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
|
/*
@mindmaze_header@
*/
#if HAVE_CONFIG_H
#include <config.h>
#endif
#include <mmsysio.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef _WIN32
#include <windows.h>
#endif
#if defined(_MSC_VER)
# define raise_sigill __ud2
#else
# define raise_sigill __builtin_trap
#endif
static
void raise_sigfpe(void)
{
#ifdef _WIN32
RaiseException(EXCEPTION_FLT_DIVIDE_BY_ZERO, 0, 0, NULL);
#else
raise(SIGFPE);
#endif
}
static
int check_open_files(int argc, char* argv[])
{
int i;
int num_fd;
char line[64];
for (i = 0; i < argc; i++)
fprintf(stderr, "%s\n", argv[i]);
num_fd = atoi(argv[argc-1]);
fprintf(stderr, "num_fd = %i\n", num_fd);
for (i = 3; i < 2*num_fd+3; i++) {
sprintf(line, "fd = %i", i);
if (mm_write(i, line, strlen(line)) < 0)
fprintf(stderr, "failed write for fd=%i\n", i);
}
return 0;
}
static
int check_signal(int signum)
{
union {int* iptr; intptr_t v;} val = {.v = 0};
switch (signum) {
case SIGABRT: abort();
case SIGSEGV: printf("%i", *val.iptr); break; // Must raise segfault
case SIGFPE: raise_sigfpe(); break;
case SIGILL: raise_sigill(); break;
default: raise(signum);
}
return EXIT_FAILURE;
}
int main(int argc, char* argv[])
{
if (argc < 2) {
fprintf(stderr, "child-proc: Missing argument\n");
return EXIT_FAILURE;
}
if (strcmp(argv[1], "check-open-files") == 0)
return check_open_files(argc, argv);
if (strcmp(argv[1], "check-exit") == 0)
return atoi(argv[2]);
if (strcmp(argv[1], "check-signal") == 0)
return check_signal(atoi(argv[2]));
fprintf(stderr, "child-proc: invalid argument: %s\n", argv[1]);
return EXIT_FAILURE;
}
|
