From 4abab5ad6c8465a7528ccdd5f49367da05f78bbd Mon Sep 17 00:00:00 2001 From: Vladimir Azarov Date: Tue, 1 Oct 2024 15:47:05 +0200 Subject: Initial version --- src/signal/psignal.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 src/signal/psignal.c (limited to 'src/signal/psignal.c') diff --git a/src/signal/psignal.c b/src/signal/psignal.c new file mode 100644 index 0000000..138dbe0 --- /dev/null +++ b/src/signal/psignal.c @@ -0,0 +1,27 @@ +#include "stdio_impl.h" +#include +#include +#include + +void psignal(int sig, const char *msg) +{ + FILE *f = stderr; + char *s = strsignal(sig); + + FLOCK(f); + + /* Save stderr's orientation and encoding rule, since psignal is not + * permitted to change them. Save errno and restore it if there is no + * error since fprintf might change it even on success but psignal is + * not permitted to do so. */ + void *old_locale = f->locale; + int old_mode = f->mode; + int old_errno = errno; + + if (fprintf(f, "%s%s%s\n", msg?msg:"", msg?": ":"", s)>=0) + errno = old_errno; + f->mode = old_mode; + f->locale = old_locale; + + FUNLOCK(f); +} -- cgit v1.2.3