psignal.c 929 B

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  1. /*
  2. * Copyright (C) 2002 Manuel Novoa III
  3. * Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
  4. *
  5. * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
  6. */
  7. #include <features.h>
  8. #include <stdio.h>
  9. #include <string.h>
  10. #include <signal.h>
  11. /* libc_hidden_proto(fprintf) */
  12. /* Experimentally off - libc_hidden_proto(strsignal) */
  13. /* TODO: make this threadsafe with a reentrant version of strsignal? */
  14. void psignal(int signum, register const char *message)
  15. {
  16. /* If the program is calling psignal, it's a safe bet that printf and
  17. * friends are used as well. It is also possible that the calling
  18. * program could buffer stderr, or reassign it. */
  19. register const char *sep;
  20. sep = ": ";
  21. if (!(message && *message)) { /* Caller did not supply a prefix message */
  22. message = (sep += 2); /* or passed an empty string. */
  23. }
  24. fprintf(stderr, "%s%s%s\n", message, sep, strsignal(signum));
  25. }