287 lines
9.7 KiB
C
287 lines
9.7 KiB
C
/*
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* ntp_stdlib.h - Prototypes for NTP lib.
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*/
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#ifndef NTP_STDLIB_H
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#define NTP_STDLIB_H
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#include <sys/types.h>
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#ifdef HAVE_SYS_SOCKET_H
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#include <sys/socket.h>
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#endif
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#include "declcond.h" /* ntpd uses ntpd/declcond.h, others include/ */
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#include "l_stdlib.h"
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#include "ntp_net.h"
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#include "ntp_debug.h"
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#include "ntp_malloc.h"
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#include "ntp_string.h"
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#include "ntp_syslog.h"
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#include "ntp_keyacc.h"
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#ifdef __GNUC__
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#define NTP_PRINTF(fmt, args) __attribute__((__format__(__printf__, fmt, args)))
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#else
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#define NTP_PRINTF(fmt, args)
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#endif
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extern int mprintf(const char *, ...) NTP_PRINTF(1, 2);
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extern int mfprintf(FILE *, const char *, ...) NTP_PRINTF(2, 3);
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extern int mvfprintf(FILE *, const char *, va_list) NTP_PRINTF(2, 0);
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extern int mvsnprintf(char *, size_t, const char *, va_list)
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NTP_PRINTF(3, 0);
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extern int msnprintf(char *, size_t, const char *, ...)
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NTP_PRINTF(3, 4);
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extern void msyslog(int, const char *, ...) NTP_PRINTF(2, 3);
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extern void mvsyslog(int, const char *, va_list) NTP_PRINTF(2, 0);
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extern void init_logging (const char *, u_int32, int);
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extern int change_logfile (const char *, int);
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extern void setup_logfile (const char *);
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#ifndef errno_to_str
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extern void errno_to_str(int, char *, size_t);
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#endif
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/*
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* When building without OpenSSL, use a few macros of theirs to
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* minimize source differences in NTP.
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*/
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#ifndef OPENSSL
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#define NID_md5 4 /* from openssl/objects.h */
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/* from openssl/evp.h */
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#define EVP_MAX_MD_SIZE 64 /* longest known is SHA512 */
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#endif
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#define SAVE_ERRNO(stmt) \
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{ \
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int preserved_errno; \
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\
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preserved_errno = socket_errno(); \
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{ \
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stmt \
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} \
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errno = preserved_errno; \
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}
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typedef void (*ctrl_c_fn)(void);
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/* authkeys.c */
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extern void auth_delkeys (void);
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extern int auth_havekey (keyid_t);
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extern int authdecrypt (keyid_t, u_int32 *, size_t, size_t);
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extern size_t authencrypt (keyid_t, u_int32 *, size_t);
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extern int authhavekey (keyid_t);
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extern int authistrusted (keyid_t);
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extern int authistrustedip (keyid_t, sockaddr_u *);
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extern int authreadkeys (const char *);
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extern void authtrust (keyid_t, u_long);
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extern int authusekey (keyid_t, int, const u_char *);
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/*
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* Based on the NTP timestamp, calculate the NTP timestamp of
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* the corresponding calendar unit. Use the pivot time to unfold
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* the NTP timestamp properly, or the current system time if the
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* pivot pointer is NULL.
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*/
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extern u_int32 calyearstart (u_int32 ntptime, const time_t *pivot);
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extern u_int32 calmonthstart (u_int32 ntptime, const time_t *pivot);
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extern u_int32 calweekstart (u_int32 ntptime, const time_t *pivot);
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extern u_int32 caldaystart (u_int32 ntptime, const time_t *pivot);
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extern const char *clockname (int);
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extern int clocktime (int, int, int, int, int, u_int32, u_long *, u_int32 *);
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extern int ntp_getopt (int, char **, const char *);
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extern void init_auth (void);
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extern void init_lib (void);
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extern struct savekey *auth_findkey (keyid_t);
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extern void auth_moremem (int);
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extern void auth_prealloc_symkeys(int);
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extern int ymd2yd (int, int, int);
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/* a_md5encrypt.c */
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extern int MD5authdecrypt (int, const u_char *, size_t, u_int32 *, size_t, size_t);
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extern size_t MD5authencrypt (int, const u_char *, size_t, u_int32 *, size_t);
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extern void MD5auth_setkey (keyid_t, int, const u_char *, size_t, KeyAccT *c);
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extern u_int32 addr2refid (sockaddr_u *);
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/* emalloc.c */
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#ifndef EREALLOC_CALLSITE /* ntp_malloc.h defines */
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extern void * ereallocz (void *, size_t, size_t, int);
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extern void * oreallocarrayxz (void *optr, size_t nmemb, size_t size, size_t extra);
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#define erealloczsite(p, n, o, z, f, l) ereallocz((p), (n), (o), (z))
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#define emalloc(n) ereallocz(NULL, (n), 0, FALSE)
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#define emalloc_zero(c) ereallocz(NULL, (c), 0, TRUE)
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#define erealloc(p, c) ereallocz((p), (c), 0, FALSE)
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#define erealloc_zero(p, n, o) ereallocz((p), (n), (o), TRUE)
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#define ereallocarray(p, n, s) oreallocarrayxz((p), (n), (s), 0)
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#define eallocarray(n, s) oreallocarrayxz(NULL, (n), (s), 0)
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#define ereallocarrayxz(p, n, s, x) oreallocarrayxz((p), (n), (s), (x))
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#define eallocarrayxz(n, s, x) oreallocarrayxz(NULL, (n), (s), (x))
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extern char * estrdup_impl(const char *);
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#define estrdup(s) estrdup_impl(s)
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#else
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extern void * ereallocz (void *, size_t, size_t, int,
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const char *, int);
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extern void * oreallocarrayxz (void *optr, size_t nmemb, size_t size,
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size_t extra, const char *, int);
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#define erealloczsite ereallocz
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#define emalloc(c) ereallocz(NULL, (c), 0, FALSE, \
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__FILE__, __LINE__)
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#define emalloc_zero(c) ereallocz(NULL, (c), 0, TRUE, \
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__FILE__, __LINE__)
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#define erealloc(p, c) ereallocz((p), (c), 0, FALSE, \
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__FILE__, __LINE__)
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#define erealloc_zero(p, n, o) ereallocz((p), (n), (o), TRUE, \
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__FILE__, __LINE__)
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#define ereallocarray(p, n, s) oreallocarrayxz((p), (n), (s), 0, \
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__FILE__, __LINE__)
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#define eallocarray(n, s) oreallocarrayxz(NULL, (n), (s), 0, \
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__FILE__, __LINE__)
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#define ereallocarrayxz(p, n, s, x) oreallocarrayxz((p), (n), (s), (x), \
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__FILE__, __LINE__)
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#define eallocarrayxz(n, s, x) oreallocarrayxz(NULL, (n), (s), (x), \
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__FILE__, __LINE__)
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extern char * estrdup_impl(const char *, const char *, int);
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#define estrdup(s) estrdup_impl((s), __FILE__, __LINE__)
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#endif
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extern int atoint (const char *, long *);
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extern int atouint (const char *, u_long *);
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extern int hextoint (const char *, u_long *);
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extern const char * humanlogtime (void);
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extern const char * humantime (time_t);
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extern int is_ip_address (const char *, u_short, sockaddr_u *);
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extern char * mfptoa (u_int32, u_int32, short);
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extern char * mfptoms (u_int32, u_int32, short);
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extern const char * modetoa (size_t);
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extern const char * eventstr (int);
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extern const char * ceventstr (int);
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extern const char * res_match_flags(u_short);
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extern const char * res_access_flags(u_short);
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#ifdef KERNEL_PLL
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extern const char * k_st_flags (u_int32);
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#endif
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extern char * statustoa (int, int);
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extern sockaddr_u * netof (sockaddr_u *);
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extern char * numtoa (u_int32);
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extern char * numtohost (u_int32);
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extern const char * socktoa (const sockaddr_u *);
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extern const char * sockporttoa(const sockaddr_u *);
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extern u_short sock_hash (const sockaddr_u *);
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extern int sockaddr_masktoprefixlen(const sockaddr_u *);
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extern const char * socktohost (const sockaddr_u *);
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extern int octtoint (const char *, u_long *);
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extern u_long ranp2 (int);
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extern const char *refnumtoa (sockaddr_u *);
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extern const char *refid_str (u_int32, int);
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extern int decodenetnum (const char *, sockaddr_u *);
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extern const char * FindConfig (const char *);
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extern void signal_no_reset (int, RETSIGTYPE (*func)(int));
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extern void set_ctrl_c_hook (ctrl_c_fn);
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extern void getauthkeys (const char *);
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extern void auth_agekeys (void);
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extern void rereadkeys (void);
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/*
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* Variable declarations for libntp.
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*/
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/* authkeys.c */
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extern u_long authkeynotfound; /* keys not found */
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extern u_long authkeylookups; /* calls to lookup keys */
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extern u_long authnumkeys; /* number of active keys */
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extern u_long authkeyexpired; /* key lifetime expirations */
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extern u_long authkeyuncached; /* cache misses */
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extern u_long authencryptions; /* calls to encrypt */
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extern u_long authdecryptions; /* calls to decrypt */
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extern int authnumfreekeys;
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/*
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* The key cache. We cache the last key we looked at here.
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*/
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extern keyid_t cache_keyid; /* key identifier */
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extern int cache_type; /* key type */
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extern u_char * cache_secret; /* secret */
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extern size_t cache_secretsize; /* secret octets */
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extern u_short cache_flags; /* KEY_ bit flags */
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/* getopt.c */
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extern char * ntp_optarg; /* global argument pointer */
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extern int ntp_optind; /* global argv index */
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/* lib_strbuf.c */
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extern int ipv4_works;
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extern int ipv6_works;
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/* machines.c */
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typedef void (*pset_tod_using)(const char *);
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extern pset_tod_using set_tod_using;
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/* ssl_init.c */
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#ifdef OPENSSL
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extern void ssl_init (void);
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extern void ssl_check_version (void);
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extern int ssl_init_done;
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#define INIT_SSL() \
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do { \
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if (!ssl_init_done) \
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ssl_init(); \
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} while (0)
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#else /* !OPENSSL follows */
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#define INIT_SSL() do {} while (0)
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#endif
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extern int keytype_from_text (const char *, size_t *);
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extern const char *keytype_name (int);
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extern char * getpass_keytype (int);
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/* strl-obsd.c */
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#ifndef HAVE_STRLCPY /* + */
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/*
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* Copy src to string dst of size siz. At most siz-1 characters
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* will be copied. Always NUL terminates (unless siz == 0).
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* Returns strlen(src); if retval >= siz, truncation occurred.
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*/
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extern size_t strlcpy(char *dst, const char *src, size_t siz);
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#endif
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#ifndef HAVE_STRLCAT /* + */
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/*
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* Appends src to string dst of size siz (unlike strncat, siz is the
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* full size of dst, not space left). At most siz-1 characters
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* will be copied. Always NUL terminates (unless siz <= strlen(dst)).
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* Returns strlen(src) + MIN(siz, strlen(initial dst)).
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* If retval >= siz, truncation occurred.
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*/
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extern size_t strlcat(char *dst, const char *src, size_t siz);
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#endif
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/* lib/isc/win32/strerror.c
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*
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* To minimize Windows-specific changes to the rest of the NTP code,
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* particularly reference clocks, we hijack calls to strerror() to deal
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* with our mixture of error codes from the C runtime (open, write)
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* and Windows (sockets, serial ports). This is an ugly hack because
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* both use the lowest values differently, but particularly for ntpd,
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* it's not a problem.
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*/
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#ifdef NTP_REDEFINE_STRERROR
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#define strerror(e) ntp_strerror(e)
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extern char * ntp_strerror (int e);
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#endif
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/* systime.c */
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extern double sys_tick; /* tick size or time to read */
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extern double measured_tick; /* non-overridable sys_tick */
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extern double sys_fuzz; /* min clock read latency */
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extern int trunc_os_clock; /* sys_tick > measured_tick */
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/* version.c */
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extern const char *Version; /* version declaration */
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#endif /* NTP_STDLIB_H */
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