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xargs: add support for -I and -i. Closes 493

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function                                             old     new   delta
process_stdin_with_replace                             -     195    +195
xmalloc_substitute_string                              -     145    +145
xargs_main                                           808     884     +76
count_strstr                                           -      45     +45
packed_usage                                       29580   29571      -9
parse_params                                        1445    1416     -29
func_exec                                            285     138    -147
------------------------------------------------------------------------------
(add/remove: 4/0 grow/shrink: 1/3 up/down: 461/-185)          Total: 276 bytes
   text	   data	    bss	    dec	    hex	filename
 922156	    932	  17692	 940780	  e5aec	busybox_old
 922440	    932	  17692	 941064	  e5c08	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2014-02-27 11:17:06 +01:00
parent 6885e49ba5
commit 6f068904dc
4 changed files with 176 additions and 56 deletions
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2
include/libbb.h
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@ -650,6 +650,8 @@ char *xstrndup(const char *s, int n) FAST_FUNC RETURNS_MALLOC;
void overlapping_strcpy(char *dst, const char *src) FAST_FUNC;
char *safe_strncpy(char *dst, const char *src, size_t size) FAST_FUNC;
char *strncpy_IFNAMSIZ(char *dst, const char *src) FAST_FUNC;
unsigned count_strstr(const char *str, const char *sub) FAST_FUNC;
char *xmalloc_substitute_string(const char *src, int count, const char *sub, const char *repl) FAST_FUNC;
/* Guaranteed to NOT be a macro (smallest code). Saves nearly 2k on uclibc.
* But potentially slow, don't use in one-billion-times loops */
int bb_putchar(int ch) FAST_FUNC;