#include <sys/mman.h>
#include <sys/vfs.h>
#include <linux/magic.h>
+#include <limits.h>
#include "macro.h"
#include "util.h"
int saved_argc = 0;
char **saved_argv = NULL;
+static volatile unsigned cached_columns = 0;
+
size_t page_size(void) {
static __thread size_t pgsz = 0;
long r;
usec_t timespec_load(const struct timespec *ts) {
assert(ts);
+ if (ts->tv_sec == (time_t) -1 &&
+ ts->tv_nsec == (long) -1)
+ return (usec_t) -1;
+
return
(usec_t) ts->tv_sec * USEC_PER_SEC +
(usec_t) ts->tv_nsec / NSEC_PER_USEC;
struct timespec *timespec_store(struct timespec *ts, usec_t u) {
assert(ts);
+ if (u == (usec_t) -1) {
+ ts->tv_sec = (time_t) -1;
+ ts->tv_nsec = (long) -1;
+ return ts;
+ }
+
ts->tv_sec = (time_t) (u / USEC_PER_SEC);
ts->tv_nsec = (long int) ((u % USEC_PER_SEC) * NSEC_PER_USEC);
usec_t timeval_load(const struct timeval *tv) {
assert(tv);
+ if (tv->tv_sec == (time_t) -1 &&
+ tv->tv_usec == (suseconds_t) -1)
+ return (usec_t) -1;
+
return
(usec_t) tv->tv_sec * USEC_PER_SEC +
(usec_t) tv->tv_usec;
struct timeval *timeval_store(struct timeval *tv, usec_t u) {
assert(tv);
+ if (u == (usec_t) -1) {
+ tv->tv_sec = (time_t) -1;
+ tv->tv_usec = (suseconds_t) -1;
+ return tv;
+ }
+
tv->tv_sec = (time_t) (u / USEC_PER_SEC);
tv->tv_usec = (suseconds_t) (u % USEC_PER_SEC);
return r;
}
-int get_process_uid(pid_t pid, uid_t *uid) {
+static int get_process_id(pid_t pid, const char *field, uid_t *uid) {
char *p;
FILE *f;
int r;
l = strstrip(line);
- if (startswith(l, "Uid:")) {
- l += 4;
+ if (startswith(l, field)) {
+ l += strlen(field);
l += strspn(l, WHITESPACE);
l[strcspn(l, WHITESPACE)] = 0;
return r;
}
+int get_process_uid(pid_t pid, uid_t *uid) {
+ return get_process_id(pid, "Uid:", uid);
+}
+
+int get_process_gid(pid_t pid, gid_t *gid) {
+ return get_process_id(pid, "Gid:", gid);
+}
+
char *strnappend(const char *s, const char *suffix, size_t b) {
size_t a;
char *r;
assert(suffix);
a = strlen(s);
+ if (b > ((size_t) -1) - a)
+ return NULL;
- if (!(r = new(char, a+b+1)))
+ r = new(char, a+b+1);
+ if (!r)
return NULL;
memcpy(r, s, a);
* chars, in \xFF style escaping. May be reversed with
* cunescape. */
- if (!(r = new(char, strlen(s)*4+1)))
+ r = new(char, strlen(s) * 4 + 1);
+ if (!r)
return NULL;
for (f = s, t = r; *f; f++) {
sec = (time_t) (t / USEC_PER_SEC);
- if (strftime(buf, l, "%a, %d %b %Y %H:%M:%S %z", localtime_r(&sec, &tm)) <= 0)
+ if (strftime(buf, l, "%a, %Y-%m-%d %H:%M:%S %Z", localtime_r(&sec, &tm)) <= 0)
return NULL;
return buf;
}
int ask(char *ret, const char *replies, const char *text, ...) {
- bool on_tty;
assert(ret);
assert(replies);
assert(text);
- on_tty = isatty(STDOUT_FILENO);
-
for (;;) {
va_list ap;
char c;
int r;
bool need_nl = true;
- if (on_tty)
+ if (on_tty())
fputs(ANSI_HIGHLIGHT_ON, stdout);
va_start(ap, text);
vprintf(text, ap);
va_end(ap);
- if (on_tty)
+ if (on_tty())
fputs(ANSI_HIGHLIGHT_OFF, stdout);
fflush(stdout);
const char *suffix;
usec_t usec;
} table[] = {
+ { "seconds", USEC_PER_SEC },
+ { "second", USEC_PER_SEC },
{ "sec", USEC_PER_SEC },
{ "s", USEC_PER_SEC },
+ { "minutes", USEC_PER_MINUTE },
+ { "minute", USEC_PER_MINUTE },
{ "min", USEC_PER_MINUTE },
+ { "months", USEC_PER_MONTH },
+ { "month", USEC_PER_MONTH },
+ { "msec", USEC_PER_MSEC },
+ { "ms", USEC_PER_MSEC },
+ { "m", USEC_PER_MINUTE },
+ { "hours", USEC_PER_HOUR },
+ { "hour", USEC_PER_HOUR },
{ "hr", USEC_PER_HOUR },
{ "h", USEC_PER_HOUR },
+ { "days", USEC_PER_DAY },
+ { "day", USEC_PER_DAY },
{ "d", USEC_PER_DAY },
+ { "weeks", USEC_PER_WEEK },
+ { "week", USEC_PER_WEEK },
{ "w", USEC_PER_WEEK },
- { "msec", USEC_PER_MSEC },
- { "ms", USEC_PER_MSEC },
- { "m", USEC_PER_MINUTE },
+ { "years", USEC_PER_YEAR },
+ { "year", USEC_PER_YEAR },
+ { "y", USEC_PER_YEAR },
{ "usec", 1ULL },
{ "us", 1ULL },
{ "", USEC_PER_SEC }, /* default is sec */
const char *suffix;
nsec_t nsec;
} table[] = {
+ { "seconds", NSEC_PER_SEC },
+ { "second", NSEC_PER_SEC },
{ "sec", NSEC_PER_SEC },
{ "s", NSEC_PER_SEC },
+ { "minutes", NSEC_PER_MINUTE },
+ { "minute", NSEC_PER_MINUTE },
{ "min", NSEC_PER_MINUTE },
+ { "months", NSEC_PER_MONTH },
+ { "month", NSEC_PER_MONTH },
+ { "msec", NSEC_PER_MSEC },
+ { "ms", NSEC_PER_MSEC },
+ { "m", NSEC_PER_MINUTE },
+ { "hours", NSEC_PER_HOUR },
+ { "hour", NSEC_PER_HOUR },
{ "hr", NSEC_PER_HOUR },
{ "h", NSEC_PER_HOUR },
+ { "days", NSEC_PER_DAY },
+ { "day", NSEC_PER_DAY },
{ "d", NSEC_PER_DAY },
+ { "weeks", NSEC_PER_WEEK },
+ { "week", NSEC_PER_WEEK },
{ "w", NSEC_PER_WEEK },
- { "msec", NSEC_PER_MSEC },
- { "ms", NSEC_PER_MSEC },
- { "m", NSEC_PER_MINUTE },
+ { "years", NSEC_PER_YEAR },
+ { "year", NSEC_PER_YEAR },
+ { "y", NSEC_PER_YEAR },
{ "usec", NSEC_PER_USEC },
{ "us", NSEC_PER_USEC },
{ "nsec", 1ULL },
return -errno;
for (;;) {
- struct dirent buf, *de;
+ struct dirent *de;
+ union dirent_storage buf;
- r = readdir_r(d, &buf, &de);
+ r = readdir_r(d, &buf.de, &de);
if (r > 0)
return -r;
}
for (;;) {
- struct dirent buf, *de;
+ struct dirent *de;
+ union dirent_storage buf;
bool is_dir, keep_around;
struct stat st;
int r;
- r = readdir_r(d, &buf, &de);
+ r = readdir_r(d, &buf.de, &de);
if (r != 0 && ret == 0) {
ret = -r;
break;
}
}
-void status_vprintf(const char *status, bool ellipse, const char *format, va_list ap) {
- char *s = NULL;
+int status_vprintf(const char *status, bool ellipse, const char *format, va_list ap) {
static const char status_indent[] = " "; /* "[" STATUS "] " */
- int fd = -1;
+ _cleanup_free_ char *s = NULL;
+ _cleanup_close_ int fd = -1;
struct iovec iovec[5];
int n = 0;
* optional and go exclusively to the console. */
if (vasprintf(&s, format, ap) < 0)
- goto finish;
+ return log_oom();
fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC);
if (fd < 0)
- goto finish;
+ return fd;
if (ellipse) {
char *e;
if (c <= 0)
c = 80;
- sl = status ? strlen(status_indent) : 0;
+ sl = status ? sizeof(status_indent)-1 : 0;
emax = c - sl - 1;
if (emax < 3)
IOVEC_SET_STRING(iovec[n++], s);
IOVEC_SET_STRING(iovec[n++], "\n");
- writev(fd, iovec, n);
-
-finish:
- free(s);
+ if (writev(fd, iovec, n) < 0)
+ return -errno;
- if (fd >= 0)
- close_nointr_nofail(fd);
+ return 0;
}
-void status_printf(const char *status, bool ellipse, const char *format, ...) {
+int status_printf(const char *status, bool ellipse, const char *format, ...) {
va_list ap;
+ int r;
assert(format);
va_start(ap, format);
- status_vprintf(status, ellipse, format, ap);
+ r = status_vprintf(status, ellipse, format, ap);
va_end(ap);
+
+ return r;
}
-void status_welcome(void) {
- char *pretty_name = NULL, *ansi_color = NULL;
- const char *const_pretty = NULL, *const_color = NULL;
+int status_welcome(void) {
int r;
+ _cleanup_free_ char *pretty_name = NULL, *ansi_color = NULL;
- if ((r = parse_env_file("/etc/os-release", NEWLINE,
- "PRETTY_NAME", &pretty_name,
- "ANSI_COLOR", &ansi_color,
- NULL)) < 0) {
-
- if (r != -ENOENT)
- log_warning("Failed to read /etc/os-release: %s", strerror(-r));
- }
-
- if (!pretty_name && !const_pretty)
- const_pretty = "Linux";
-
- if (!ansi_color && !const_color)
- const_color = "1";
-
- status_printf(NULL,
- false,
- "\nWelcome to \x1B[%sm%s\x1B[0m!\n",
- const_color ? const_color : ansi_color,
- const_pretty ? const_pretty : pretty_name);
+ r = parse_env_file("/etc/os-release", NEWLINE,
+ "PRETTY_NAME", &pretty_name,
+ "ANSI_COLOR", &ansi_color,
+ NULL);
+ if (r < 0 && r != -ENOENT)
+ log_warning("Failed to read /etc/os-release: %s", strerror(-r));
- free(ansi_color);
- free(pretty_name);
+ return status_printf(NULL, false,
+ "\nWelcome to \x1B[%sm%s\x1B[0m!\n",
+ isempty(ansi_color) ? "1" : ansi_color,
+ isempty(pretty_name) ? "Linux" : pretty_name);
}
char *replace_env(const char *format, char **env) {
return ws.ws_col;
}
-static unsigned columns_cached(bool cached) {
- static __thread int parsed_columns = 0, env_columns = -1;
+unsigned columns(void) {
const char *e;
+ unsigned c;
- if (_likely_(parsed_columns > 0 && cached))
- return parsed_columns;
+ if (_likely_(cached_columns > 0))
+ return cached_columns;
- if (_unlikely_(env_columns == -1)) {
- e = getenv("COLUMNS");
- if (e)
- env_columns = atoi(e);
- else
- env_columns = 0;
- }
-
- if (env_columns > 0) {
- parsed_columns = env_columns;
- return parsed_columns;
- }
+ c = 0;
+ e = getenv("COLUMNS");
+ if (e)
+ safe_atou(e, &c);
- if (parsed_columns <= 0 || !cached)
- parsed_columns = fd_columns(STDOUT_FILENO);
+ if (c <= 0)
+ c = fd_columns(STDOUT_FILENO);
- if (parsed_columns <= 0)
- parsed_columns = 80;
+ if (c <= 0)
+ c = 80;
- return parsed_columns;
+ cached_columns = c;
+ return c;
}
-unsigned columns(void) {
- return columns_cached(true);
+/* intended to be used as a SIGWINCH sighandler */
+void columns_cache_reset(int signum) {
+ cached_columns = 0;
}
-unsigned columns_uncached(void) {
- return columns_cached(false);
+bool on_tty(void) {
+ static int cached_on_tty = -1;
+
+ if (_unlikely_(cached_on_tty < 0))
+ cached_on_tty = isatty(STDOUT_FILENO) > 0;
+
+ return cached_on_tty;
}
int fd_lines(int fd) {
/* This is rather stupid, simply removes the heading and
* trailing quotes if there is one. Doesn't care about
- * escaping or anything. */
+ * escaping or anything. We should make this smarter one
+ * day...*/
l = strlen(s);
if (l < 2)
}
char *normalize_env_assignment(const char *s) {
- char *name, *value, *p, *r;
+ _cleanup_free_ char *name = NULL, *value = NULL, *p = NULL;
+ char *eq, *r;
- p = strchr(s, '=');
+ eq = strchr(s, '=');
+ if (!eq) {
+ char *t;
- if (!p) {
- if (!(r = strdup(s)))
+ r = strdup(s);
+ if (!r)
return NULL;
- return strstrip(r);
+ t = strstrip(r);
+ if (t == r)
+ return r;
+
+ memmove(r, t, strlen(t) + 1);
+ return r;
}
- if (!(name = strndup(s, p - s)))
+ name = strndup(s, eq - s);
+ if (!name)
return NULL;
- if (!(p = strdup(p+1))) {
- free(name);
+ p = strdup(eq + 1);
+ if (!p)
return NULL;
- }
value = unquote(strstrip(p), QUOTES);
- free(p);
-
- if (!value) {
- free(name);
+ if (!value)
return NULL;
- }
- if (asprintf(&r, "%s=%s", name, value) < 0)
+ if (asprintf(&r, "%s=%s", strstrip(name), value) < 0)
r = NULL;
- free(value);
- free(name);
-
return r;
}
}
char *fstab_node_to_udev_node(const char *p) {
+ assert(p);
+
if (startswith(p, "LABEL="))
return tag_to_udev_node(p+6, "label");
return 0;
}
-int symlink_or_copy(const char *from, const char *to) {
- char *pf = NULL, *pt = NULL;
- struct stat a, b;
- int r;
-
- assert(from);
- assert(to);
-
- if (path_get_parent(from, &pf) < 0 ||
- path_get_parent(to, &pt) < 0) {
- r = -ENOMEM;
- goto finish;
- }
-
- if (stat(pf, &a) < 0 ||
- stat(pt, &b) < 0) {
- r = -errno;
- goto finish;
- }
-
- if (a.st_dev != b.st_dev) {
- free(pf);
- free(pt);
-
- return copy_file(from, to);
- }
-
- if (symlink(from, to) < 0) {
- r = -errno;
- goto finish;
- }
-
- r = 0;
-
-finish:
- free(pf);
- free(pt);
-
- return r;
-}
-
-int symlink_or_copy_atomic(const char *from, const char *to) {
- char *t, *x;
+int symlink_atomic(const char *from, const char *to) {
+ char *x;
+ _cleanup_free_ char *t;
const char *fn;
size_t k;
unsigned long long ull;
*x = 0;
- r = symlink_or_copy(from, t);
- if (r < 0) {
- unlink(t);
- free(t);
- return r;
- }
+ if (symlink(from, t) < 0)
+ return -errno;
if (rename(t, to) < 0) {
r = -errno;
unlink(t);
- free(t);
return r;
}
- free(t);
- return r;
+ return 0;
}
bool display_is_local(const char *display) {
return -errno;
for (;;) {
- struct dirent buffer, *de;
+ struct dirent *de;
+ union dirent_storage buf;
int k;
- k = readdir_r(d, &buffer, &de);
+ k = readdir_r(d, &buf.de, &de);
if (k != 0) {
r = -k;
goto finish;
for (;;) {
const char *t;
+ size_t n;
t = va_arg(ap, const char *);
if (!t)
break;
- l += strlen(t);
+ n = strlen(t);
+ if (n > ((size_t) -1) - l) {
+ va_end(ap);
+ return NULL;
+ }
+
+ l += n;
}
} else
l = 0;
int offset = 0;
unsigned u;
- signo =__signal_from_string(s);
+ signo = __signal_from_string(s);
if (signo > 0)
return signo;
if (fd < 0)
return;
- /* Yeah, this is synchronous. Kinda sucks. Bute well... */
+ /* Yeah, this is synchronous. Kinda sucks. But well... */
ioctl(fd, KIOCSOUND, (int)(1193180/440));
usleep(125*USEC_PER_MSEC);
if (*d)
closedir(*d);
}
+
+void umaskp(mode_t *u) {
+ umask(*u);
+}
+
+bool filename_is_safe(const char *p) {
+
+ if (isempty(p))
+ return false;
+
+ if (strchr(p, '/'))
+ return false;
+
+ if (streq(p, "."))
+ return false;
+
+ if (streq(p, ".."))
+ return false;
+
+ if (strlen(p) > FILENAME_MAX)
+ return false;
+
+ return true;
+}
+
+bool string_is_safe(const char *p) {
+ const char *t;
+
+ assert(p);
+
+ for (t = p; *t; t++) {
+ if (*t > 0 && *t < ' ')
+ return false;
+
+ if (strchr("\\\"\'", *t))
+ return false;
+ }
+
+ return true;
+}
+
+int parse_timestamp(const char *t, usec_t *usec) {
+ const char *k;
+ struct tm tm, copy;
+ time_t x;
+ usec_t plus = 0, minus = 0, ret;
+ int r;
+
+ /*
+ * Allowed syntaxes:
+ *
+ * 2012-09-22 16:34:22
+ * 2012-09-22 16:34 (seconds will be set to 0)
+ * 2012-09-22 (time will be set to 00:00:00)
+ * 16:34:22 (date will be set to today)
+ * 16:34 (date will be set to today, seconds to 0)
+ * now
+ * yesterday (time is set to 00:00:00)
+ * today (time is set to 00:00:00)
+ * tomorrow (time is set to 00:00:00)
+ * +5min
+ * -5days
+ *
+ */
+
+ assert(t);
+ assert(usec);
+
+ x = time(NULL);
+ assert_se(localtime_r(&x, &tm));
+
+ if (streq(t, "now"))
+ goto finish;
+
+ else if (streq(t, "today")) {
+ tm.tm_sec = tm.tm_min = tm.tm_hour = 0;
+ goto finish;
+
+ } else if (streq(t, "yesterday")) {
+ tm.tm_mday --;
+ tm.tm_sec = tm.tm_min = tm.tm_hour = 0;
+ goto finish;
+
+ } else if (streq(t, "tomorrow")) {
+ tm.tm_mday ++;
+ tm.tm_sec = tm.tm_min = tm.tm_hour = 0;
+ goto finish;
+
+ } else if (t[0] == '+') {
+
+ r = parse_usec(t+1, &plus);
+ if (r < 0)
+ return r;
+
+ goto finish;
+ } else if (t[0] == '-') {
+
+ r = parse_usec(t+1, &minus);
+ if (r < 0)
+ return r;
+
+ goto finish;
+ }
+
+ copy = tm;
+ k = strptime(t, "%y-%m-%d %H:%M:%S", &tm);
+ if (k && *k == 0)
+ goto finish;
+
+ tm = copy;
+ k = strptime(t, "%Y-%m-%d %H:%M:%S", &tm);
+ if (k && *k == 0)
+ goto finish;
+
+ tm = copy;
+ k = strptime(t, "%y-%m-%d %H:%M", &tm);
+ if (k && *k == 0) {
+ tm.tm_sec = 0;
+ goto finish;
+ }
+
+ tm = copy;
+ k = strptime(t, "%Y-%m-%d %H:%M", &tm);
+ if (k && *k == 0) {
+ tm.tm_sec = 0;
+ goto finish;
+ }
+
+ tm = copy;
+ k = strptime(t, "%y-%m-%d", &tm);
+ if (k && *k == 0) {
+ tm.tm_sec = tm.tm_min = tm.tm_hour = 0;
+ goto finish;
+ }
+
+ tm = copy;
+ k = strptime(t, "%Y-%m-%d", &tm);
+ if (k && *k == 0) {
+ tm.tm_sec = tm.tm_min = tm.tm_hour = 0;
+ goto finish;
+ }
+
+ tm = copy;
+ k = strptime(t, "%H:%M:%S", &tm);
+ if (k && *k == 0)
+ goto finish;
+
+ tm = copy;
+ k = strptime(t, "%H:%M", &tm);
+ if (k && *k == 0) {
+ tm.tm_sec = 0;
+ goto finish;
+ }
+
+ return -EINVAL;
+
+finish:
+ x = mktime(&tm);
+ if (x == (time_t) -1)
+ return -EINVAL;
+
+ ret = (usec_t) x * USEC_PER_SEC;
+
+ ret += plus;
+ if (ret > minus)
+ ret -= minus;
+ else
+ ret = 0;
+
+ *usec = ret;
+
+ return 0;
+}
~ianmdlvl / elogind.git / blobdiff