7 reference: Stevens, Unix network programming (2ed), p.922 |
7 reference: Stevens, Unix network programming (2ed), p.922 |
8 |
8 |
9 */ |
9 */ |
10 |
10 |
11 #include "errlib.h" |
11 #include "errlib.h" |
12 #include <stdarg.h> |
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13 |
12 |
14 #define MAXLINE 4095 |
13 #define MAXLINE 4095 |
15 |
14 |
16 #ifdef __CPLUSPLUS |
15 int daemon_proc = 0; /* set to 0 if stdout/stderr available, else set to 1 */ |
17 extern "C" { |
16 |
18 #endif |
17 static void err_doit (int errnoflag, int level, const char *fmt, va_list ap) |
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18 { |
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19 int errno_save = errno, n; |
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20 char buf[MAXLINE+1]; |
19 |
21 |
20 int daemon_proc = 0; /* set to 0 if stdout/stderr available, else set to 1 */ |
22 vsnprintf (buf, MAXLINE, fmt, ap); |
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23 n = strlen(buf); |
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24 if (errnoflag) |
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25 snprintf (buf+n, MAXLINE-n, ": %s", strerror(errno_save)); |
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26 strcat (buf, "\n"); |
21 |
27 |
22 static void err_doit (int errnoflag, int level, const char *fmt, va_list ap) |
28 if (daemon_proc) |
23 { |
29 syslog (level, buf); |
24 int errno_save = errno, n; |
30 else { |
25 char buf[MAXLINE+1]; |
31 fflush (stdout); |
26 |
32 fprintf (stderr, buf); |
27 vsnprintf (buf, MAXLINE, fmt, ap); |
33 fflush (stderr); |
28 n = strlen(buf); |
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29 if (errnoflag) |
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30 snprintf (buf+n, MAXLINE-n, ": %s", strerror(errno_save)); |
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31 strcat (buf, "\n"); |
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32 |
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33 if (daemon_proc) |
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34 syslog (level, buf); |
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35 else { |
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36 fflush (stdout); |
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37 fprintf (stderr, buf); |
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38 fflush (stderr); |
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39 } |
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40 |
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41 return; |
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42 } |
34 } |
43 |
35 |
44 void err_ret (const char *fmt, ...) |
36 return; |
45 { |
37 } |
46 va_list ap; |
38 |
47 |
39 void err_ret (const char *fmt, ...) |
48 va_start (ap, fmt); |
40 { |
49 err_doit (1, LOG_INFO, fmt, ap); |
41 va_list ap; |
50 va_end (ap); |
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51 return; |
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52 } |
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53 |
42 |
54 void err_sys (const char *fmt, ...) |
43 va_start (ap, fmt); |
55 { |
44 err_doit (1, LOG_INFO, fmt, ap); |
56 va_list ap; |
45 va_end (ap); |
57 |
46 return; |
58 va_start (ap, fmt); |
47 } |
59 err_doit (1, LOG_ERR, fmt, ap); |
48 |
60 va_end (ap); |
49 void err_sys (const char *fmt, ...) |
61 exit (1); |
50 { |
62 } |
51 va_list ap; |
63 |
52 |
64 void err_msg (const char *fmt, ...) |
53 va_start (ap, fmt); |
65 { |
54 err_doit (1, LOG_ERR, fmt, ap); |
66 va_list ap; |
55 va_end (ap); |
67 |
56 exit (1); |
68 va_start (ap, fmt); |
57 } |
69 err_doit (0, LOG_INFO, fmt, ap); |
58 |
70 va_end (ap); |
59 void err_msg (const char *fmt, ...) |
71 return; |
60 { |
72 } |
61 va_list ap; |
73 |
62 |
74 void err_quit (const char *fmt, ...) |
63 va_start (ap, fmt); |
75 { |
64 err_doit (0, LOG_INFO, fmt, ap); |
76 va_list ap; |
65 va_end (ap); |
77 |
66 return; |
78 va_start (ap, fmt); |
67 } |
79 err_doit (0, LOG_ERR, fmt, ap); |
68 |
80 va_end (ap); |
69 void err_quit (const char *fmt, ...) |
81 exit (1); |
70 { |
82 } |
71 va_list ap; |
83 |
72 |
84 void err_dump (const char *fmt, ...) |
73 va_start (ap, fmt); |
85 { |
74 err_doit (0, LOG_ERR, fmt, ap); |
86 va_list ap; |
75 va_end (ap); |
87 |
76 exit (1); |
88 va_start (ap, fmt); |
77 } |
89 err_doit (1, LOG_ERR, fmt, ap); |
78 |
90 va_end (ap); |
79 void err_dump (const char *fmt, ...) |
91 abort(); |
80 { |
92 } |
81 va_list ap; |
93 |
82 |
94 #ifdef __CPLUSPLUS |
83 va_start (ap, fmt); |
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84 err_doit (1, LOG_ERR, fmt, ap); |
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85 va_end (ap); |
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86 abort(); |
95 } |
87 } |
96 #endif |
88 |