Line | Branch | Exec | Source |
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1 | #include <errno.h> | ||
2 | #include <stdarg.h> | ||
3 | #include <stdio.h> | ||
4 | #include <string.h> | ||
5 | #include "error.h" | ||
6 | #include "util/log.h" | ||
7 | #include "util/xstdio.h" | ||
8 | |||
9 | VPRINTF(3) | ||
10 | 172 | static void error_msgv(ErrorBuffer *eb, const char *cmd, const char *format, va_list ap) | |
11 | { | ||
12 | 172 | const size_t size = sizeof(eb->buf); | |
13 | 172 | const char *file = eb->config_filename; | |
14 | 172 | unsigned int line = eb->config_line; | |
15 | 172 | int pos = 0; | |
16 | |||
17 |
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172 | if (file && cmd) { |
18 | 3 | pos = snprintf(eb->buf, size, "%s:%u: %s: ", file, line, cmd); | |
19 |
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169 | } else if (file) { |
20 | 11 | pos = snprintf(eb->buf, size, "%s:%u: ", file, line); | |
21 |
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158 | } else if (cmd) { |
22 | 145 | pos = snprintf(eb->buf, size, "%s: ", cmd); | |
23 | } | ||
24 | |||
25 |
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159 | LOG_ERRNO_ON(pos < 0, "snprintf"); |
26 | 172 | pos = MAX(0, pos); | |
27 | |||
28 |
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172 | if (likely(pos < (size - 3))) { |
29 | 172 | vsnprintf(eb->buf + pos, size - pos, format, ap); | |
30 | } else { | ||
31 | ✗ | LOG_WARNING("no buffer space left for error message"); | |
32 | } | ||
33 | |||
34 |
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172 | if (eb->print_to_stderr) { |
35 | 5 | xfputs(eb->buf, stderr); | |
36 | 5 | xfputc('\n', stderr); | |
37 | 5 | eb->stderr_errors_printed = true; | |
38 | } | ||
39 | |||
40 | 172 | eb->is_error = true; | |
41 | 172 | eb->nr_errors++; | |
42 | 172 | LOG_INFO("%s", eb->buf); | |
43 | 172 | } | |
44 | |||
45 | 151 | bool error_msg(ErrorBuffer *eb, const char *format, ...) | |
46 | { | ||
47 | 151 | va_list ap; | |
48 | 151 | va_start(ap, format); | |
49 | 151 | error_msgv(eb, eb->command_name, format, ap); | |
50 | 151 | va_end(ap); | |
51 | 151 | return false; // To allow tail-calling from command handlers | |
52 | } | ||
53 | |||
54 | 21 | bool error_msg_for_cmd(ErrorBuffer *eb, const char *cmd, const char *format, ...) | |
55 | { | ||
56 | 21 | va_list ap; | |
57 | 21 | va_start(ap, format); | |
58 | 21 | error_msgv(eb, cmd, format, ap); | |
59 | 21 | va_end(ap); | |
60 | 21 | return false; | |
61 | } | ||
62 | |||
63 | 1 | bool error_msg_errno(ErrorBuffer *eb, const char *prefix) | |
64 | { | ||
65 | 1 | return error_msg(eb, "%s: %s", prefix, strerror(errno)); | |
66 | } | ||
67 | |||
68 | 14 | bool info_msg(ErrorBuffer *eb, const char *format, ...) | |
69 | { | ||
70 | 14 | va_list ap; | |
71 | 14 | va_start(ap, format); | |
72 | 14 | vsnprintf(eb->buf, sizeof(eb->buf), format, ap); | |
73 | 14 | va_end(ap); | |
74 | 14 | eb->is_error = false; | |
75 | 14 | return true; // To allow tail-calling from command handlers | |
76 | } | ||
77 | |||
78 | 155 | void clear_error(ErrorBuffer *eb) | |
79 | { | ||
80 | 155 | eb->buf[0] = '\0'; | |
81 | 155 | } | |
82 |