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32 .\" @(#)psignal.3 8.2 (Berkeley) 2/27/95
33 .\" $FreeBSD: src/lib/libc/gen/psignal.3,v 1.10.2.5 2003/03/15 15:11:05 trhodes Exp $
44 .Nd system signal messages
50 .Fn psignal "unsigned sig" "const char *s"
51 .Vt extern const char * const sys_siglist[] ;
52 .Vt extern const char * const sys_signame[] ;
53 .Vt extern const int sys_nsig ;
56 .Fn strsignal "int sig"
62 functions locate the descriptive message
63 string for a signal number.
67 function accepts a signal number argument
69 and returns a pointer to the corresponding message string.
73 function accepts a signal number argument
75 and writes it to the standard error.
80 and does not point to the null character,
82 is written to the standard error file descriptor
83 prior to the message string,
84 immediately followed by a colon and a space.
85 If the signal number is not recognized
91 The message strings can be accessed directly
92 through the external array
94 indexed by recognized signal numbers.
98 contains short, lower-case abbreviations for signals
99 which are useful for recognizing signal names
101 The external variable
103 contains a count of the strings in
107 Note that the defined variable
109 will typically be the same as
111 but might be different due to newer or older kernels and newer or
112 older libc libraries. For maximum portability you must use
114 to limit-check the above arrays. Additionally, you should check
117 array entries and generate a generic signal name in those cases.