  89 #define EXECUTE_SETUID     8
  90 #define EXECUTE_WAIT      16
  91 int my_system (int flags, const char *shell, const char *command);
  92 int my_system_get_child_pid (int flags, const char *shell, const char *command, pid_t *pid);
  93 void save_stop_handler (void);
  94 extern struct sigaction startup_handler;
  95
  96 /* Tilde expansion */
  97 char *tilde_expand (const char *);
  98
  99 /* Pathname canonicalization */
 100 char *canonicalize_pathname (char *);
 101
 102 /* Misc Unix functions */
 103 long blocks2kilos (int blocks, int bsize);
 104 char *get_current_wd (char *buffer, int size);
 105 int my_mkdir (char *s, mode_t mode);
 106 int my_rmdir (char *s);
 107
 108 /* Rotating dash routines */
 109 void use_dash (int flag); /* Disable/Enable rotate_dash routines */
 110 void rotate_dash (void);
 111 void remove_dash (void);
 112
 113 extern char app_text [];
 114
 115 /* Creating temporary files safely */
 116 void init_tmpdir(void);
 117 int mc_mkstemps(char **pname, const char *prefix, const char *suffix);
 118
 119 enum {
 120         ISGUNZIPABLE_GUNZIP,
 121         ISGUNZIPABLE_BZIP,
 122         ISGUNZIPABLE_BZIP2
 123 };
 124
 125 long int is_gunzipable (int fd, int *type);
 126 char *decompress_command (int type);
 127 char *decompress_extension (int type);
 128 void decompress_command_and_arg (int type, char **cmd, char **flags);
 129
 130 int mc_doublepopen (int inhandle, int inlen, pid_t *tp, char *command, ...);
 131 int mc_doublepclose (int pipehandle, pid_t pid);
 132
 133 /* Hook functions */
 134
 135 typedef struct hook {
 136     void (*hook_fn)(void *);
 137     void *hook_data;
 138     struct hook *next;
 139 } Hook;
 140
 141 void add_hook (Hook **hook_list, void (*hook_fn)(void *), void *data);
 142 void execute_hooks (Hook *hook_list);
 143 void delete_hook (Hook **hook_list, void (*hook_fn)(void *));
 144 int hook_present (Hook *hook_list, void (*hook_fn)(void *));
 145
 146 int max_open_files (void);
 147
 148 #ifdef OS2_NT
 149 #    define PATH_SEP '\\'
 150 #    define PATH_SEP_STR "\\"
 151 #    define PATH_ENV_SEP ';'
 152 #    define TMPDIR_DEFAULT "c:\\temp"
 153 #    define SCRIPT_SUFFIX ".cmd"
 154 #    define OS_SORT_CASE_SENSITIVE_DEFAULT 0
 155 #    define STRCOMP stricmp
 156 #    define STRNCOMP strnicmp
 157 #    define MC_ARCH_FLAGS REG_ICASE
 158      char *get_default_shell (void);
 159      char *get_default_editor (void);
 160      int lstat (const char* pathname, struct stat *buffer);
 161 #else
 162 #    define PATH_SEP '/'
 163 #    define PATH_SEP_STR "/"
 164 #    define PATH_ENV_SEP ':'
 165 #    define TMPDIR_DEFAULT "/tmp"
 166 #    define SCRIPT_SUFFIX ""
 167 #    define get_default_editor() "vi"
 168 #    define OS_SORT_CASE_SENSITIVE_DEFAULT 1
 169 #    define STRCOMP strcmp
 170 #    define STRNCOMP strncmp
 171 #    define MC_ARCH_FLAGS 0
 172 #endif
 173
 174 #include "i18n.h"
 175
 176 /* taken from regex.c: */
 177 /* Jim Meyering writes:
 178
 179    "... Some ctype macros are valid only for character codes that
 180    isascii says are ASCII (SGI's IRIX-4.0.5 is one such system --when
 181    using /bin/cc or gcc but without giving an ansi option).  So, all
 182    ctype uses should be through macros like ISPRINT...  If
 183    STDC_HEADERS is defined, then autoconf has verified that the ctype
 184    macros don't need to be guarded with references to isascii. ...
 185    Defining isascii to 1 should let any compiler worth its salt
 186    eliminate the && through constant folding."  */
 187
 188 #if defined (STDC_HEADERS) || (!defined (isascii) && !defined (HAVE_ISASCII))
 189 #define ISASCII(c) 1
 190 #else
 191 #define ISASCII(c) isascii(c)
 192 #endif
 193
 194 #endif