6 * Yet Another syslog(3) API clone.
7 * Used to unify rpmError() and rpmMessage() interfaces in rpm.
13 #include <rpm/rpmutil.h>
21 * priorities/facilities are encoded into a single 32-bit quantity, where the
22 * bottom 3 bits are the priority (0-7) and the top 28 bits are the facility
23 * (0-big number). Both the priorities and the facilities map roughly
24 * one-to-one to strings in the syslogd(8) source code. This mapping is
25 * included in this file.
27 * priorities (these are ordered)
29 typedef enum rpmlogLvl_e {
30 RPMLOG_EMERG = 0, /*!< system is unusable */
31 RPMLOG_ALERT = 1, /*!< action must be taken immediately */
32 RPMLOG_CRIT = 2, /*!< critical conditions */
33 RPMLOG_ERR = 3, /*!< error conditions */
34 RPMLOG_WARNING = 4, /*!< warning conditions */
35 RPMLOG_NOTICE = 5, /*!< normal but significant condition */
36 RPMLOG_INFO = 6, /*!< informational */
37 RPMLOG_DEBUG = 7 /*!< debug-level messages */
40 #define RPMLOG_PRIMASK 0x07 /* mask to extract priority part (internal) */
41 /* extract priority */
42 #define RPMLOG_PRI(p) ((p) & RPMLOG_PRIMASK)
43 #define RPMLOG_MAKEPRI(fac, pri) ((((unsigned)(fac)) << 3) | (pri))
48 typedef enum rpmlogFac_e {
49 RPMLOG_KERN = (0<<3), /*!< kernel messages */
50 RPMLOG_USER = (1<<3), /*!< random user-level messages */
51 RPMLOG_MAIL = (2<<3), /*!< mail system */
52 RPMLOG_DAEMON = (3<<3), /*!< system daemons */
53 RPMLOG_AUTH = (4<<3), /*!< security/authorization messages */
54 RPMLOG_SYSLOG = (5<<3), /*!< messages generated internally by syslogd */
55 RPMLOG_LPR = (6<<3), /*!< line printer subsystem */
56 RPMLOG_NEWS = (7<<3), /*!< network news subsystem */
57 RPMLOG_UUCP = (8<<3), /*!< UUCP subsystem */
58 RPMLOG_CRON = (9<<3), /*!< clock daemon */
59 RPMLOG_AUTHPRIV = (10<<3), /*!< security/authorization messages (private) */
60 RPMLOG_FTP = (11<<3), /*!< ftp daemon */
62 /* other codes through 15 reserved for system use */
63 RPMLOG_LOCAL0 = (16<<3), /*!< reserved for local use */
64 RPMLOG_LOCAL1 = (17<<3), /*!< reserved for local use */
65 RPMLOG_LOCAL2 = (18<<3), /*!< reserved for local use */
66 RPMLOG_LOCAL3 = (19<<3), /*!< reserved for local use */
67 RPMLOG_LOCAL4 = (20<<3), /*!< reserved for local use */
68 RPMLOG_LOCAL5 = (21<<3), /*!< reserved for local use */
69 RPMLOG_LOCAL6 = (22<<3), /*!< reserved for local use */
70 RPMLOG_LOCAL7 = (23<<3), /*!< reserved for local use */
72 #define RPMLOG_NFACILITIES 24 /*!< current number of facilities */
73 RPMLOG_ERRMSG = (((unsigned)(RPMLOG_NFACILITIES+0))<<3)
76 #define RPMLOG_FACMASK 0x03f8 /*!< mask to extract facility part */
77 #define RPMLOG_FAC(p) (((p) & RPMLOG_FACMASK) >> 3)
81 * arguments to setlogmask.
83 #define RPMLOG_MASK(pri) (1 << ((unsigned)(pri))) /*!< mask for one priority */
84 #define RPMLOG_UPTO(pri) ((1 << (((unsigned)(pri))+1)) - 1) /*!< all priorities through pri */
87 * Option flags for openlog.
89 * RPMLOG_ODELAY no longer does anything.
90 * RPMLOG_NDELAY is the inverse of what it used to be.
92 #define RPMLOG_PID 0x01 /*!< log the pid with each message */
93 #define RPMLOG_CONS 0x02 /*!< log on the console if errors in sending */
94 #define RPMLOG_ODELAY 0x04 /*!< delay open until first syslog() (default) */
95 #define RPMLOG_NDELAY 0x08 /*!< don't delay open */
96 #define RPMLOG_NOWAIT 0x10 /*!< don't wait for console forks: DEPRECATED */
97 #define RPMLOG_PERROR 0x20 /*!< log to stderr as well */
100 * Option flags for callback return value.
102 #define RPMLOG_DEFAULT 0x01 /*!< perform default logging */
103 #define RPMLOG_EXIT 0x02 /*!< exit after logging */
107 typedef struct rpmlogRec_s * rpmlogRec;
110 * Retrieve log message string from rpmlog record
111 * @param rec rpmlog record
112 * @return log message
114 const char * rpmlogRecMessage(rpmlogRec rec);
117 * Retrieve log priority from rpmlog record
118 * @param rec rpmlog record
119 * @return log priority
121 rpmlogLvl rpmlogRecPriority(rpmlogRec rec);
123 typedef void * rpmlogCallbackData;
126 * @param rec rpmlog record
127 * @param data private callback data
128 * @return flags to define further behavior:
129 * RPMLOG_DEFAULT to perform default logging,
130 * RPMLOG_EXIT to exit after processing,
131 * 0 to return after callback
133 typedef int (*rpmlogCallback) (rpmlogRec rec, rpmlogCallbackData data);
136 * Return number of rpmError() ressages.
137 * @return number of messages
139 int rpmlogGetNrecs(void) ;
142 * Print all rpmError() messages.
143 * @param f file handle (NULL uses stderr)
145 void rpmlogPrint(FILE *f);
148 * Close desriptor used to write to system logger.
151 void rpmlogClose (void);
154 * Open connection to system logger.
157 void rpmlogOpen (const char * ident, int option, int facility);
160 * Set the log mask level.
161 * @param mask log mask (0 is no operation)
162 * @return previous log mask
164 int rpmlogSetMask (int mask);
167 * Generate a log message using FMT string and option arguments.
169 void rpmlog (int code, const char *fmt, ...) RPM_GNUC_PRINTF(2, 3);
172 * Return text of last rpmError() message.
173 * @return text of last message
175 const char * rpmlogMessage(void);
178 * Return error code from last rpmError() message.
179 * @deprecated Perl-RPM needs, what's really needed is predictable, non-i18n
180 * encumbered, error text that can be retrieved through rpmlogMessage()
182 * @return code from last message
184 int rpmlogCode(void);
187 * Return translated prefix string (if any) given log level.
188 * @param pri log priority
189 * @return message prefix (or "" for none)
191 const char * rpmlogLevelPrefix(rpmlogLvl pri);
194 * Set rpmlog callback function.
195 * @param cb rpmlog callback function
196 * @param data callback private (user) data
197 * @return previous rpmlog callback function
199 rpmlogCallback rpmlogSetCallback(rpmlogCallback cb, rpmlogCallbackData data);
202 * Set rpmlog file handle.
203 * @param fp rpmlog file handle (NULL uses stdout/stderr)
204 * @return previous rpmlog file handle
206 FILE * rpmlogSetFile(FILE * fp);
208 #define rpmSetVerbosity(_lvl) \
209 ((void)rpmlogSetMask( RPMLOG_UPTO( RPMLOG_PRI(_lvl))))
210 #define rpmIncreaseVerbosity() \
211 ((void)rpmlogSetMask(((((unsigned)(rpmlogSetMask(0) & 0xff)) << 1) | 1)))
212 #define rpmDecreaseVerbosity() \
213 ((void)rpmlogSetMask((((int)(rpmlogSetMask(0) & 0xff)) >> 1)))
214 #define rpmIsNormal() \
215 (rpmlogSetMask(0) >= RPMLOG_MASK( RPMLOG_NOTICE ))
216 #define rpmIsVerbose() \
217 (rpmlogSetMask(0) >= RPMLOG_MASK( RPMLOG_INFO ))
218 #define rpmIsDebug() \
219 (rpmlogSetMask(0) >= RPMLOG_MASK( RPMLOG_DEBUG ))
225 #endif /* H_RPMLOG */