C signal handling: Difference between revisions

Revision as of 02:11, 6 November 2023

Latest revision as of 12:32, 23 May 2024

(One intermediate revision by one other user not shown)

Line 11:

*<code>SIGABRT</code> – "abort", abnormal termination.

*<code>SIGFPE</code> – [[Floating point exception|floating point exception]].

*<code>SIGILL</code> – "illegal", invalid instruction.

*<code>SIGINT</code> – "interrupt", interactive attention request sent to the program.

*<code>SIGSEGV</code> – "[[segmentation violation|segmentation violation]]", invalid memory access.

*<code>SIGTERM</code> – "terminate", termination request sent to the program.

Line 54:

#include <stdio.h>

#include <stdlib.h>

volatile sig_atomic_t status = 0;

static void catch_function(int signo) {

status = signo;

puts("Interactive attention signal caught.");

}

Line 66 ⟶ 68:

}

puts("Raising the interactive attention signal.");

if (raise(SIGINT) != 0) {

fputs("Error raising the signal.\n", stderr);

return EXIT_FAILURE;

}

if (status == SIGINT) puts("Interactive attention signal caught.");

puts("Exiting.");

return EXIT_SUCCESS;