diff options
| author | Dave Reisner <dreisner@archlinux.org> | 2014-03-11 10:41:22 -0400 |
|---|---|---|
| committer | Dave Reisner <dreisner@archlinux.org> | 2014-08-13 20:41:41 -0400 |
| commit | 8085f163c50d998f3e30a6ddfc72c73d5dc57747 (patch) | |
| tree | 36184a2129cd3ee2743b1815242ed7ab5c2ee0f7 /src/shared/util.h | |
| parent | d06441da04cd5102816858d8d1e4aa367c00156b (diff) | |
util: allow strappenda to take any number of args
This makes strappenda3 redundant, so we remove its usage and
definition. Add a few tests along the way for sanity.
Diffstat (limited to 'src/shared/util.h')
| -rw-r--r-- | src/shared/util.h | 36 |
1 files changed, 13 insertions, 23 deletions
diff --git a/src/shared/util.h b/src/shared/util.h index 8231cf27bc..101d2dfcf8 100644 --- a/src/shared/util.h +++ b/src/shared/util.h @@ -845,29 +845,19 @@ int unlink_noerrno(const char *path); (void *) memset(_new_, 0, _len_); \ }) -#define strappenda(a, b) \ - ({ \ - const char *_a_ = (a), *_b_ = (b); \ - char *_c_; \ - size_t _x_, _y_; \ - _x_ = strlen(_a_); \ - _y_ = strlen(_b_); \ - _c_ = alloca(_x_ + _y_ + 1); \ - strcpy(stpcpy(_c_, _a_), _b_); \ - _c_; \ - }) - -#define strappenda3(a, b, c) \ - ({ \ - const char *_a_ = (a), *_b_ = (b), *_c_ = (c); \ - char *_d_; \ - size_t _x_, _y_, _z_; \ - _x_ = strlen(_a_); \ - _y_ = strlen(_b_); \ - _z_ = strlen(_c_); \ - _d_ = alloca(_x_ + _y_ + _z_ + 1); \ - strcpy(stpcpy(stpcpy(_d_, _a_), _b_), _c_); \ - _d_; \ +#define strappenda(a, ...) \ + ({ \ + int _len = strlen(a); \ + unsigned _i; \ + char *_d_, *_p_; \ + const char *_appendees_[] = { __VA_ARGS__ }; \ + for (_i = 0; _i < ELEMENTSOF(_appendees_); _i++) \ + _len += strlen(_appendees_[_i]); \ + _d_ = alloca(_len + 1); \ + _p_ = stpcpy(_d_, a); \ + for (_i = 0; _i < ELEMENTSOF(_appendees_); _i++) \ + _p_ = stpcpy(_p_, _appendees_[_i]); \ + _d_; \ }) #define procfs_file_alloca(pid, field) \ |