tftpd/remap.h

   1 /* ----------------------------------------------------------------------- *
   2  *
   3  *   Copyright 2001-2007 H. Peter Anvin - All Rights Reserved
   4  *
   5  *   This program is free software available under the same license
   6  *   as the "OpenBSD" operating system, distributed at
   7  *   http://www.openbsd.org/.
   8  *
   9  * ----------------------------------------------------------------------- */
  10
  11 /*
  12  * remap.h
  13  *
  14  * Prototypes for regular-expression based filename remapping.
  15  */
  16
  17 #ifndef TFTPD_REMAP_H
  18 #define TFTPD_REMAP_H
  19
  20 /* Opaque type */
  21 struct rule;
  22
  23 #ifdef WITH_REGEX
  24
  25 /* This is called when we encounter a substitution like \i.  The
  26    macro character is passed as the first argument; the output buffer,
  27    if any, is passed as the second argument.  The function should return
  28    the number of characters output, or -1 on failure. */
  29 typedef int (*match_pattern_callback) (char, char *);
  30
  31 /* Read a rule file */
  32 struct rule *parserulefile(FILE *);
  33
  34 /* Destroy a rule file data structure */
  35 void freerules(struct rule *);
  36
  37 /* Execute a rule set on a string; returns a malloc'd new string. */
  38 char *rewrite_string(const char *, const struct rule *, char,
  39                      match_pattern_callback, const char **);
  40
  41 #endif                          /* WITH_REGEX */
  42 #endif                          /* TFTPD_REMAP_H */