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Commit | Line | Data |
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1 | /* error.c */ | |
2 | ||
3 | #include <stdarg.h> | |
4 | #include <time.h> | |
5 | #include <stdio.h> | |
6 | #include <stdlib.h> | |
7 | #include "error.h" | |
8 | #include "hooks.h" | |
9 | ||
10 | FILE *logfile; | |
11 | ||
12 | static corehandler *coreh, *coret; | |
13 | ||
14 | char *sevtostring(int severity) { | |
15 | switch(severity) { | |
16 | case ERR_DEBUG: | |
17 | return "debug"; | |
18 | ||
19 | case ERR_INFO: | |
20 | return "info"; | |
21 | ||
22 | case ERR_WARNING: | |
23 | return "warning"; | |
24 | ||
25 | case ERR_ERROR: | |
26 | return "error"; | |
27 | ||
28 | case ERR_FATAL: | |
29 | return "fatal error"; | |
30 | ||
31 | case ERR_STOP: | |
32 | return "terminal error"; | |
33 | ||
34 | default: | |
35 | return "unknown error"; | |
36 | } | |
37 | } | |
38 | ||
39 | void reopen_logfile(int hooknum, void *arg) { | |
40 | if (logfile) | |
41 | fclose(logfile); | |
42 | ||
43 | logfile=fopen("logs/newserv.log","a"); | |
44 | } | |
45 | ||
46 | void init_logfile() { | |
47 | logfile=fopen("logs/newserv.log","a"); | |
48 | if (!logfile) { | |
49 | fprintf(stderr,"Failed to open logfile...\n"); | |
50 | } | |
51 | registerhook(HOOK_CORE_SIGUSR1, reopen_logfile); | |
52 | } | |
53 | ||
54 | void fini_logfile() { | |
55 | deregisterhook(HOOK_CORE_SIGUSR1, reopen_logfile); | |
56 | if (logfile) | |
57 | fclose(logfile); | |
58 | } | |
59 | ||
60 | void Error(char *source, int severity, char *reason, ... ) { | |
61 | char buf[512]; | |
62 | va_list va; | |
63 | struct tm *tm; | |
64 | time_t now; | |
65 | char timebuf[100]; | |
66 | struct error_event evt; | |
67 | ||
68 | va_start(va,reason); | |
69 | vsnprintf(buf,512,reason,va); | |
70 | va_end(va); | |
71 | ||
72 | evt.severity=severity; | |
73 | evt.message=buf; | |
74 | evt.source=source; | |
75 | triggerhook(HOOK_CORE_ERROR, &evt); | |
76 | ||
77 | if (severity>ERR_DEBUG) { | |
78 | now=time(NULL); | |
79 | tm=gmtime(&now); | |
80 | strftime(timebuf,100,"%Y-%m-%d %H:%M:%S",tm); | |
81 | fprintf(stderr,"[%s] %s(%s): %s\n",timebuf,sevtostring(severity),source,buf); | |
82 | fflush(stderr); | |
83 | ||
84 | if (logfile) { | |
85 | fprintf(logfile,"[%s] %s(%s): %s\n",timebuf,sevtostring(severity),source,buf); | |
86 | fflush(logfile); | |
87 | } | |
88 | } | |
89 | ||
90 | if (severity>=ERR_STOP) { | |
91 | fprintf(stderr,"Terminal error occured, exiting...\n"); | |
92 | triggerhook(HOOK_CORE_STOPERROR, NULL); | |
93 | exit(0); | |
94 | } | |
95 | } | |
96 | ||
97 | void handlecore(void) { | |
98 | corehandler *n; | |
99 | ||
100 | /* no attempt is made to clean these up */ | |
101 | for(n=coreh;coreh;n=coreh->next) | |
102 | (n->fn)(n->arg); | |
103 | } | |
104 | ||
105 | corehandler *registercorehandler(CoreHandlerFn fn, void *arg) { | |
106 | corehandler *c = (corehandler *)malloc(sizeof(corehandler)); | |
107 | /* core if we can't allocate!! */ | |
108 | ||
109 | c->fn = fn; | |
110 | c->arg = arg; | |
111 | c->next = NULL; | |
112 | c->prev = coret; | |
113 | coret = c->prev; | |
114 | ||
115 | if(!coreh) | |
116 | coreh = c; | |
117 | ||
118 | return c; | |
119 | } | |
120 | ||
121 | void deregistercorehandler(corehandler *c) { | |
122 | if(!c->prev) { | |
123 | coreh = c->next; | |
124 | } else { | |
125 | c->prev->next = c->next; | |
126 | } | |
127 | ||
128 | if(!c->next) { | |
129 | coret = c->prev; | |
130 | } else { | |
131 | c->next->prev = c->prev; | |
132 | } | |
133 | ||
134 | free(c); | |
135 | } | |
136 |