FM / proftpd

/usr/include/proftpd

Name	Size	Mode	Actions
ascii.h	2674	0644	edit dl rm
auth.h	6381	0644	edit dl rm
base.h	3497	0644	edit dl rm
bindings.h	8027	0644	edit dl rm
buildstamp.h	50	0644	edit dl rm
ccan-json.h	3677	0644	edit dl rm
child.h	1511	0644	edit dl rm
class.h	3096	0644	edit dl rm
cmd.h	4463	0644	edit dl rm
compat.h	1324	0644	edit dl rm
conf.h	3948	0644	edit dl rm
config.h	36627	0644	edit dl rm
configdb.h	5864	0644	edit dl rm
ctrls.h	8524	0644	edit dl rm
data.h	2582	0644	edit dl rm
default_paths.h	3037	0644	edit dl rm
dirtree.h	7648	0644	edit dl rm
display.h	2514	0644	edit dl rm
encode.h	3757	0644	edit dl rm
env.h	1913	0644	edit dl rm
error.h	18894	0644	edit dl rm
event.h	3583	0644	edit dl rm
expr.h	2209	0644	edit dl rm
feat.h	1303	0644	edit dl rm
filter.h	2113	0644	edit dl rm
fsio.h	19528	0644	edit dl rm
ftp.h	9196	0644	edit dl rm
glibc-glob.h	7294	0644	edit dl rm
hanson-tpl.h	4505	0644	edit dl rm
help.h	1265	0644	edit dl rm
ident.h	1334	0644	edit dl rm
inet.h	5395	0644	edit dl rm
jot.h	8736	0644	edit dl rm
json.h	6282	0644	edit dl rm
lastlog.h	1655	0644	edit dl rm
log.h	6822	0644	edit dl rm
logfmt.h	3444	0644	edit dl rm
memcache.h	5056	0644	edit dl rm
mkhome.h	1569	0644	edit dl rm
modules.h	6474	0644	edit dl rm
mod_ctrls.h	4058	0644	edit dl rm
mod_sftp.h	10959	0644	edit dl rm
mod_tls.h	6478	0644	edit dl rm
netacl.h	2571	0644	edit dl rm
netaddr.h	15999	0644	edit dl rm
netio.h	8176	0644	edit dl rm
openbsd-blowfish.h	2967	0644	edit dl rm
options.h	8531	0644	edit dl rm
os.h	7391	0644	edit dl rm
parser.h	6351	0644	edit dl rm
pidfile.h	1331	0644	edit dl rm
pool.h	4138	0644	edit dl rm
pr-syslog.h	3552	0644	edit dl rm
privs.h	2613	0644	edit dl rm
proctitle.h	1682	0644	edit dl rm
proftpd.h	9727	0644	edit dl rm
random.h	1325	0644	edit dl rm
redis.h	15953	0644	edit dl rm
regexp.h	3720	0644	edit dl rm
response.h	3145	0644	edit dl rm
rlimit.h	1873	0644	edit dl rm
scoreboard.h	4760	0644	edit dl rm
session.h	4430	0644	edit dl rm
sets.h	1986	0644	edit dl rm
signals.h	1879	0644	edit dl rm
stash.h	2174	0644	edit dl rm
str.h	5729	0644	edit dl rm
support.h	4494	0644	edit dl rm
table.h	11883	0644	edit dl rm
throttle.h	1299	0644	edit dl rm
timers.h	3370	0644	edit dl rm
trace.h	2421	0644	edit dl rm
utf8.h	1407	0644	edit dl rm
var.h	4419	0644	edit dl rm
version.h	1631	0644	edit dl rm
xferlog.h	1374	0644	edit dl rm

Edit: /usr/include/proftpd/netaddr.h (15999B)

/*
 * ProFTPD - FTP server daemon
 * Copyright (c) 2003-2021 The ProFTPD Project team
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA.
 *
 * As a special exemption, The ProFTPD Project team and other respective
 * copyright holders give permission to link this program with OpenSSL, and
 * distribute the resulting executable, without including the source code for
 * OpenSSL in the source distribution.
 */

/* Network address API */

#ifndef PR_NETADDR_H
#define PR_NETADDR_H

#include "os.h"
#include "pool.h"

#ifndef INET_ADDRSTRLEN
# define INET_ADDRSTRLEN        16
#endif /* INET_ADDRSTRLEN */

#ifndef INET6_ADDRSTRLEN
# define INET6_ADDRSTRLEN       46
#endif /* INET6_ADDRSTRLEN */

struct netaddr_struc {
  int na_family;

/* Note: this assumes that DNS names have a maximum size of
   * 256 characters.
   */
  char na_dnsstr[256];
  int na_have_dnsstr;

#ifdef PR_USE_IPV6
  char na_ipstr[INET6_ADDRSTRLEN];
#else
  char na_ipstr[INET_ADDRSTRLEN];
#endif /* PR_USE_IPV6 */
  int na_have_ipstr;

/* Note: at some point, this union might/should be replaced with
   * struct sockaddr_storage.  Why?  The sockaddr_storage struct is
   * better defined to be aligned on OS/arch boundaries, for more efficient
   * allocation/access.
   */

union {
    struct sockaddr_in v4;
#ifdef PR_USE_IPV6
    struct sockaddr_in6 v6;
#endif /* PR_USE_IPV6 */
  } na_addr;
};

typedef struct netaddr_struc pr_netaddr_t;

#ifndef HAVE_STRUCT_ADDRINFO
struct addrinfo {

/* AI_PASSIVE, AI_CANONNAME */
  int ai_flags;

/* AF/PF_xxx */
  int ai_family;

/* SOCK_xxx */
  int ai_socktype;

/* IPPROTO_xxx for IPv4/v6 */
  int ai_protocol;

/* Length of ai_addr */
  int ai_addrlen;

/* Canonical name for host */
  char *ai_canonname;

/* Binary address */
  struct sockaddr *ai_addr;

/* Next structure in the linked list */
  struct addrinfo *ai_next;
};
#endif /* HAVE_STRUCT_ADDRINFO */

#if defined(HAVE_GETADDRINFO) && !defined(PR_USE_GETADDRINFO)
/* Use the system getaddrinfo(2) and freeaddrinfo(2) by redefining the
 * 'pr_getaddrinfo' and 'pr_freeaddrinfo' symbols to be 'getaddrinfo' and
 * 'freeaddrinfo', respectively.
 */
# define pr_getaddrinfo         getaddrinfo
# define pr_freeaddrinfo        freeaddrinfo
#else
int pr_getaddrinfo(const char *, const char *, const struct addrinfo *,
  struct addrinfo **);
void pr_freeaddrinfo(struct addrinfo *);
#endif /* HAVE_GETNAMEINFO and !PR_USE_GETNAMEINFO */

/* These AI_ defines are for use by getaddrinfo(3). */

/* Indicates that the socket is intended for bind()+listen(). */
#ifndef AI_PASSIVE
# define AI_PASSIVE     1
#endif /* AI_PASSIVE */

/* Return the canonical name. */
#ifndef AI_CANONNAME
# define AI_CANONNAME   2
#endif /* AI_CANONNAME */

/* The following EAI_ defines are for errors. */

/* Host address family not supported. */
#ifndef EAI_ADDRFAMILY
# define EAI_ADDRFAMILY -1
#endif /* EAI_ADDRFAMILY */

/* Temporary failure in name resolution. */
#ifndef EAI_AGAIN
# define EAI_AGAIN      -2
#endif /* EAI_AGAIN */

/* Invalid value for ai_flags. */
#ifndef EAI_BADFLAGS
# define EAI_BADFLAGS   -3
#endif /* EAI_BADFLAGS */

/* Non-recoverable failure in name resolution. */
#ifndef EAI_FAIL
# define EAI_FAIL       -4
#endif /* EAI_FAIL */

/* ai_family not supported. */
#ifndef EAI_FAMILY
# define EAI_FAMILY     -5
#endif /* EAI_FAMILY */

/* Memory allocation failure. */
#ifndef EAI_MEMORY
# define EAI_MEMORY     -6
#endif /* EAI_MEMORY */

/* No address associated with host. */
#ifndef EAI_NODATA
# define EAI_NODATA     -7
#endif /* EAI_NODATA */

/* Host nor service not provided, or not known. */
#ifndef EAI_NONAME
# define EAI_NONAME     -8
#endif /* EAI_NONAME */

/* Service not supported for ai_socktype. */
#ifndef EAI_SERVICE
# define EAI_SERVICE    -9
#endif /* EAI_SERVICE */

/* ai_socktype not supported. */
#ifndef EAI_SOCKTYPE
# define EAI_SOCKTYPE   -10
#endif /* EAI_SOCKTYPE */

/* System error contained in errno. */
#ifndef EAI_SYSTEM
# define EAI_SYSTEM     -11
#endif /* EAI_SYSTEM */

#if defined(HAVE_GETNAMEINFO) && !defined(PR_USE_GETNAMEINFO)
/* Use the system getnameinfo(2) by redefining the 'pr_getnameinfo' symbol
 * to be simply 'getnameinfo'.
 */
# define pr_getnameinfo         getnameinfo
#else
int pr_getnameinfo(const struct sockaddr *, socklen_t, char *, size_t,
  char *, size_t, int);
#endif /* HAVE_GETNAMEINFO and !PR_USE_GETNAMEINFO */

/* These NI_ defines are for use by getnameinfo(3). */

/* Max hostname length returned. */
#ifndef NI_MAXHOST
# define NI_MAXHOST     1025
#endif /* NI_MAXHOST */

/* Max service name length returned. */
#ifndef NI_MAXSERV
# define NI_MAXSERV     32
#endif /* NI_MAXSERV */

/* Do not return FQDNs. */
#ifndef NI_NOFQDN
# define NI_NOFQDN      1
#endif /* NI_NOFQDN */

/* Return the numeric form of the hostname. */
#ifndef NI_NUMERICHOST
# define NI_NUMERICHOST 2
#endif /* NI_NUMERICHOST */

/* Return an error if hostname is not found. */
#ifndef NI_NAMEREQD
# define NI_NAMEREQD    4
#endif /* NI_NAMEREQD */

/* Return the numeric form of the service name. */
#ifndef NI_NUMERICSERV
# define NI_NUMERICSERV 8
#endif /* NI_NUMERICSERV */

/* Datagram service for getservbyname(). */
#ifndef NI_DGRAM
# define NI_DGRAM       16
#endif /* NI_DGRAM */

#if defined(HAVE_INET_NTOP)
/* Use the system inet_ntop(3) by redefining the 'pr_inet_ntop' symbol to be
 * 'inet_ntop'.
 */
# define pr_inet_ntop           inet_ntop
#else
const char *pr_inet_ntop(int, const void *, char *, size_t);
#endif

#if defined(HAVE_INET_PTON)
/* Use the system inet_pton(3) by redefining the 'pr_inet_pton' symbol to be
 * 'inet_pton'.
 */
# define pr_inet_pton           inet_pton
#else
int pr_inet_pton(int, const char *, void *);
#endif

/* Network Address API
 */

/* Allocate an initialized netaddr from the given pool. */
pr_netaddr_t *pr_netaddr_alloc(pool *);

/* Duplicate a netaddr using the given pool. */
pr_netaddr_t *pr_netaddr_dup(pool *, const pr_netaddr_t *);

/* Initialize the given netaddr. */
void pr_netaddr_clear(pr_netaddr_t *);

/* Given a name (either an IP address string or a DNS name), return a
 * pr_netaddr_t * for that name.  In the case of DNS names, multiple
 * addresses might be associated with given name; callers that are interested
 * in these additional addresses should provide a pointer to an array_header *,
 * which will be filled with an array_header (allocated from the given pool)
 * that contains a list of additional pr_netaddr_t *'s.
 *
 * If there is a failure in resolving the given name to its address(es),
 * NULL will be return, and an error logged.
 */
const pr_netaddr_t *pr_netaddr_get_addr(pool *, const char *, array_header **);

/* Like pr_netaddr_get_addr(), with the ability to specify lookup flags. */
const pr_netaddr_t *pr_netaddr_get_addr2(pool *, const char *, array_header **,
  unsigned int);
#define PR_NETADDR_GET_ADDR_FL_INCL_DEVICE	0x001
#define PR_NETADDR_GET_ADDR_FL_EXCL_DNS		0x002
#define PR_NETADDR_GET_ADDR_FL_EXCL_CACHE	0x004

/* Compare the two given pr_netaddr_ts.  In order for the comparison to
 * be accurate, the pr_netaddr_ts must be of the same family (AF_INET or
 * AF_INET6).  In the case where the pr_netaddr_ts are from different
 * families, -1 will be returned, with errno set to EINVAL. Otherwise,
 * the comparison is a fancy memcmp().
 */
int pr_netaddr_cmp(const pr_netaddr_t *, const pr_netaddr_t *);

/* Compare the first N bits of the two given pr_netaddr_ts.  In order for
 * the comparison to be accurate, the pr_netaddr_ts must be of the same family
 * (AF_INET or AF_INET6).  In the case where the pr_netaddr_ts are from
 * different families, -1 will be returned, with errno set to EINVAL.
 * Otherwise, the comparison is a fancy memcmp().
 */
int pr_netaddr_ncmp(const pr_netaddr_t *, const pr_netaddr_t *, unsigned int);

/* Compare the given pr_netaddr_t against a glob pattern, as intended for
 * fnmatch(3).  The flags parameter is an OR of the following values:
 * PR_NETADDR_MATCH_DNS and PR_NETADDR_MATCH_IP.  If the PR_NETADDR_MATCH_DNS
 * flag is used, the given pattern will be matched against the DNS string of
 * the netaddr, if present.  If that doesn't match, and if the
 * PR_NETADDR_MATCH_IP flag is used, a comparison against the IP address string
 * will be tried.  A return value of -1, with errno set to EINVAL, occurs if
 * the netaddr or pattern are NULL.  Otherwise, TRUE is returned if the address
 * is matched by the pattern, or FALSE if is not matched.
 */
int pr_netaddr_fnmatch(const pr_netaddr_t *, const char *, int);
#define PR_NETADDR_MATCH_DNS		0x001
#define PR_NETADDR_MATCH_IP		0x002

/* Returns the size of the contained address (or -1, with errno set to EINVAL,
 * if NULL is used as the argument).  If the pr_netaddr_t is of the AF_INET
 * family, the size of struct sockaddr_in is returned; if of the AF_INET6
 * family, the size of struct sockaddr_in6 is returned.
 */
size_t pr_netaddr_get_sockaddr_len(const pr_netaddr_t *);

/* Returns the size of the contained address (or -1, with errno set to EINVAL,
 * if NULL is used as the argument).  If the pr_netaddr_t is of the AF_INET
 * family, the size of struct in_addr is returned; if of the AF_INET6
 * family, the size of struct in6_addr is returned.
 */
size_t pr_netaddr_get_inaddr_len(const pr_netaddr_t *);

/* Returns the family of the given pr_netaddr_t, either AF_INET or AF_INET6.
 * A NULL pr_netaddr_t will result in -1 being returned, and errno set to
 * EINVAL.
 */
int pr_netaddr_get_family(const pr_netaddr_t *);

/* Sets the family on the given pr_netaddr_t.  Returns 0 on success, or
 * -1 on error (as when NULL is used as the argument).
 */
int pr_netaddr_set_family(pr_netaddr_t *, int);

/* Returns a void * pointing to either a struct in_addr (if the family of the
 * given pr_netaddr_t is AF_INET) or a struct in6_addr (if the family of the
 * given pr_netaddr_t is AF_INET6).  Returns NULL on error.
 */
void *pr_netaddr_get_inaddr(const pr_netaddr_t *);

/* Returns a struct sockaddr * (pointing to either a struct sockaddr_in or
 * a struct sockaddr_in6, depending on the family), or NULL if there was an
 * error.
 */
struct sockaddr *pr_netaddr_get_sockaddr(const pr_netaddr_t *);

/* Set the contained sockaddr * in the given pr_netaddr_t to be the
 * sockaddr given.  The family of the pr_netaddr_t must have been set
 * first.  Returns 0 on success, and -1 on error.
 */
int pr_netaddr_set_sockaddr(pr_netaddr_t *, struct sockaddr *);

/* Sets the address of the contained sockaddr to be the wildcard address.
 * Returns 0 on success, and -1 on error.
 */
int pr_netaddr_set_sockaddr_any(pr_netaddr_t *);

/* Returns the port of the contained struct sockaddr *. */
unsigned int pr_netaddr_get_port(const pr_netaddr_t *);

/* Sets the port on the contained struct sockaddr *.  Returns 0 on success,
 * or -1 on error (as when NULL is given as the argument). Note that the
 * given port number is assumed to be in network byte order already.
 */
int pr_netaddr_set_port(pr_netaddr_t *, unsigned int);

/* Sets the port on the contained struct sockaddr *.  Returns 0 on success,
 * or -1 on error (as when NULL is given as the argument). Note that the
 * given port number is assumed to be in host byte order.
 */
int pr_netaddr_set_port2(pr_netaddr_t *, unsigned int);

/* Enables or disable use of reverse DNS lookups.  Returns the previous
 * setting.
 */
int pr_netaddr_set_reverse_dns(int);

/* Returns the DNS name associated with the given pr_netaddr_t.  If DNS
 * lookups have been disabled, the returned string will be the IP address.
 * Returns NULL if there was an error.
 */
const char *pr_netaddr_get_dnsstr(const pr_netaddr_t *);

/* Returns the list of DNS names associated with the given pr_netaddr_t.
 * If DNS lookups have been disabled, an empty list will be returned.
 * NULL is returned if there is an error.
 */
array_header *pr_netaddr_get_dnsstr_list(pool *, const pr_netaddr_t *);

/* Returns the IP address associated with the given pr_netaddr_t.  Returns
 * NULL if there was an error.
 */
const char *pr_netaddr_get_ipstr(const pr_netaddr_t *);

/* Returns the name of the local host, as returned by gethostname(2).  The
 * returned string will be dup'd from the given pool, if any.
 */
const char *pr_netaddr_get_localaddr_str(pool *);

/* Sets the name of the local host, overriding the name that would have
 * been returned by gethostname(2).
 *
 * This function is used to avoid using DNS lookups on the gethostname(2)
 * name in order to determine the IP address to use for the default
 * 'server config' vhost.
 */
int pr_netaddr_set_localaddr_str(const char *);

uint32_t pr_netaddr_get_addrno(const pr_netaddr_t *);

/* Returns TRUE if the given pr_netaddr_t contains a loopback address,
 * FALSE otherwise.
 */
int pr_netaddr_is_loopback(const pr_netaddr_t *);

/* Returns TRUE if the given pr_netaddr_t contains an RFC1918 address,
 * FALSE otherwise.  Note that -1 will be returned if there was an error,
 * with errno set appropriately.
 */
int pr_netaddr_is_rfc1918(const pr_netaddr_t *);

/* Returns TRUE if the given string is an IPv4 address, FALSE if not, and -1
 * (with errno set appropriately) if there was an error.
 */
int pr_netaddr_is_v4(const char *);

/* Returns TRUE if the given string is an IPv6 address, FALSE if not, and -1
 * (with errno set appropriately) if there was an error.
 */
int pr_netaddr_is_v6(const char *);

/* Returns TRUE if the given pr_netaddr_t is of the AF_INET6 family and
 * contains an IPv4-mapped IPv6 address; otherwise FALSE is returned.  A
 * return value of -1 is used to indicate an error.
 */
int pr_netaddr_is_v4mappedv6(const pr_netaddr_t *);

/* Given an IPv4-mapped IPv6 netaddr, returns an IPv4 netaddr allocated from
 * the given pool.  Returns NULL if the given netaddr is not an IPv4-mapped
 * IPv6 address.
 */
pr_netaddr_t *pr_netaddr_v6tov4(pool *p, const pr_netaddr_t *addr);

/* Given an IPv4 netaddr, return an IPv4-mapped IPv6 netaddr allocated from
 * the given pool.  Returns NULL if the given netaddr is not an IPv4 address.
 */
pr_netaddr_t *pr_netaddr_v4tov6(pool *p, const pr_netaddr_t *addr);

/* Returns TRUE if IPv6 support is enabled, FALSE otherwise. */
unsigned char pr_netaddr_use_ipv6(void);

/* Disables runtime use of IPv6 functionality (assuming IPv6 is supported). */
void pr_netaddr_disable_ipv6(void);

/* Enables runtime use of IPv6 functionality (assuming IPv6 is supported). */
void pr_netaddr_enable_ipv6(void);

/* Return pointers to static memory which contains the local and remote
 * netaddr information for the session.  DO NOT MODIFY the pointed-to
 * memory!  Returns NULL if no such session information exists.
 */
const pr_netaddr_t *pr_netaddr_get_sess_local_addr(void);
const pr_netaddr_t *pr_netaddr_get_sess_remote_addr(void);
const char *pr_netaddr_get_sess_remote_name(void);
void pr_netaddr_set_sess_addrs(void);

/* Clears the cache of ALL netaddr objects. */
void pr_netaddr_clear_cache(void);

/* Clears the cached DNS names, given an IP address string. */
void pr_netaddr_clear_dnscache(const char *ip_addr);

/* Clears the cached IP addresses, given a DNS name. */
void pr_netaddr_clear_ipcache(const char *name);

/* Validates the DNS name returned. */
char *pr_netaddr_validate_dns_str(char *);

/* Internal use only. */
void init_netaddr(void);

#endif /* PR_NETADDR_H */

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