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libbb: add strncpy_IFNAMSIZ

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function                                             old     new   delta
...
udhcp_read_interface                                 225     220      -5
brctl_main                                          1151    1146      -5
add_interface                                        109     104      -5
ipaddr_list_or_flush                                2174    2167      -7
do_add_ioctl                                          88      80      -8
vconfig_main                                         249     240      -9
do_del_ioctl                                          78      68     -10
do_iplink                                           1186    1173     -13
do_if_fetch                                          766     753     -13
buffer_fill_and_print                                196     179     -17
parse_args                                          1709    1684     -25
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/20 up/down: 11/-140)         Total: -129 bytes
This commit is contained in:
Denis Vlasenko
2008-12-02 18:18:50 +00:00
parent 928b2c0fee
commit 360d9661b6
19 changed files with 52 additions and 49 deletions
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8
libbb/xfuncs.c
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@@ -40,6 +40,14 @@ int FAST_FUNC close_on_exec_on(int fd)
return fcntl(fd, F_SETFD, FD_CLOEXEC);
}
char* FAST_FUNC strncpy_IFNAMSIZ(char *dst, const char *src)
{
#ifndef IFNAMSIZ
enum { IFNAMSIZ = 16 };
#endif
return strncpy(dst, src, IFNAMSIZ);
}
/* Convert unsigned long long value into compact 4-char
* representation. Examples: "1234", "1.2k", " 27M", "123T"
* String is not terminated (buf[4] is untouched) */