along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include <stdbool.h>
-#include <sys/types.h>
-#include <string.h>
-#include <stdio.h>
#include <assert.h>
+#include <ctype.h>
#include <errno.h>
-#include <unistd.h>
-#include <sys/wait.h>
#include <signal.h>
-#include <ctype.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include "escape.h"
+#include "fd-util.h"
#include "fileio.h"
-#include "util.h"
+#include "fs-util.h"
#include "log.h"
-#include "signal-util.h"
#include "process-util.h"
+#include "signal-util.h"
+#include "string-util.h"
+#include "user-util.h"
+#include "util.h"
int get_process_state(pid_t pid) {
const char *p;
assert(pid >= 0);
p = procfs_file_alloca(pid, "stat");
+
r = read_one_line_file(p, &line);
+ if (r == -ENOENT)
+ return -ESRCH;
if (r < 0)
return r;
p = procfs_file_alloca(pid, "cmdline");
f = fopen(p, "re");
- if (!f)
+ if (!f) {
+ if (errno == ENOENT)
+ return -ESRCH;
return -errno;
+ }
if (max_length == 0) {
size_t len = 0, allocated = 0;
bool eof;
FILE *f;
- if (pid == 0)
+ if (pid == 0 || pid == 1) /* pid 1, and we ourselves certainly aren't a kernel thread */
return 0;
- assert(pid > 0);
+ assert(pid > 1);
p = procfs_file_alloca(pid, "cmdline");
f = fopen(p, "re");
- if (!f)
+ if (!f) {
+ if (errno == ENOENT)
+ return -ESRCH;
return -errno;
+ }
count = fread(&c, 1, 1, f);
eof = feof(f);
int get_process_capeff(pid_t pid, char **capeff) {
const char *p;
+ int r;
assert(capeff);
assert(pid >= 0);
p = procfs_file_alloca(pid, "status");
- return get_status_field(p, "\nCapEff:", capeff);
+ r = get_proc_field(p, "CapEff", WHITESPACE, capeff);
+ if (r == -ENOENT)
+ return -ESRCH;
+
+ return r;
}
static int get_process_link_contents(const char *proc_file, char **name) {
assert(name);
r = readlink_malloc(proc_file, name);
+ if (r == -ENOENT)
+ return -ESRCH;
if (r < 0)
- return r == -ENOENT ? -ESRCH : r;
+ return r;
return 0;
}
p = procfs_file_alloca(pid, "status");
f = fopen(p, "re");
- if (!f)
+ if (!f) {
+ if (errno == ENOENT)
+ return -ESRCH;
return -errno;
+ }
FOREACH_LINE(line, f, return -errno) {
char *l;
p = procfs_file_alloca(pid, "environ");
f = fopen(p, "re");
- if (!f)
+ if (!f) {
+ if (errno == ENOENT)
+ return -ESRCH;
return -errno;
+ }
while ((c = fgetc(f)) != EOF) {
if (!GREEDY_REALLOC(outcome, allocated, sz + 5))
sz += cescape_char(c, outcome + sz);
}
- outcome[sz] = '\0';
+ if (!outcome) {
+ outcome = strdup("");
+ if (!outcome)
+ return -ENOMEM;
+ } else
+ outcome[sz] = '\0';
+
*env = outcome;
outcome = NULL;
p = procfs_file_alloca(pid, "stat");
r = read_one_line_file(p, &line);
+ if (r == -ENOENT)
+ return -ESRCH;
if (r < 0)
return r;
return -EPROTO;
}
+void sigkill_wait(pid_t *pid) {
+ if (!pid)
+ return;
+ if (*pid <= 1)
+ return;
+
+ if (kill(*pid, SIGKILL) > 0)
+ (void) wait_for_terminate(*pid, NULL);
+}
+
int kill_and_sigcont(pid_t pid, int sig) {
int r;
path = procfs_file_alloca(pid, "environ");
f = fopen(path, "re");
- if (!f)
+ if (!f) {
+ if (errno == ENOENT)
+ return -ESRCH;
return -errno;
+ }
l = strlen(field);
r = 0;
return false;
r = get_process_state(pid);
- if (r == -ENOENT || r == 'Z')
+ if (r == -ESRCH || r == 'Z')
return false;
return true;