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