1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
/*
* Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Development of this code funded by Astaro AG (http://www.astaro.com/)
*/
#include <config.h>
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <netlink.h>
#include <gmputil.h>
#include <erec.h>
static const struct input_descriptor internal_indesc = {
.type = INDESC_INTERNAL,
.name = "internal",
};
const struct location internal_location = {
.indesc = &internal_indesc,
};
static const char *error_record_names[] = {
[EREC_INFORMATIONAL] = NULL,
[EREC_WARNING] = "Warning",
[EREC_ERROR] = "Error"
};
void erec_add_location(struct error_record *erec, const struct location *loc)
{
assert(erec->num_locations < EREC_LOCATIONS_MAX);
erec->locations[erec->num_locations++] = *loc;
}
static void erec_destroy(struct error_record *erec)
{
xfree(erec->msg);
xfree(erec);
}
struct error_record *erec_vcreate(enum error_record_types type,
const struct location *loc,
const char *fmt, va_list ap)
{
struct error_record *erec;
erec = xmalloc(sizeof(*erec));
erec->type = type;
erec->num_locations = 0;
erec_add_location(erec, loc);
gmp_vasprintf(&erec->msg, fmt, ap);
return erec;
}
struct error_record *erec_create(enum error_record_types type,
const struct location *loc,
const char *fmt, ...)
{
struct error_record *erec;
va_list ap;
va_start(ap, fmt);
erec = erec_vcreate(type, loc, fmt, ap);
va_end(ap);
return erec;
}
void erec_print(FILE *f, const struct error_record *erec)
{
const struct location *loc = erec->locations, *iloc;
const struct input_descriptor *indesc = loc->indesc, *tmp;
const char *line = NULL; /* silence gcc */
char buf[1024];
unsigned int i, end;
int l, ret;
switch (indesc->type) {
case INDESC_BUFFER:
case INDESC_CLI:
line = indesc->data;
break;
case INDESC_FILE:
memset(buf, 0, sizeof(buf));
lseek(indesc->fd, loc->line_offset, SEEK_SET);
ret = read(indesc->fd, buf, sizeof(buf) - 1);
if (ret > 0)
*strchrnul(buf, '\n') = '\0';
line = buf;
break;
case INDESC_INTERNAL:
case INDESC_NETLINK:
break;
default:
BUG("invalid input descriptor type %u\n", indesc->type);
}
if (indesc->type == INDESC_NETLINK) {
fprintf(f, "%s: ", indesc->name);
if (error_record_names[erec->type])
fprintf(f, "%s: ", error_record_names[erec->type]);
fprintf(f, "%s\n", erec->msg);
for (l = 0; l < (int)erec->num_locations; l++) {
loc = &erec->locations[l];
netlink_dump_expr(loc->nle);
}
fprintf(f, "\n");
} else {
if (indesc->location.indesc != NULL) {
const char *prefix = "In file included from";
iloc = &indesc->location;
for (tmp = iloc->indesc;
tmp != NULL && tmp->type != INDESC_INTERNAL;
tmp = iloc->indesc) {
fprintf(f, "%s %s:%u:%u-%u:\n", prefix,
tmp->name,
iloc->first_line, iloc->first_column,
iloc->last_column);
prefix = " from";
iloc = &tmp->location;
}
}
if (indesc->name != NULL)
fprintf(f, "%s:%u:%u-%u: ", indesc->name,
loc->first_line, loc->first_column,
loc->last_column);
if (error_record_names[erec->type])
fprintf(f, "%s: ", error_record_names[erec->type]);
fprintf(f, "%s\n", erec->msg);
if (indesc->type != INDESC_INTERNAL)
fprintf(f, "%s\n", line);
memset(buf, ' ', sizeof(buf));
end = 0;
for (l = erec->num_locations - 1; l >= 0; l--) {
loc = &erec->locations[l];
for (i = loc->first_column ? loc->first_column - 1 : 0;
i < loc->last_column; i++)
buf[i] = l ? '~' : '^';
end = max(end, loc->last_column);
}
buf[end] = '\0';
fprintf(f, "%s", buf);
}
fprintf(f, "\n");
}
void erec_print_list(FILE *f, struct list_head *list)
{
struct error_record *erec, *next;
list_for_each_entry_safe(erec, next, list, list) {
list_del(&erec->list);
erec_print(f, erec);
erec_destroy(erec);
}
}
|
