1 files changed, 98 insertions, 0 deletions
diff --git a/src/string/strsignal.c b/src/string/strsignal.c
new file mode 100644
index 00000000..72fba8d1
--- /dev/null
+++ b/src/string/strsignal.c
@@ -0,0 +1,98 @@
+#include <signal.h>
+
+#if (SIGHUP == 1) && (SIGINT == 2) && (SIGQUIT == 3) && (SIGILL == 4) \
+ && (SIGTRAP == 5) && (SIGABRT == 6) && (SIGBUS == 7) && (SIGFPE == 8) \
+ && (SIGKILL == 9) && (SIGUSR1 == 10) && (SIGSEGV == 11) && (SIGUSR2 == 12) \
+ && (SIGPIPE == 13) && (SIGALRM == 14) && (SIGTERM == 15) && (SIGSTKFLT == 16) \
+ && (SIGCHLD == 17) && (SIGCONT == 18) && (SIGSTOP == 19) && (SIGTSTP == 20) \
+ && (SIGTTIN == 21) && (SIGTTOU == 22) && (SIGURG == 23) && (SIGXCPU == 24) \
+ && (SIGXFSZ == 25) && (SIGVTALRM == 26) && (SIGPROF == 27) && (SIGWINCH == 28) \
+ && (SIGPOLL == 29) && (SIGPWR == 30) && (SIGSYS == 31)
+
+#define sigmap(x) x
+
+#else
+
+static const char map[] = {
+	[SIGHUP]    = 1,
+	[SIGINT]    = 2,
+	[SIGQUIT]   = 3,
+	[SIGILL]    = 4,
+	[SIGTRAP]   = 5,
+	[SIGABRT]   = 6,
+	[SIGBUS]    = 7,
+	[SIGFPE]    = 8,
+	[SIGKILL]   = 9,
+	[SIGUSR1]   = 10,
+	[SIGSEGV]   = 11,
+	[SIGUSR2]   = 12,
+	[SIGPIPE]   = 13,
+	[SIGALRM]   = 14,
+	[SIGTERM]   = 15,
+	[SIGSTKFLT] = 16,
+	[SIGCHLD]   = 17,
+	[SIGCONT]   = 18,
+	[SIGSTOP]   = 19,
+	[SIGTSTP]   = 20,
+	[SIGTTIN]   = 21,
+	[SIGTTOU]   = 22,
+	[SIGURG]    = 23,
+	[SIGXCPU]   = 24,
+	[SIGXFSZ]   = 25,
+	[SIGVTALRM] = 26,
+	[SIGPROF]   = 27,
+	[SIGWINCH]  = 28,
+	[SIGPOLL]   = 29,
+	[SIGPWR]    = 30,
+	[SIGSYS]    = 31
+};
+
+#define sigmap(x) ((unsigned)(x) > sizeof map ? 0 : map[(unsigned)(x)])
+
+#endif
+
+static const char strings[] =
+	"Unknown signal\0"
+	"Hangup\0"
+	"Interrupt\0"
+	"Quit\0"
+	"Illegal instruction\0"
+	"Trace/breakpoint trap\0"
+	"Aborted\0"
+	"Bus error\0"
+	"Floating point exception\0"
+	"Killed\0"
+	"User defined signal 1\0"
+	"Segmentation fault\0"
+	"User defined signal 2\0"
+	"Broken pipe\0"
+	"Alarm clock\0"
+	"Terminated\0"
+	"Stack fault\0"
+	"Child exited\0"
+	"Continued\0"
+	"Stopped (signal)\0"
+	"Stopped\0"
+	"Stopped (tty input)\0"
+	"Stopped (tty output)\0"
+	"Urgent I/O condition\0"
+	"CPU time limit exceeded\0"
+	"File size limit exceeded\0"
+	"Virtual timer expired\0"
+	"Profiling timer expired\0"
+	"Window changed\0"
+	"I/O possible\0"
+	"Power failure\0"
+	"Bad system call";
+
+char *strsignal(int signum)
+{
+	char *s = (char *)strings;
+
+	signum = sigmap(signum);
+	if ((unsigned)signum - 1 > 31) signum = 0;
+
+	for (; signum--; s++) for (; *s; s++);
+
+	return s;
+}