blob: e2e77cb3bd07f79764bc0554b06e903ca71f76e2 [file] [log] [blame]
/* signame.c -- get the name of a signal
Copyright 2012 The Go Authors. All rights reserved.
Use of this source code is governed by a BSD-style
license that can be found in the LICENSE file. */
#include <string.h>
#include "runtime.h"
#include "arch.h"
#include "malloc.h"
String Signame (intgo sig) __asm__ (GOSYM_PREFIX "syscall.Signame");
Signame (intgo sig)
const char* s = NULL;
char buf[100];
size_t len;
byte *data;
String ret;
#if defined(HAVE_STRSIGNAL)
s = strsignal (sig);
if (s == NULL)
snprintf(buf, sizeof buf, "signal %ld", (long) sig);
s = buf;
len = __builtin_strlen (s);
data = runtime_mallocgc (len, nil, false);
__builtin_memcpy (data, s, len);
// lowercase first letter: Bad -> bad, but STREAM -> STREAM.
if ('A' <= data[0] && data[0] <= 'Z' && 'a' <= data[1] && data[1] <= 'z')
data[0] += 'a' - 'A';
ret.str = data;
ret.len = len;
return ret;