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Author SHA1 Message Date
Pjotr Vertaalt
91a96a564f po: Translated using Weblate (Dutch)
Currently translated at 100.0% (189 of 189 strings)

Co-authored-by: Pjotr Vertaalt <pjotrvertaalt@gmail.com>
Translate-URL: https://translate.fedoraproject.org/projects/systemd/master/nl/
Translation: systemd/main
2021-03-24 18:26:52 +09:00
Anita Zhang
7b7a060e83 process-util: dont allocate max length to read /proc/PID/cmdline
Alternative title: Replace get_process_cmdline()'s fopen()/fread() with
read_full_virtual_file().

When RLIMIT_STACK is set to infinity:infinity, _SC_ARG_MAX will
return 4611686018427387903 (depending on the system, but definitely
something larger than most systems have). It's impractical to allocate this
in one go when most cmdlines are much shorter than that.

Instead use read_full_virtual_file() which seems to increase the buffer
depending on the size of the contents.
2021-03-24 16:46:45 +09:00
Lincoln Ramsay
7325a2b2d1
pid1: do not use generated strings as format strings (#19098)
The generated string may include %, which will confuse both the
xprintf call, and the VA_FORMAT_ADVANCE macro.

Pass the generated string as an argument to a "%s" format string
instead.
2021-03-24 16:37:25 +09:00
4 changed files with 280 additions and 131 deletions

372
po/nl.po

File diff suppressed because it is too large Load Diff

View File

@ -124,14 +124,10 @@ int get_process_comm(pid_t pid, char **ret) {
}
int get_process_cmdline(pid_t pid, size_t max_columns, ProcessCmdlineFlags flags, char **line) {
_cleanup_fclose_ FILE *f = NULL;
_cleanup_free_ char *t = NULL, *ans = NULL;
const char *p;
int r;
size_t k;
/* This is supposed to be a safety guard against runaway command lines. */
size_t max_length = sc_arg_max();
int r;
assert(line);
assert(pid >= 0);
@ -147,36 +143,18 @@ int get_process_cmdline(pid_t pid, size_t max_columns, ProcessCmdlineFlags flags
* comm_fallback is false). Returns 0 and sets *line otherwise. */
p = procfs_file_alloca(pid, "cmdline");
r = fopen_unlocked(p, "re", &f);
r = read_full_virtual_file(p, &t, &k);
if (r == -ENOENT)
return -ESRCH;
if (r < 0)
return r;
/* We assume that each four-byte character uses one or two columns. If we ever check for combining
* characters, this assumption will need to be adjusted. */
if ((size_t) 4 * max_columns + 1 < max_columns)
max_length = MIN(max_length, (size_t) 4 * max_columns + 1);
t = new(char, max_length);
if (!t)
return -ENOMEM;
k = fread(t, 1, max_length, f);
if (k > 0) {
/* Arguments are separated by NULs. Let's replace those with spaces. */
for (size_t i = 0; i < k - 1; i++)
if (t[i] == '\0')
t[i] = ' ';
t[k] = '\0'; /* Normally, t[k] is already NUL, so this is just a guard in case of short read */
} else {
/* We only treat getting nothing as an error. We *could* also get an error after reading some
* data, but we ignore that case, as such an error is rather unlikely and we prefer to get
* some data rather than none. */
if (ferror(f))
return -errno;
if (!(flags & PROCESS_CMDLINE_COMM_FALLBACK))
return -ENOENT;
@ -187,7 +165,7 @@ int get_process_cmdline(pid_t pid, size_t max_columns, ProcessCmdlineFlags flags
if (r < 0)
return r;
mfree(t);
free(t);
t = strjoin("[", t2, "]");
if (!t)
return -ENOMEM;

View File

@ -405,7 +405,7 @@ static int transaction_verify_order_one(Transaction *tr, Job *j, Job *from, unsi
j->unit->id,
unit_id == array ? "ordering cycle" : "dependency",
*unit_id, *job_type,
unit_ids);
"%s", unit_ids);
if (delete) {
const char *status;
@ -414,7 +414,7 @@ static int transaction_verify_order_one(Transaction *tr, Job *j, Job *from, unsi
"MESSAGE=%s: Job %s/%s deleted to break ordering cycle starting with %s/%s",
j->unit->id, delete->unit->id, job_type_to_string(delete->type),
j->unit->id, job_type_to_string(j->type),
unit_ids);
"%s", unit_ids);
if (log_get_show_color())
status = ANSI_HIGHLIGHT_RED " SKIP " ANSI_NORMAL;
@ -432,7 +432,7 @@ static int transaction_verify_order_one(Transaction *tr, Job *j, Job *from, unsi
log_struct(LOG_ERR,
"MESSAGE=%s: Unable to break cycle starting with %s/%s",
j->unit->id, j->unit->id, job_type_to_string(j->type),
unit_ids);
"%s", unit_ids);
return sd_bus_error_setf(e, BUS_ERROR_TRANSACTION_ORDER_IS_CYCLIC,
"Transaction order is cyclic. See system logs for details.");

View File

@ -236,6 +236,11 @@ static void test_get_process_cmdline_harder(void) {
return;
}
/* Set RLIMIT_STACK to infinity to test we don't try to allocate unncessarily large values to read
* the cmdline. */
if (setrlimit(RLIMIT_STACK, &RLIMIT_MAKE_CONST(RLIM_INFINITY)) < 0)
log_warning("Testing without RLIMIT_STACK=infinity");
assert_se(unlink(path) >= 0);
assert_se(prctl(PR_SET_NAME, "testa") >= 0);