diff options
Diffstat (limited to 'src/shared/util.h')
| -rw-r--r-- | src/shared/util.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/shared/util.h b/src/shared/util.h index cfb54939cd..6575f56811 100644 --- a/src/shared/util.h +++ b/src/shared/util.h @@ -21,6 +21,7 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>. ***/ +#include <alloca.h> #include <inttypes.h> #include <time.h> #include <sys/time.h> @@ -696,3 +697,12 @@ int unlink_noerrno(const char *path); strcpy(stpcpy(_c_, _a_), _b_); \ _c_; \ }) + +#define procfs_file_alloca(pid, field) \ + ({ \ + pid_t _pid_ = (pid); \ + char *_r_; \ + _r_ = alloca(sizeof("/proc/") -1 + DECIMAL_STR_MAX(pid_t) + 1 + sizeof(field)); \ + sprintf(_r_, "/proc/%lu/" field, (unsigned long) _pid_); \ + _r_; \ + }) |