1: /*
2: * ntp_stdlib.h - Prototypes for NTP lib.
3: */
4: #ifndef NTP_STDLIB_H
5: #define NTP_STDLIB_H
6:
7: #include <sys/types.h>
8: #ifdef HAVE_SYS_SOCKET_H
9: #include <sys/socket.h>
10: #endif
11:
12: #include "l_stdlib.h"
13: #include "ntp_rfc2553.h"
14: #include "ntp_types.h"
15: #include "ntp_malloc.h"
16: #include "ntp_string.h"
17: #include "ntp_net.h"
18: #include "ntp_syslog.h"
19:
20:
21: /*
22: * Handle gcc __attribute__ if available.
23: */
24: #ifndef __attribute__
25: /* This feature is available in gcc versions 2.5 and later. */
26: # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || (defined(__STRICT_ANSI__))
27: # define __attribute__(Spec) /* empty */
28: # endif
29: /* The __-protected variants of `format' and `printf' attributes
30: are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */
31: # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
32: # define __format__ format
33: # define __printf__ printf
34: # endif
35: #endif
36:
37: extern int mprintf(const char *, ...)
38: __attribute__((__format__(__printf__, 1, 2)));
39: extern int mfprintf(FILE *, const char *, ...)
40: __attribute__((__format__(__printf__, 2, 3)));
41: extern int mvfprintf(FILE *, const char *, va_list)
42: __attribute__((__format__(__printf__, 2, 0)));
43: extern int mvsnprintf(char *, size_t, const char *, va_list)
44: __attribute__((__format__(__printf__, 3, 0)));
45: extern int msnprintf(char *, size_t, const char *, ...)
46: __attribute__((__format__(__printf__, 3, 4)));
47: extern void msyslog(int, const char *, ...)
48: __attribute__((__format__(__printf__, 2, 3)));
49:
50: /*
51: * When building without OpenSSL, use a few macros of theirs to
52: * minimize source differences in NTP.
53: */
54: #ifndef OPENSSL
55: #define NID_md5 4 /* from openssl/objects.h */
56: /* from openssl/evp.h */
57: #define EVP_MAX_MD_SIZE 64 /* longest known is SHA512 */
58: #endif
59:
60: /* authkeys.c */
61: extern void auth_delkeys (void);
62: extern int auth_havekey (keyid_t);
63: extern int authdecrypt (keyid_t, u_int32 *, int, int);
64: extern int authencrypt (keyid_t, u_int32 *, int);
65: extern int authhavekey (keyid_t);
66: extern int authistrusted (keyid_t);
67: extern int authreadkeys (const char *);
68: extern void authtrust (keyid_t, u_long);
69: extern int authusekey (keyid_t, int, const u_char *);
70:
71: extern u_long calyearstart (u_long);
72: extern const char *clockname (int);
73: extern int clocktime (int, int, int, int, int, u_long, u_long *, u_int32 *);
74: extern int ntp_getopt (int, char **, const char *);
75: extern void init_auth (void);
76: extern void init_lib (void);
77: extern struct savekey *auth_findkey (keyid_t);
78: extern int auth_moremem (void);
79: extern int ymd2yd (int, int, int);
80:
81: /* a_md5encrypt.c */
82: extern int MD5authdecrypt (int, u_char *, u_int32 *, int, int);
83: extern int MD5authencrypt (int, u_char *, u_int32 *, int);
84: extern void MD5auth_setkey (keyid_t, int, const u_char *, const int);
85: extern u_int32 addr2refid (sockaddr_u *);
86:
87: /* emalloc.c */
88: #ifndef EREALLOC_CALLSITE /* ntp_malloc.h defines */
89: extern void * ereallocz (void *, size_t, size_t, int);
90: #define erealloczsite(p, n, o, z, f, l) ereallocz(p, n, o, (z))
91: extern void * emalloc (size_t);
92: #define emalloc_zero(c) ereallocz(NULL, (c), 0, TRUE)
93: #define erealloc(p, c) ereallocz(p, (c), 0, FALSE)
94: #define erealloc_zero(p, n, o) ereallocz(p, n, (o), TRUE)
95: extern char * estrdup_impl (const char *);
96: #define estrdup(s) estrdup_impl(s)
97: #else
98: extern void * ereallocz (void *, size_t, size_t, int,
99: const char *, int);
100: #define erealloczsite ereallocz
101: #define emalloc(c) ereallocz(NULL, (c), 0, FALSE, \
102: __FILE__, __LINE__)
103: #define emalloc_zero(c) ereallocz(NULL, (c), 0, TRUE, \
104: __FILE__, __LINE__)
105: #define erealloc(p, c) ereallocz(p, (c), 0, FALSE, \
106: __FILE__, __LINE__)
107: #define erealloc_zero(p, n, o) ereallocz(p, n, (o), TRUE, \
108: __FILE__, __LINE__)
109: extern char * estrdup_impl (const char *, const char *, int);
110: #define estrdup(s) estrdup_impl((s), __FILE__, __LINE__)
111: #endif
112:
113:
114: extern int atoint (const char *, long *);
115: extern int atouint (const char *, u_long *);
116: extern int hextoint (const char *, u_long *);
117: extern char * humanlogtime (void);
118: extern char * inttoa (long);
119: extern char * mfptoa (u_long, u_long, short);
120: extern char * mfptoms (u_long, u_long, short);
121: extern const char * modetoa (int);
122: extern const char * eventstr (int);
123: extern const char * ceventstr (int);
124: extern char * statustoa (int, int);
125: extern const char * sysstatstr (int);
126: extern const char * peerstatstr (int);
127: extern const char * clockstatstr (int);
128: extern sockaddr_u * netof (sockaddr_u *);
129: extern char * numtoa (u_int32);
130: extern char * numtohost (u_int32);
131: extern char * socktoa (const sockaddr_u *);
132: extern char * socktohost (const sockaddr_u *);
133: extern int octtoint (const char *, u_long *);
134: extern u_long ranp2 (int);
135: extern char * refnumtoa (sockaddr_u *);
136: extern int tsftomsu (u_long, int);
137: extern char * uinttoa (u_long);
138:
139: extern int decodenetnum (const char *, sockaddr_u *);
140:
141: extern const char * FindConfig (const char *);
142:
143: extern void signal_no_reset (int, RETSIGTYPE (*func)(int));
144:
145: extern void getauthkeys (const char *);
146: extern void auth_agekeys (void);
147: extern void rereadkeys (void);
148:
149: /*
150: * Variable declarations for libntp.
151: */
152:
153: /*
154: * Defined by any program.
155: */
156: extern volatile int debug; /* debugging flag */
157:
158: /* authkeys.c */
159: extern u_long authkeynotfound; /* keys not found */
160: extern u_long authkeylookups; /* calls to lookup keys */
161: extern u_long authnumkeys; /* number of active keys */
162: extern u_long authkeyexpired; /* key lifetime expirations */
163: extern u_long authkeyuncached; /* cache misses */
164: extern u_long authencryptions; /* calls to encrypt */
165: extern u_long authdecryptions; /* calls to decrypt */
166:
167: extern int authnumfreekeys;
168:
169: /*
170: * The key cache. We cache the last key we looked at here.
171: */
172: extern keyid_t cache_keyid; /* key identifier */
173: extern u_char * cache_key; /* key pointer */
174: extern int cache_type; /* key type */
175: extern u_int cache_keylen; /* key length */
176:
177: /* getopt.c */
178: extern char * ntp_optarg; /* global argument pointer */
179: extern int ntp_optind; /* global argv index */
180:
181: /* lib_strbuf.c */
182: extern int ipv4_works;
183: extern int ipv6_works;
184:
185: /* machines.c */
186: typedef void (*pset_tod_using)(const char *);
187: extern pset_tod_using set_tod_using;
188:
189: /* ssl_init.c */
190: #ifdef OPENSSL
191: extern void ssl_init (void);
192: extern void ssl_check_version (void);
193: extern int ssl_init_done;
194: #define INIT_SSL() \
195: do { \
196: if (!ssl_init_done) \
197: ssl_init(); \
198: } while (0)
199: #else /* !OPENSSL follows */
200: #define INIT_SSL() do {} while (0)
201: #endif
202: extern int keytype_from_text (const char *, size_t *);
203: extern const char *keytype_name (int);
204: extern char * getpass_keytype (int);
205:
206:
207: /* lib/isc/win32/strerror.c
208: *
209: * To minimize Windows-specific changes to the rest of the NTP code,
210: * particularly reference clocks, we hijack calls to strerror() to deal
211: * with our mixture of error codes from the C runtime (open, write)
212: * and Windows (sockets, serial ports). This is an ugly hack because
213: * both use the lowest values differently, but particularly for ntpd,
214: * it's not a problem.
215: */
216: #ifdef NTP_REDEFINE_STRERROR
217: #define strerror(e) ntp_strerror(e)
218: extern char * ntp_strerror (int e);
219: #endif
220:
221: /* systime.c */
222: extern double sys_tick; /* adjtime() resolution */
223:
224: /* version.c */
225: extern const char *Version; /* version declaration */
226:
227: #endif /* NTP_STDLIB_H */
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