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bsd_signal(2) System Calls Manual bsd_signal(2) NAME bsd_signal - Simplified signal facilities LIBRARY Standard C Library (libc.so, libc.a) SYNOPSIS #include <signal.h> void (*bsd_signal( int sig, void (*function)(int)))(int); STANDARDS Interfaces documented on this reference page conform to industry stan- dards as follows: bsd_signal(): XPG4-UNIX Refer to the standards(5) reference page for more information about in- dustry standards and associated tags. PARAMETERS Defines the signal. Specifies the address of a signal handler. DESCRIPTION The bsd_signal() function provides a partially compatible interface for programs written to historical system interfaces. The handler function should be declared: void handler(int sig); where sig is the signal number. The behaviour is undefined if function is a function that takes more than one argument, or an argument of a different type. This function is a direct replacement for the BSD signal() function for simple applications that are installing a single-argument signal han- dler function. If a BSD signal handler function is being installed that expects more than one argument, the application has to be modified to use sigaction(). The bsd_signal() function differs from signal() in that the SA_RESTART flag is set and the SA_RESETHAND will be clear when the libsys5 version of bsd_signal() is used. The state of these flags is not specified for signal(). RETURN VALUES Upon successful completion, bsd_signal() returns the previous action for sig. Otherwise, SIG_ERR is returned and errno is set to indicate the error. ERRORS Refer to sigaction(2). RELATED INFORMATION Functions: sigaction(2), sigaddset(3), sigemptyset(3), signal(2) Standards: standards(5) delim off bsd_signal(2)