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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-14 19:10:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-14 19:10:49 +0000
commitcfe5e3905201349e9cf3f95d52ff4bd100bde37d (patch)
treed0baf160cbee3195249d095f85e52d20c21acf02 /lib/signames.c
parentInitial commit. (diff)
downloadutil-linux-cfe5e3905201349e9cf3f95d52ff4bd100bde37d.tar.xz
util-linux-cfe5e3905201349e9cf3f95d52ff4bd100bde37d.zip
Adding upstream version 2.39.3.upstream/2.39.3
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'lib/signames.c')
-rw-r--r--lib/signames.c174
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;
+
+}
+