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-rw-r--r--src/shared/ask-password-api.c2
-rw-r--r--src/shared/log.c1
-rw-r--r--src/shared/machine-pool.c1
-rw-r--r--src/shared/process-util.c3
-rw-r--r--src/shared/pty.c3
-rw-r--r--src/shared/signal-util.c228
-rw-r--r--src/shared/signal-util.h41
-rw-r--r--src/shared/util.c205
-rw-r--r--src/shared/util.h16
9 files changed, 277 insertions, 223 deletions
diff --git a/src/shared/ask-password-api.c b/src/shared/ask-password-api.c
index a3a2e51bb9..ef3788be68 100644
--- a/src/shared/ask-password-api.c
+++ b/src/shared/ask-password-api.c
@@ -37,7 +37,7 @@
#include "strv.h"
#include "random-util.h"
#include "terminal-util.h"
-
+#include "signal-util.h"
#include "ask-password-api.h"
static void backspace_chars(int ttyfd, size_t p) {
diff --git a/src/shared/log.c b/src/shared/log.c
index 6168a2955d..b96afc4de4 100644
--- a/src/shared/log.c
+++ b/src/shared/log.c
@@ -38,6 +38,7 @@
#include "formats-util.h"
#include "process-util.h"
#include "terminal-util.h"
+#include "signal-util.h"
#define SNDBUF_SIZE (8*1024*1024)
diff --git a/src/shared/machine-pool.c b/src/shared/machine-pool.c
index 447983fb1b..d27931cb4a 100644
--- a/src/shared/machine-pool.c
+++ b/src/shared/machine-pool.c
@@ -30,6 +30,7 @@
#include "mkdir.h"
#include "btrfs-util.h"
#include "path-util.h"
+#include "signal-util.h"
#include "machine-pool.h"
#define VAR_LIB_MACHINES_SIZE_START (1024UL*1024UL*500UL)
diff --git a/src/shared/process-util.c b/src/shared/process-util.c
index 92a69f50e7..cfc876567d 100644
--- a/src/shared/process-util.c
+++ b/src/shared/process-util.c
@@ -28,10 +28,11 @@
#include <signal.h>
#include <ctype.h>
-#include "process-util.h"
#include "fileio.h"
#include "util.h"
#include "log.h"
+#include "signal-util.h"
+#include "process-util.h"
int get_process_state(pid_t pid) {
const char *p;
diff --git a/src/shared/pty.c b/src/shared/pty.c
index 0f80f4863b..119d66e9a2 100644
--- a/src/shared/pty.c
+++ b/src/shared/pty.c
@@ -57,9 +57,10 @@
#include "barrier.h"
#include "macro.h"
-#include "pty.h"
#include "ring.h"
#include "util.h"
+#include "signal-util.h"
+#include "pty.h"
#define PTY_BUFSIZE 4096
diff --git a/src/shared/signal-util.c b/src/shared/signal-util.c
new file mode 100644
index 0000000000..9a2973b6fd
--- /dev/null
+++ b/src/shared/signal-util.c
@@ -0,0 +1,228 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2015 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include "util.h"
+#include "signal-util.h"
+
+int reset_all_signal_handlers(void) {
+ int sig, r = 0;
+
+ for (sig = 1; sig < _NSIG; sig++) {
+ static const struct sigaction sa = {
+ .sa_handler = SIG_DFL,
+ .sa_flags = SA_RESTART,
+ };
+
+ /* These two cannot be caught... */
+ if (sig == SIGKILL || sig == SIGSTOP)
+ continue;
+
+ /* On Linux the first two RT signals are reserved by
+ * glibc, and sigaction() will return EINVAL for them. */
+ if ((sigaction(sig, &sa, NULL) < 0))
+ if (errno != EINVAL && r == 0)
+ r = -errno;
+ }
+
+ return r;
+}
+
+int reset_signal_mask(void) {
+ sigset_t ss;
+
+ if (sigemptyset(&ss) < 0)
+ return -errno;
+
+ if (sigprocmask(SIG_SETMASK, &ss, NULL) < 0)
+ return -errno;
+
+ return 0;
+}
+
+int sigaction_many(const struct sigaction *sa, ...) {
+ va_list ap;
+ int r = 0, sig;
+
+ va_start(ap, sa);
+ while ((sig = va_arg(ap, int)) > 0)
+ if (sigaction(sig, sa, NULL) < 0)
+ r = -errno;
+ va_end(ap);
+
+ return r;
+}
+
+int ignore_signals(int sig, ...) {
+ static const struct sigaction sa = {
+ .sa_handler = SIG_IGN,
+ .sa_flags = SA_RESTART,
+ };
+ va_list ap;
+ int r = 0;
+
+ if (sigaction(sig, &sa, NULL) < 0)
+ r = -errno;
+
+ va_start(ap, sig);
+ while ((sig = va_arg(ap, int)) > 0)
+ if (sigaction(sig, &sa, NULL) < 0)
+ r = -errno;
+ va_end(ap);
+
+ return r;
+}
+
+int default_signals(int sig, ...) {
+ static const struct sigaction sa = {
+ .sa_handler = SIG_DFL,
+ .sa_flags = SA_RESTART,
+ };
+ va_list ap;
+ int r = 0;
+
+ if (sigaction(sig, &sa, NULL) < 0)
+ r = -errno;
+
+ va_start(ap, sig);
+ while ((sig = va_arg(ap, int)) > 0)
+ if (sigaction(sig, &sa, NULL) < 0)
+ r = -errno;
+ va_end(ap);
+
+ return r;
+}
+
+void sigset_add_many(sigset_t *ss, ...) {
+ va_list ap;
+ int sig;
+
+ assert(ss);
+
+ va_start(ap, ss);
+ while ((sig = va_arg(ap, int)) > 0)
+ assert_se(sigaddset(ss, sig) == 0);
+ va_end(ap);
+}
+
+int sigprocmask_many(int how, ...) {
+ va_list ap;
+ sigset_t ss;
+ int sig;
+
+ assert_se(sigemptyset(&ss) == 0);
+
+ va_start(ap, how);
+ while ((sig = va_arg(ap, int)) > 0)
+ assert_se(sigaddset(&ss, sig) == 0);
+ va_end(ap);
+
+ if (sigprocmask(how, &ss, NULL) < 0)
+ return -errno;
+
+ return 0;
+}
+
+static const char *const __signal_table[] = {
+ [SIGHUP] = "HUP",
+ [SIGINT] = "INT",
+ [SIGQUIT] = "QUIT",
+ [SIGILL] = "ILL",
+ [SIGTRAP] = "TRAP",
+ [SIGABRT] = "ABRT",
+ [SIGBUS] = "BUS",
+ [SIGFPE] = "FPE",
+ [SIGKILL] = "KILL",
+ [SIGUSR1] = "USR1",
+ [SIGSEGV] = "SEGV",
+ [SIGUSR2] = "USR2",
+ [SIGPIPE] = "PIPE",
+ [SIGALRM] = "ALRM",
+ [SIGTERM] = "TERM",
+#ifdef SIGSTKFLT
+ [SIGSTKFLT] = "STKFLT", /* Linux on SPARC doesn't know SIGSTKFLT */
+#endif
+ [SIGCHLD] = "CHLD",
+ [SIGCONT] = "CONT",
+ [SIGSTOP] = "STOP",
+ [SIGTSTP] = "TSTP",
+ [SIGTTIN] = "TTIN",
+ [SIGTTOU] = "TTOU",
+ [SIGURG] = "URG",
+ [SIGXCPU] = "XCPU",
+ [SIGXFSZ] = "XFSZ",
+ [SIGVTALRM] = "VTALRM",
+ [SIGPROF] = "PROF",
+ [SIGWINCH] = "WINCH",
+ [SIGIO] = "IO",
+ [SIGPWR] = "PWR",
+ [SIGSYS] = "SYS"
+};
+
+DEFINE_PRIVATE_STRING_TABLE_LOOKUP(__signal, int);
+
+const char *signal_to_string(int signo) {
+ static thread_local char buf[sizeof("RTMIN+")-1 + DECIMAL_STR_MAX(int) + 1];
+ const char *name;
+
+ name = __signal_to_string(signo);
+ if (name)
+ return name;
+
+ if (signo >= SIGRTMIN && signo <= SIGRTMAX)
+ snprintf(buf, sizeof(buf), "RTMIN+%d", signo - SIGRTMIN);
+ else
+ snprintf(buf, sizeof(buf), "%d", signo);
+
+ return buf;
+}
+
+int signal_from_string(const char *s) {
+ int signo;
+ int offset = 0;
+ unsigned u;
+
+ signo = __signal_from_string(s);
+ if (signo > 0)
+ return signo;
+
+ if (startswith(s, "RTMIN+")) {
+ s += 6;
+ offset = SIGRTMIN;
+ }
+ if (safe_atou(s, &u) >= 0) {
+ signo = (int) u + offset;
+ if (signo > 0 && signo < _NSIG)
+ return signo;
+ }
+ return -EINVAL;
+}
+
+int signal_from_string_try_harder(const char *s) {
+ int signo;
+ assert(s);
+
+ signo = signal_from_string(s);
+ if (signo <= 0)
+ if (startswith(s, "SIG"))
+ return signal_from_string(s+3);
+
+ return signo;
+}
diff --git a/src/shared/signal-util.h b/src/shared/signal-util.h
new file mode 100644
index 0000000000..ddf64cda76
--- /dev/null
+++ b/src/shared/signal-util.h
@@ -0,0 +1,41 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2010-2015 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <signal.h>
+
+#include "macro.h"
+
+int reset_all_signal_handlers(void);
+int reset_signal_mask(void);
+
+int ignore_signals(int sig, ...);
+int default_signals(int sig, ...);
+int sigaction_many(const struct sigaction *sa, ...);
+
+void sigset_add_many(sigset_t *ss, ...);
+int sigprocmask_many(int how, ...);
+
+const char *signal_to_string(int i) _const_;
+int signal_from_string(const char *s) _pure_;
+
+int signal_from_string_try_harder(const char *s);
diff --git a/src/shared/util.c b/src/shared/util.c
index 74a2190031..8a6107969a 100644
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -93,6 +93,7 @@
#include "random-util.h"
#include "terminal-util.h"
#include "hostname-util.h"
+#include "signal-util.h"
/* Put this test here for a lack of better place */
assert_cc(EAGAIN == EWOULDBLOCK);
@@ -771,41 +772,6 @@ int readlink_and_canonicalize(const char *p, char **r) {
return 0;
}
-int reset_all_signal_handlers(void) {
- int sig, r = 0;
-
- for (sig = 1; sig < _NSIG; sig++) {
- struct sigaction sa = {
- .sa_handler = SIG_DFL,
- .sa_flags = SA_RESTART,
- };
-
- /* These two cannot be caught... */
- if (sig == SIGKILL || sig == SIGSTOP)
- continue;
-
- /* On Linux the first two RT signals are reserved by
- * glibc, and sigaction() will return EINVAL for them. */
- if ((sigaction(sig, &sa, NULL) < 0))
- if (errno != EINVAL && r == 0)
- r = -errno;
- }
-
- return r;
-}
-
-int reset_signal_mask(void) {
- sigset_t ss;
-
- if (sigemptyset(&ss) < 0)
- return -errno;
-
- if (sigprocmask(SIG_SETMASK, &ss, NULL) < 0)
- return -errno;
-
- return 0;
-}
-
char *strstrip(char *s) {
char *e;
@@ -1561,59 +1527,6 @@ int flush_fd(int fd) {
}
}
-int sigaction_many(const struct sigaction *sa, ...) {
- va_list ap;
- int r = 0, sig;
-
- va_start(ap, sa);
- while ((sig = va_arg(ap, int)) > 0)
- if (sigaction(sig, sa, NULL) < 0)
- r = -errno;
- va_end(ap);
-
- return r;
-}
-
-int ignore_signals(int sig, ...) {
- struct sigaction sa = {
- .sa_handler = SIG_IGN,
- .sa_flags = SA_RESTART,
- };
- va_list ap;
- int r = 0;
-
- if (sigaction(sig, &sa, NULL) < 0)
- r = -errno;
-
- va_start(ap, sig);
- while ((sig = va_arg(ap, int)) > 0)
- if (sigaction(sig, &sa, NULL) < 0)
- r = -errno;
- va_end(ap);
-
- return r;
-}
-
-int default_signals(int sig, ...) {
- struct sigaction sa = {
- .sa_handler = SIG_DFL,
- .sa_flags = SA_RESTART,
- };
- va_list ap;
- int r = 0;
-
- if (sigaction(sig, &sa, NULL) < 0)
- r = -errno;
-
- va_start(ap, sig);
- while ((sig = va_arg(ap, int)) > 0)
- if (sigaction(sig, &sa, NULL) < 0)
- r = -errno;
- va_end(ap);
-
- return r;
-}
-
void safe_close_pair(int p[]) {
assert(p);
@@ -1927,35 +1840,6 @@ void rename_process(const char name[8]) {
}
}
-void sigset_add_many(sigset_t *ss, ...) {
- va_list ap;
- int sig;
-
- assert(ss);
-
- va_start(ap, ss);
- while ((sig = va_arg(ap, int)) > 0)
- assert_se(sigaddset(ss, sig) == 0);
- va_end(ap);
-}
-
-int sigprocmask_many(int how, ...) {
- va_list ap;
- sigset_t ss;
- int sig;
-
- assert_se(sigemptyset(&ss) == 0);
-
- va_start(ap, how);
- while ((sig = va_arg(ap, int)) > 0)
- assert_se(sigaddset(&ss, sig) == 0);
- va_end(ap);
-
- if (sigprocmask(how, &ss, NULL) < 0)
- return -errno;
-
- return 0;
-}
char *lookup_uid(uid_t uid) {
long bufsize;
char *name;
@@ -2344,18 +2228,6 @@ DIR *xopendirat(int fd, const char *name, int flags) {
return d;
}
-int signal_from_string_try_harder(const char *s) {
- int signo;
- assert(s);
-
- signo = signal_from_string(s);
- if (signo <= 0)
- if (startswith(s, "SIG"))
- return signal_from_string(s+3);
-
- return signo;
-}
-
static char *tag_to_udev_node(const char *tagvalue, const char *by) {
_cleanup_free_ char *t = NULL, *u = NULL;
size_t enc_len;
@@ -3312,81 +3184,6 @@ static const char* const ip_tos_table[] = {
DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(ip_tos, int, 0xff);
-static const char *const __signal_table[] = {
- [SIGHUP] = "HUP",
- [SIGINT] = "INT",
- [SIGQUIT] = "QUIT",
- [SIGILL] = "ILL",
- [SIGTRAP] = "TRAP",
- [SIGABRT] = "ABRT",
- [SIGBUS] = "BUS",
- [SIGFPE] = "FPE",
- [SIGKILL] = "KILL",
- [SIGUSR1] = "USR1",
- [SIGSEGV] = "SEGV",
- [SIGUSR2] = "USR2",
- [SIGPIPE] = "PIPE",
- [SIGALRM] = "ALRM",
- [SIGTERM] = "TERM",
-#ifdef SIGSTKFLT
- [SIGSTKFLT] = "STKFLT", /* Linux on SPARC doesn't know SIGSTKFLT */
-#endif
- [SIGCHLD] = "CHLD",
- [SIGCONT] = "CONT",
- [SIGSTOP] = "STOP",
- [SIGTSTP] = "TSTP",
- [SIGTTIN] = "TTIN",
- [SIGTTOU] = "TTOU",
- [SIGURG] = "URG",
- [SIGXCPU] = "XCPU",
- [SIGXFSZ] = "XFSZ",
- [SIGVTALRM] = "VTALRM",
- [SIGPROF] = "PROF",
- [SIGWINCH] = "WINCH",
- [SIGIO] = "IO",
- [SIGPWR] = "PWR",
- [SIGSYS] = "SYS"
-};
-
-DEFINE_PRIVATE_STRING_TABLE_LOOKUP(__signal, int);
-
-const char *signal_to_string(int signo) {
- static thread_local char buf[sizeof("RTMIN+")-1 + DECIMAL_STR_MAX(int) + 1];
- const char *name;
-
- name = __signal_to_string(signo);
- if (name)
- return name;
-
- if (signo >= SIGRTMIN && signo <= SIGRTMAX)
- snprintf(buf, sizeof(buf), "RTMIN+%d", signo - SIGRTMIN);
- else
- snprintf(buf, sizeof(buf), "%d", signo);
-
- return buf;
-}
-
-int signal_from_string(const char *s) {
- int signo;
- int offset = 0;
- unsigned u;
-
- signo = __signal_from_string(s);
- if (signo > 0)
- return signo;
-
- if (startswith(s, "RTMIN+")) {
- s += 6;
- offset = SIGRTMIN;
- }
- if (safe_atou(s, &u) >= 0) {
- signo = (int) u + offset;
- if (signo > 0 && signo < _NSIG)
- return signo;
- }
- return -EINVAL;
-}
-
bool kexec_loaded(void) {
bool loaded = false;
char *s;
diff --git a/src/shared/util.h b/src/shared/util.h
index eb3595250d..467ae234a0 100644
--- a/src/shared/util.h
+++ b/src/shared/util.h
@@ -29,7 +29,6 @@
#include <stdbool.h>
#include <stdlib.h>
#include <stdio.h>
-#include <signal.h>
#include <sched.h>
#include <limits.h>
#include <sys/types.h>
@@ -227,9 +226,6 @@ int readlink_value(const char *p, char **ret);
int readlink_and_make_absolute(const char *p, char **r);
int readlink_and_canonicalize(const char *p, char **r);
-int reset_all_signal_handlers(void);
-int reset_signal_mask(void);
-
char *strstrip(char *s);
char *delete_chars(char *s, const char *bad);
char *truncate_nl(char *s);
@@ -334,10 +330,6 @@ bool fstype_is_network(const char *fstype);
int flush_fd(int fd);
-int ignore_signals(int sig, ...);
-int default_signals(int sig, ...);
-int sigaction_many(const struct sigaction *sa, ...);
-
int fopen_temporary(const char *path, FILE **_f, char **_temp_path);
ssize_t loop_read(int fd, void *buf, size_t nbytes, bool do_poll);
@@ -349,9 +341,6 @@ bool is_device_path(const char *path);
int dir_is_empty(const char *path);
char* dirname_malloc(const char *path);
-void sigset_add_many(sigset_t *ss, ...);
-int sigprocmask_many(int how, ...);
-
char* lookup_uid(uid_t uid);
char* getlogname_malloc(void);
char* getusername_malloc(void);
@@ -465,11 +454,6 @@ int rlimit_from_string(const char *s) _pure_;
int ip_tos_to_string_alloc(int i, char **s);
int ip_tos_from_string(const char *s);
-const char *signal_to_string(int i) _const_;
-int signal_from_string(const char *s) _pure_;
-
-int signal_from_string_try_harder(const char *s);
-
extern int saved_argc;
extern char **saved_argv;
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-04 20:50:59 +0000