summaryrefslogtreecommitdiff
path: root/libbb/u_signal_names.c
blob: f8eaea76da52311499d1e329e54d60dc6a08e095 (plain)
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
/* vi: set sw=4 ts=4: */
/*
 * Signal name/number conversion routines.
 *
 * Copyright 2006 Rob Landley <rob@landley.net>
 *
 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
 */

#include "libbb.h"

static const char signals[32][7] = {
	// SUSv3 says kill must support these, and specifies the numerical values,
	// http://www.opengroup.org/onlinepubs/009695399/utilities/kill.html
	// TODO: "[SIG]EXIT" shouldn't work for kill, right?
	// {0, "EXIT"}, {1, "HUP"}, {2, "INT"}, {3, "QUIT"},
	// {6, "ABRT"}, {9, "KILL"}, {14, "ALRM"}, {15, "TERM"}
	// And Posix adds the following:
	// {SIGILL, "ILL"}, {SIGTRAP, "TRAP"}, {SIGFPE, "FPE"}, {SIGUSR1, "USR1"},
	// {SIGSEGV, "SEGV"}, {SIGUSR2, "USR2"}, {SIGPIPE, "PIPE"}, {SIGCHLD, "CHLD"},
	// {SIGCONT, "CONT"}, {SIGSTOP, "STOP"}, {SIGTSTP, "TSTP"}, {SIGTTIN, "TTIN"},
	// {SIGTTOU, "TTOU"}
	[0] = "EXIT",
#ifdef SIGHUP
	[SIGHUP   ] = "HUP",
#endif
#ifdef SIGINT
	[SIGINT   ] = "INT",
#endif
#ifdef SIGQUIT
	[SIGQUIT  ] = "QUIT",
#endif
#ifdef SIGILL
	[SIGILL   ] = "ILL",
#endif
#ifdef SIGTRAP
	[SIGTRAP  ] = "TRAP",
#endif
#ifdef SIGABRT
	[SIGABRT  ] = "ABRT",
#endif
#ifdef SIGBUS
	[SIGBUS   ] = "BUS",
#endif
#ifdef SIGFPE
	[SIGFPE   ] = "FPE",
#endif
#ifdef SIGKILL
	[SIGKILL  ] = "KILL",
#endif
#ifdef SIGUSR1
	[SIGUSR1  ] = "USR1",
#endif
#ifdef SIGSEGV
	[SIGSEGV  ] = "SEGV",
#endif
#ifdef SIGUSR2
	[SIGUSR2  ] = "USR2",
#endif
#ifdef SIGPIPE
	[SIGPIPE  ] = "PIPE",
#endif
#ifdef SIGALRM
	[SIGALRM  ] = "ALRM",
#endif
#ifdef SIGTERM
	[SIGTERM  ] = "TERM",
#endif
#ifdef SIGSTKFLT
	[SIGSTKFLT] = "STKFLT",
#endif
#ifdef SIGCHLD
	[SIGCHLD  ] = "CHLD",
#endif
#ifdef SIGCONT
	[SIGCONT  ] = "CONT",
#endif
#ifdef SIGSTOP
	[SIGSTOP  ] = "STOP",
#endif
#ifdef SIGTSTP
	[SIGTSTP  ] = "TSTP",
#endif
#ifdef SIGTTIN
	[SIGTTIN  ] = "TTIN",
#endif
#ifdef SIGTTOU
	[SIGTTOU  ] = "TTOU",
#endif
#ifdef SIGURG
	[SIGURG   ] = "URG",
#endif
#ifdef SIGXCPU
	[SIGXCPU  ] = "XCPU",
#endif
#ifdef SIGXFSZ
	[SIGXFSZ  ] = "XFSZ",
#endif
#ifdef SIGVTALRM
	[SIGVTALRM] = "VTALRM",
#endif
#ifdef SIGPROF
	[SIGPROF  ] = "PROF",
#endif
#ifdef SIGWINCH
	[SIGWINCH ] = "WINCH",
#endif
#ifdef SIGPOLL
	[SIGPOLL  ] = "POLL",
#endif
#ifdef SIGPWR
	[SIGPWR   ] = "PWR",
#endif
#ifdef SIGSYS
	[SIGSYS   ] = "SYS",
#endif
};

// Convert signal name to number.

int get_signum(const char *name)
{
	int i;

	i = bb_strtou(name, NULL, 10);
	if (!errno)
		return i;
	if (strncasecmp(name, "SIG", 3) == 0)
		name += 3;
	for (i = 0; i < ARRAY_SIZE(signals); i++)
		if (strcasecmp(name, signals[i]) == 0)
			return i;

#if ENABLE_DESKTOP && (defined(SIGIOT) || defined(SIGIO))
	/* These are aliased to other names */
	if ((name[0] | 0x20) == 'i' && (name[1] | 0x20) == 'o') {
#ifdef SIGIO
		if (!name[2])
			return SIGIO;
#endif
#ifdef SIGIOT
		if ((name[2] | 0x20) == 't' && !name[3])
			return SIGIOT;
#endif
	}
#endif

	return -1;
}

// Convert signal number to name

const char *get_signame(int number)
{
	if ((unsigned)number < ARRAY_SIZE(signals)) {
		if (signals[number][0]) /* if it's not an empty str */
			return signals[number];
	}

	return itoa(number);
}