tftp-hpa-google/tftpd/remap.h
H. Peter Anvin 351907e3f0 tftpd: handle rule filter flags more cleanly
Instead of a bunch of ad hoc tests, keep a bitmask of flags that would
keep this rule from being executed. This also removes the ugly hack of
converting the request mode between opcode and character encodings for
really no good reason.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2024-05-29 17:28:53 -07:00

44 lines
1.3 KiB
C

/* ----------------------------------------------------------------------- *
*
* Copyright 2001-2007 H. Peter Anvin - All Rights Reserved
*
* This program is free software available under the same license
* as the "OpenBSD" operating system, distributed at
* http://www.openbsd.org/.
*
* ----------------------------------------------------------------------- */
/*
* remap.h
*
* Prototypes for regular-expression based filename remapping.
*/
#ifndef TFTPD_REMAP_H
#define TFTPD_REMAP_H
/* Opaque type */
struct rule;
#ifdef WITH_REGEX
/* This is called when we encounter a substitution like \i. The
macro character is passed as the first argument; the output buffer,
if any, is passed as the second argument. The function should return
the number of characters output, or -1 on failure. */
typedef int (*match_pattern_callback) (char, char *);
/* Read a rule file */
struct rule *parserulefile(FILE *);
/* Destroy a rule file data structure */
void freerules(struct rule *);
/* Execute a rule set on a string; returns a malloc'd new string. */
struct formats;
char *rewrite_string(const struct formats *, const char *,
const struct rule *, int, int,
match_pattern_callback, const char **);
#endif /* WITH_REGEX */
#endif /* TFTPD_REMAP_H */