tftpd/remap.h

   1 /* $Id$ */
   2 /* ----------------------------------------------------------------------- *
   3  *
   4  *   Copyright 2001 H. Peter Anvin - All Rights Reserved
   5  *
   6  *   This program is free software available under the same license
   7  *   as the "OpenBSD" operating system, distributed at
   8  *   http://www.openbsd.org/.
   9  *
  10  * ----------------------------------------------------------------------- */
  11
  12 /*
  13  * remap.h
  14  *
  15  * Prototypes for regular-expression based filename remapping.
  16  */
  17
  18 #ifndef TFTPD_REMAP_H
  19 #define TFTPD_REMAP_H
  20
  21 /* Opaque type */
  22 struct rule;
  23
  24 #ifdef WITH_REGEX
  25
  26 /* This is called when we encounter a substitution like \i.  The
  27    macro character is passed as the first argument; the output buffer,
  28    if any, is passed as the second argument.  The function should return
  29    the number of characters output, or -1 on failure. */
  30 typedef int (*match_pattern_callback)(char, char *);
  31
  32 /* Read a rule file */
  33 struct rule *parserulefile(FILE *);
  34
  35 /* Destroy a rule file data structure */
  36 void freerules(struct rule *);
  37
  38 /* Execute a rule set on a string; returns a malloc'd new string. */
  39 char *rewrite_string(const char *, const struct rule *, int,
  40                      match_pattern_callback, const char **);
  41
  42 #endif /* WITH_REGEX */
  43 #endif /* TFTPD_REMAP_H */
  44