compat/precompose_utf8.h

   1 #ifndef PRECOMPOSE_UNICODE_H
   2 #define PRECOMPOSE_UNICODE_H
   3
   4 #include <sys/stat.h>
   5 #include <sys/types.h>
   6 #include <dirent.h>
   7 #include <iconv.h>
   8
   9
  10 typedef struct dirent_prec_psx {
  11         ino_t d_ino;            /* Posix */
  12         size_t max_name_len;    /* See below */
  13         unsigned char d_type;   /* available on all systems git runs on */
  14
  15         /*
  16          * See http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/dirent.h.html
  17          * NAME_MAX + 1 should be enough, but some systems have
  18          * NAME_MAX=255 and strlen(d_name) may return 508 or 510
  19          * Solution: allocate more when needed, see precompose_utf8_readdir()
  20          */
  21         char   d_name[NAME_MAX+1];
  22 } dirent_prec_psx;
  23
  24
  25 typedef struct {
  26         iconv_t ic_precompose;
  27         DIR *dirp;
  28         struct dirent_prec_psx *dirent_nfc;
  29 } PREC_DIR;
  30
  31 const char *precompose_argv_prefix(int argc, const char **argv, const char *prefix);
  32 const char *precompose_string_if_needed(const char *in);
  33 void probe_utf8_pathname_composition(void);
  34
  35 PREC_DIR *precompose_utf8_opendir(const char *dirname);
  36 struct dirent_prec_psx *precompose_utf8_readdir(PREC_DIR *dirp);
  37 int precompose_utf8_closedir(PREC_DIR *dirp);
  38
  39 #ifndef PRECOMPOSE_UNICODE_C
  40 #define dirent dirent_prec_psx
  41 #define opendir(n) precompose_utf8_opendir(n)
  42 #define readdir(d) precompose_utf8_readdir(d)
  43 #define closedir(d) precompose_utf8_closedir(d)
  44 #define DIR PREC_DIR
  45 #endif /* PRECOMPOSE_UNICODE_C */
  46
  47 #endif /* PRECOMPOSE_UNICODE_H */