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libbb: add bb_unsetenv (taken from hush).

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udhcpc: stop filtering environment passed to the script.
crond: fix uncovered potential bug (failing unsetenv)
mdev: fix uncovered potential bug (failing unsetenv)
tcp, udpsvd: fix uncovered potential bug (failing unsetenv)

function                                             old     new   delta
safe_setenv                                            -      58     +58
bb_unsetenv                                            -      55     +55
builtin_unset                                        139     138      -1
tcpudpsvd_main                                      1843    1830     -13
free_strings_and_unsetenv                             87      53     -34
udhcp_run_script                                    1186    1133     -53
safe_setenv4                                          62       -     -62
------------------------------------------------------------------------------
(add/remove: 2/1 grow/shrink: 0/4 up/down: 113/-163)          Total: -50 bytes
This commit is contained in:
Denis Vlasenko
2008-12-30 05:05:31 +00:00
parent d6e8f9450c
commit 76ddc2e3e4
7 changed files with 65 additions and 57 deletions
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1
include/libbb.h
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@@ -377,6 +377,7 @@ void xsetuid(uid_t uid) FAST_FUNC;
void xchdir(const char *path) FAST_FUNC;
void xchroot(const char *path) FAST_FUNC;
void xsetenv(const char *key, const char *value) FAST_FUNC;
void bb_unsetenv(const char *key) FAST_FUNC;
void xunlink(const char *pathname) FAST_FUNC;
void xstat(const char *pathname, struct stat *buf) FAST_FUNC;
int xopen(const char *pathname, int flags) FAST_FUNC FAST_FUNC;