#include <errno.h>
#include <stdio.h>
-#include <stdio_ext.h>
#include <sys/prctl.h>
#include <sys/xattr.h>
#include <unistd.h>
#include "log.h"
#include "macro.h"
#include "main-func.h"
+#include "memory-util.h"
#include "missing.h"
#include "mkdir.h"
#include "parse-util.h"
#include "strv.h"
#include "tmpfile-util.h"
#include "user-util.h"
-#include "util.h"
/* The maximum size up to which we process coredumps */
#define PROCESS_SIZE_MAX ((uint64_t) (2LLU*1024LLU*1024LLU*1024LLU))
CONFIG_PARSE_WARN, NULL);
}
-static inline uint64_t storage_size_max(void) {
+static uint64_t storage_size_max(void) {
if (arg_storage == COREDUMP_STORAGE_EXTERNAL)
return arg_external_size_max;
if (arg_storage == COREDUMP_STORAGE_JOURNAL)
#define filename_escape(s) xescape((s), "./ ")
-static inline const char *coredump_tmpfile_name(const char *s) {
+static const char *coredump_tmpfile_name(const char *s) {
return s ? s : "(unnamed temporary file)";
}
if (r < 0)
return log_error_errno(r, "Failed to determine coredump file name: %m");
- mkdir_p_label("/var/lib/systemd/coredump", 0755);
+ (void) mkdir_p_label("/var/lib/systemd/coredump", 0755);
fd = open_tmpfile_linkable(fn, O_RDWR|O_CLOEXEC, &tmp);
if (fd < 0)
if (proc_fdinfo_fd < 0)
return -errno;
- stream = open_memstream(&buffer, &size);
+ stream = open_memstream_unlocked(&buffer, &size);
if (!stream)
return -ENOMEM;
- (void) __fsetlocking(stream, FSETLOCKING_BYCALLER);
-
FOREACH_DIRENT(dent, proc_fd_dir, return -errno) {
_cleanup_fclose_ FILE *fdinfo = NULL;
_cleanup_free_ char *fdname = NULL;
if (fd < 0)
continue;
- fdinfo = fdopen(fd, "re");
+ fdinfo = fdopen(fd, "r");
if (!fdinfo) {
safe_close(fd);
continue;
if (r < 0)
return r;
- r = get_process_cmdline(container_pid, 0, false, cmdline);
+ r = get_process_cmdline(container_pid, SIZE_MAX, 0, cmdline);
if (r < 0)
return r;
return log_error_errno(r, "Failed to drop privileges: %m");
#if HAVE_ELFUTILS
- /* Try to get a strack trace if we can */
+ /* Try to get a stack trace if we can */
if (coredump_size <= arg_process_size_max) {
_cleanup_free_ char *stacktrace = NULL;
core_message = strjoin("MESSAGE=Process ", context[CONTEXT_PID],
" (", context[CONTEXT_COMM], ") of user ",
context[CONTEXT_UID], " dumped core.",
- journald_crash ? "\nCoredump diverted to " : NULL,
- journald_crash ? filename : NULL);
+ journald_crash && filename ? "\nCoredump diverted to " : NULL,
+ journald_crash && filename ? filename : NULL);
if (!core_message)
return log_oom();
if (journald_crash) {
- /* We cannot log to the journal, so just print the MESSAGE.
+ /* We cannot log to the journal, so just print the message.
* The target was set previously to something safe. */
- log_dispatch(LOG_ERR, 0, core_message);
+ assert(startswith(core_message, "MESSAGE="));
+ log_dispatch(LOG_ERR, 0, core_message + strlen("MESSAGE="));
return 0;
}
* (truncated) copy of what we want to send, and the second one
* contains the trailing dots. */
copy[0] = iovec[i];
- copy[1] = (struct iovec) {
- .iov_base = (char[]) { '.', '.', '.' },
- .iov_len = 3,
- };
+ copy[1] = IOVEC_MAKE(((char[]){'.', '.', '.'}), 3);
mh.msg_iov = copy;
mh.msg_iovlen = 2;
return 0;
}
-static char* set_iovec_field(struct iovec *iovec, size_t *n_iovec, const char *field, const char *value) {
- char *x;
-
- x = strappend(field, value);
- if (x)
- iovec[(*n_iovec)++] = IOVEC_MAKE_STRING(x);
- return x;
-}
-
static char* set_iovec_field_free(struct iovec *iovec, size_t *n_iovec, const char *field, char *value) {
char *x;
- x = set_iovec_field(iovec, n_iovec, field, value);
+ x = set_iovec_string_field(iovec, n_iovec, field, value);
free(value);
return x;
}
disable_coredumps();
}
- set_iovec_field(iovec, n_iovec, "COREDUMP_UNIT=", context[CONTEXT_UNIT]);
+ set_iovec_string_field(iovec, n_iovec, "COREDUMP_UNIT=", context[CONTEXT_UNIT]);
}
if (cg_pid_get_user_unit(pid, &t) >= 0)
set_iovec_field_free(iovec, n_iovec, "COREDUMP_USER_UNIT=", t);
/* The next few are mandatory */
- if (!set_iovec_field(iovec, n_iovec, "COREDUMP_PID=", context[CONTEXT_PID]))
+ if (!set_iovec_string_field(iovec, n_iovec, "COREDUMP_PID=", context[CONTEXT_PID]))
return log_oom();
- if (!set_iovec_field(iovec, n_iovec, "COREDUMP_UID=", context[CONTEXT_UID]))
+ if (!set_iovec_string_field(iovec, n_iovec, "COREDUMP_UID=", context[CONTEXT_UID]))
return log_oom();
- if (!set_iovec_field(iovec, n_iovec, "COREDUMP_GID=", context[CONTEXT_GID]))
+ if (!set_iovec_string_field(iovec, n_iovec, "COREDUMP_GID=", context[CONTEXT_GID]))
return log_oom();
- if (!set_iovec_field(iovec, n_iovec, "COREDUMP_SIGNAL=", context[CONTEXT_SIGNAL]))
+ if (!set_iovec_string_field(iovec, n_iovec, "COREDUMP_SIGNAL=", context[CONTEXT_SIGNAL]))
return log_oom();
- if (!set_iovec_field(iovec, n_iovec, "COREDUMP_RLIMIT=", context[CONTEXT_RLIMIT]))
+ if (!set_iovec_string_field(iovec, n_iovec, "COREDUMP_RLIMIT=", context[CONTEXT_RLIMIT]))
return log_oom();
- if (!set_iovec_field(iovec, n_iovec, "COREDUMP_HOSTNAME=", context[CONTEXT_HOSTNAME]))
+ if (!set_iovec_string_field(iovec, n_iovec, "COREDUMP_HOSTNAME=", context[CONTEXT_HOSTNAME]))
return log_oom();
- if (!set_iovec_field(iovec, n_iovec, "COREDUMP_COMM=", context[CONTEXT_COMM]))
+ if (!set_iovec_string_field(iovec, n_iovec, "COREDUMP_COMM=", context[CONTEXT_COMM]))
return log_oom();
if (context[CONTEXT_EXE] &&
- !set_iovec_field(iovec, n_iovec, "COREDUMP_EXE=", context[CONTEXT_EXE]))
+ !set_iovec_string_field(iovec, n_iovec, "COREDUMP_EXE=", context[CONTEXT_EXE]))
return log_oom();
if (sd_pid_get_session(pid, &t) >= 0)
if (sd_pid_get_slice(pid, &t) >= 0)
set_iovec_field_free(iovec, n_iovec, "COREDUMP_SLICE=", t);
- if (get_process_cmdline(pid, 0, false, &t) >= 0)
+ if (get_process_cmdline(pid, SIZE_MAX, 0, &t) >= 0)
set_iovec_field_free(iovec, n_iovec, "COREDUMP_CMDLINE=", t);
if (cg_pid_get_path_shifted(pid, NULL, &t) >= 0)
iovec[(*n_iovec)++] = IOVEC_MAKE_STRING(t);
if (safe_atoi(context[CONTEXT_SIGNAL], &signo) >= 0 && SIGNAL_VALID(signo))
- set_iovec_field(iovec, n_iovec, "COREDUMP_SIGNAL_NAME=SIG", signal_to_string(signo));
+ set_iovec_string_field(iovec, n_iovec, "COREDUMP_SIGNAL_NAME=SIG", signal_to_string(signo));
return 0; /* we successfully acquired all metadata */
}