Adding upstream version 2.39.3.upstream/2.39.3

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 174 insertions, 0 deletions

diff --git a/lib/signames.c b/lib/signames.c
new file mode 100644
index 0000000..d0d2bff
--- /dev/null
+++ b/lib/signames.c
@@ -0,0 +1,174 @@
+/*
+ * No copyright is claimed.  This code is in the public domain; do with
+ * it what you wish.
+
+ * Written by:
+ *  Sami Kerola <kerolasa@iki.fi>
+ *  Karel Zak <kzak@redhat.com>
+ *  Niklas Hambüchen <mail@nh2.me>
+ */
+
+#include <ctype.h>		/* for isdigit() */
+#include <signal.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+
+#include "c.h"
+#include "cctype.h"
+#include "strutils.h"
+#include "signames.h"
+
+static const struct ul_signal_name {
+	const char *name;
+	int val;
+} ul_signames[] = {
+	/* POSIX signals */
+	{ "HUP",	SIGHUP },	/* 1 */
+	{ "INT",	SIGINT },	/* 2 */
+	{ "QUIT",	SIGQUIT },	/* 3 */
+	{ "ILL",	SIGILL },	/* 4 */
+#ifdef SIGTRAP
+	{ "TRAP",	SIGTRAP },	/* 5 */
+#endif
+	{ "ABRT",	SIGABRT },	/* 6 */
+#ifdef SIGIOT
+	{ "IOT",	SIGIOT },	/* 6, same as SIGABRT */
+#endif
+#ifdef SIGEMT
+	{ "EMT",	SIGEMT },	/* 7 (mips,alpha,sparc*) */
+#endif
+#ifdef SIGBUS
+	{ "BUS",	SIGBUS },	/* 7 (arm,i386,m68k,ppc), 10 (mips,alpha,sparc*) */
+#endif
+	{ "FPE",	SIGFPE },	/* 8 */
+	{ "KILL",	SIGKILL },	/* 9 */
+	{ "USR1",	SIGUSR1 },	/* 10 (arm,i386,m68k,ppc), 30 (alpha,sparc*), 16 (mips) */
+	{ "SEGV",	SIGSEGV },	/* 11 */
+	{ "USR2",	SIGUSR2 },	/* 12 (arm,i386,m68k,ppc), 31 (alpha,sparc*), 17 (mips) */
+	{ "PIPE",	SIGPIPE },	/* 13 */
+	{ "ALRM",	SIGALRM },	/* 14 */
+	{ "TERM",	SIGTERM },	/* 15 */
+#ifdef SIGSTKFLT
+	{ "STKFLT",	SIGSTKFLT },	/* 16 (arm,i386,m68k,ppc) */
+#endif
+	{ "CHLD",	SIGCHLD },	/* 17 (arm,i386,m68k,ppc), 20 (alpha,sparc*), 18 (mips) */
+#ifdef SIGCLD
+	{ "CLD",	SIGCLD },	/* same as SIGCHLD (mips) */
+#endif
+	{ "CONT",	SIGCONT },	/* 18 (arm,i386,m68k,ppc), 19 (alpha,sparc*), 25 (mips) */
+	{ "STOP",	SIGSTOP },	/* 19 (arm,i386,m68k,ppc), 17 (alpha,sparc*), 23 (mips) */
+	{ "TSTP",	SIGTSTP },	/* 20 (arm,i386,m68k,ppc), 18 (alpha,sparc*), 24 (mips) */
+	{ "TTIN",	SIGTTIN },	/* 21 (arm,i386,m68k,ppc,alpha,sparc*), 26 (mips) */
+	{ "TTOU",	SIGTTOU },	/* 22 (arm,i386,m68k,ppc,alpha,sparc*), 27 (mips) */
+#ifdef SIGURG
+	{ "URG",	SIGURG },	/* 23 (arm,i386,m68k,ppc), 16 (alpha,sparc*), 21 (mips) */
+#endif
+#ifdef SIGXCPU
+	{ "XCPU",	SIGXCPU },	/* 24 (arm,i386,m68k,ppc,alpha,sparc*), 30 (mips) */
+#endif
+#ifdef SIGXFSZ
+	{ "XFSZ",	SIGXFSZ },	/* 25 (arm,i386,m68k,ppc,alpha,sparc*), 31 (mips) */
+#endif
+#ifdef SIGVTALRM
+	{ "VTALRM",	SIGVTALRM },	/* 26 (arm,i386,m68k,ppc,alpha,sparc*), 28 (mips) */
+#endif
+#ifdef SIGPROF
+	{ "PROF",	SIGPROF },	/* 27 (arm,i386,m68k,ppc,alpha,sparc*), 29 (mips) */
+#endif
+#ifdef SIGWINCH
+	{ "WINCH",	SIGWINCH },	/* 28 (arm,i386,m68k,ppc,alpha,sparc*), 20 (mips) */
+#endif
+#ifdef SIGIO
+	{ "IO",		SIGIO },	/* 29 (arm,i386,m68k,ppc), 23 (alpha,sparc*), 22 (mips) */
+#endif
+#ifdef SIGPOLL
+	{ "POLL",	SIGPOLL },	/* same as SIGIO */
+#endif
+#ifdef SIGINFO
+	{ "INFO",	SIGINFO },	/* 29 (alpha) */
+#endif
+#ifdef SIGLOST
+	{ "LOST",	SIGLOST },	/* 29 (arm,i386,m68k,ppc,sparc*) */
+#endif
+#ifdef SIGPWR
+	{ "PWR",	SIGPWR },	/* 30 (arm,i386,m68k,ppc), 29 (alpha,sparc*), 19 (mips) */
+#endif
+#ifdef SIGUNUSED
+	{ "UNUSED",	SIGUNUSED },	/* 31 (arm,i386,m68k,ppc) */
+#endif
+#ifdef SIGSYS
+	{ "SYS",	SIGSYS },	/* 31 (mips,alpha,sparc*) */
+#endif
+};
+
+#ifdef SIGRTMIN
+static int rtsig_to_signum(const char *sig)
+{
+	int num, maxi = 0;
+	char *ep = NULL;
+
+	if (c_strncasecmp(sig, "min+", 4) == 0)
+		sig += 4;
+	else if (c_strncasecmp(sig, "max-", 4) == 0) {
+		sig += 4;
+		maxi = 1;
+	}
+	if (!isdigit(*sig))
+		return -1;
+	errno = 0;
+	num = strtol(sig, &ep, 10);
+	if (!ep || sig == ep || errno || num < 0)
+		return -1;
+	num = maxi ? SIGRTMAX - num : SIGRTMIN + num;
+	if (num < SIGRTMIN || SIGRTMAX < num)
+		return -1;
+	return num;
+}
+#endif
+
+int signame_to_signum(const char *sig)
+{
+	size_t n;
+
+	if (!c_strncasecmp(sig, "sig", 3))
+		sig += 3;
+#ifdef SIGRTMIN
+	/* RT signals */
+	if (!c_strncasecmp(sig, "rt", 2))
+		return rtsig_to_signum(sig + 2);
+#endif
+	/* Normal signals */
+	for (n = 0; n < ARRAY_SIZE(ul_signames); n++) {
+		if (!c_strcasecmp(ul_signames[n].name, sig))
+			return ul_signames[n].val;
+	}
+	return -1;
+}
+
+const char *signum_to_signame(int signum)
+{
+	size_t n;
+
+	for (n = 0; n < ARRAY_SIZE(ul_signames); n++) {
+		if (ul_signames[n].val == signum) {
+			return ul_signames[n].name;
+		}
+	}
+
+	return NULL;
+}
+
+int get_signame_by_idx(size_t idx, const char **signame, int *signum)
+{
+	if (idx >= ARRAY_SIZE(ul_signames))
+		return -1;
+
+	if (signame)
+		*signame = ul_signames[idx].name;
+	if (signum)
+		*signum = ul_signames[idx].val;
+	return 0;
+
+}
+