| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | #include <errno.h> | ||
| 2 | #include <stdarg.h> | ||
| 3 | #include <stdio.h> | ||
| 4 | #include <string.h> | ||
| 5 | #include "error.h" | ||
| 6 | #include "command/run.h" | ||
| 7 | #include "util/log.h" | ||
| 8 | #include "util/xstdio.h" | ||
| 9 | |||
| 10 | VPRINTF(3) | ||
| 11 | 172 | static void error_msgv(ErrorBuffer *eb, const char *cmd, const char *format, va_list ap) | |
| 12 | { | ||
| 13 | 172 | const size_t size = sizeof(eb->buf); | |
| 14 | 172 | const char *file = eb->config_filename; | |
| 15 | 172 | unsigned int line = eb->config_line; | |
| 16 | 172 | int pos = 0; | |
| 17 | |||
| 18 |
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172 | if (file && cmd) { |
| 19 | 3 | pos = snprintf(eb->buf, size, "%s:%u: %s: ", file, line, cmd); | |
| 20 |
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169 | } else if (file) { |
| 21 | 11 | pos = snprintf(eb->buf, size, "%s:%u: ", file, line); | |
| 22 |
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158 | } else if (cmd) { |
| 23 | 145 | pos = snprintf(eb->buf, size, "%s: ", cmd); | |
| 24 | } | ||
| 25 | |||
| 26 |
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159 | if (unlikely(pos < 0)) { |
| 27 | // Note: POSIX snprintf(3) *does* set errno on failure (unlike ISO C) | ||
| 28 | ✗ | LOG_ERRNO("snprintf"); | |
| 29 | ✗ | pos = 0; | |
| 30 | } | ||
| 31 | |||
| 32 |
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172 | if (likely(pos < (size - 3))) { |
| 33 | 172 | vsnprintf(eb->buf + pos, size - pos, format, ap); | |
| 34 | } else { | ||
| 35 | ✗ | LOG_WARNING("no buffer space left for error message"); | |
| 36 | } | ||
| 37 | |||
| 38 |
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172 | if (eb->print_to_stderr) { |
| 39 | 5 | xfputs(eb->buf, stderr); | |
| 40 | 5 | xfputc('\n', stderr); | |
| 41 | 5 | eb->stderr_errors_printed = true; | |
| 42 | } | ||
| 43 | |||
| 44 | 172 | eb->is_error = true; | |
| 45 | 172 | eb->nr_errors++; | |
| 46 | 172 | LOG_INFO("%s", eb->buf); | |
| 47 | 172 | } | |
| 48 | |||
| 49 | 151 | bool error_msg(ErrorBuffer *eb, const char *format, ...) | |
| 50 | { | ||
| 51 | 151 | va_list ap; | |
| 52 | 151 | va_start(ap, format); | |
| 53 | 151 | error_msgv(eb, eb->command_name, format, ap); | |
| 54 | 151 | va_end(ap); | |
| 55 | 151 | return false; // To allow tail-calling from command handlers | |
| 56 | } | ||
| 57 | |||
| 58 | 21 | bool error_msg_for_cmd(ErrorBuffer *eb, const char *cmd, const char *format, ...) | |
| 59 | { | ||
| 60 | 21 | va_list ap; | |
| 61 | 21 | va_start(ap, format); | |
| 62 | 21 | error_msgv(eb, cmd, format, ap); | |
| 63 | 21 | va_end(ap); | |
| 64 | 21 | return false; | |
| 65 | } | ||
| 66 | |||
| 67 | 1 | bool error_msg_errno(ErrorBuffer *eb, const char *prefix) | |
| 68 | { | ||
| 69 | 1 | return error_msg(eb, "%s: %s", prefix, strerror(errno)); | |
| 70 | } | ||
| 71 | |||
| 72 | 14 | bool info_msg(ErrorBuffer *eb, const char *format, ...) | |
| 73 | { | ||
| 74 | 14 | va_list ap; | |
| 75 | 14 | va_start(ap, format); | |
| 76 | 14 | vsnprintf(eb->buf, sizeof(eb->buf), format, ap); | |
| 77 | 14 | va_end(ap); | |
| 78 | 14 | eb->is_error = false; | |
| 79 | 14 | return true; // To allow tail-calling from command handlers | |
| 80 | } | ||
| 81 | |||
| 82 | 155 | void clear_error(ErrorBuffer *eb) | |
| 83 | { | ||
| 84 | 155 | eb->buf[0] = '\0'; | |
| 85 | 155 | } | |
| 86 |