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tar: conditionally don't wait for vforked child to exec, as it always

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works right on Linux, and anyway mayresult only on less-than-clear error
message only, it will not cause tar to misbehave.

function                                             old     new   delta
open_transformer                                      98      80     -18
writeTarFile                                         714     547    -167
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-185)           Total: -185 bytes
   text    data     bss     dec     hex filename
 770651    1051   10764  782466   bf082 busybox_old
 770463    1051   10764  782278   befc6 busybox_unstripped
This commit is contained in:
Denis Vlasenko
2007-09-04 19:33:22 +00:00
parent f0000653e9
commit 7e0fbf9c26
3 changed files with 54 additions and 37 deletions
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3
include/libbb.h
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@@ -512,6 +512,9 @@ int execable_file(const char *name);
char *find_execable(const char *filename);
int exists_execable(const char *filename);
/* BB_EXECxx always execs (it's not doing NOFORK/NOEXEC stuff),
* but it may exec busybox and call applet instead of searching PATH.
*/
#if ENABLE_FEATURE_PREFER_APPLETS
int bb_execvp(const char *file, char *const argv[]);
#define BB_EXECVP(prog,cmd) bb_execvp(prog,cmd)