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perf tools: Move strlcpy() from perf to tools/lib/string.c
strlcpy() will be needed by the subcmd library. Move it to the shared tools/lib/string.c file which can be used by other tools. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/71e2804b973bf39ad3d3b9be10f99f2ea630be46.1450193761.git.jpoimboe@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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@ -8,4 +8,8 @@ void *memdup(const void *src, size_t len);
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int strtobool(const char *s, bool *res);
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#ifndef __UCLIBC__
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extern size_t strlcpy(char *dest, const char *src, size_t size);
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#endif
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#endif /* _LINUX_STRING_H_ */
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@ -16,6 +16,7 @@
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#include <string.h>
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#include <errno.h>
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#include <linux/string.h>
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#include <linux/compiler.h>
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/**
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* memdup - duplicate region of memory
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@ -60,3 +61,29 @@ int strtobool(const char *s, bool *res)
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}
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return 0;
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}
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/**
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* strlcpy - Copy a C-string into a sized buffer
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* @dest: Where to copy the string to
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* @src: Where to copy the string from
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* @size: size of destination buffer
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*
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* Compatible with *BSD: the result is always a valid
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* NUL-terminated string that fits in the buffer (unless,
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* of course, the buffer size is zero). It does not pad
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* out the result like strncpy() does.
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*
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* If libc has strlcpy() then that version will override this
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* implementation:
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*/
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size_t __weak strlcpy(char *dest, const char *src, size_t size)
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{
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size_t ret = strlen(src);
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if (size) {
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size_t len = (ret >= size) ? size - 1 : ret;
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memcpy(dest, src, len);
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dest[len] = '\0';
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}
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return ret;
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}
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@ -8,6 +8,8 @@
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#include "../perf.h"
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#include "../ui/ui.h"
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#include <linux/string.h>
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#define CMD_EXEC_PATH "--exec-path"
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#define CMD_PERF_DIR "--perf-dir="
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#define CMD_WORK_TREE "--work-tree="
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@ -67,9 +69,4 @@ extern char *perf_path(const char *fmt, ...) __attribute__((format (printf, 1, 2
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extern char *perf_pathdup(const char *fmt, ...)
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__attribute__((format (printf, 1, 2)));
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#ifndef __UCLIBC__
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/* Matches the libc/libbsd function attribute so we declare this unconditionally: */
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extern size_t strlcpy(char *dest, const char *src, size_t size);
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#endif
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#endif /* __PERF_CACHE_H */
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@ -22,24 +22,6 @@ static const char *get_perf_dir(void)
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return ".";
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}
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/*
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* If libc has strlcpy() then that version will override this
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* implementation:
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*/
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size_t __weak strlcpy(char *dest, const char *src, size_t size)
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{
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size_t ret = strlen(src);
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if (size) {
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size_t len = (ret >= size) ? size - 1 : ret;
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memcpy(dest, src, len);
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dest[len] = '\0';
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}
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return ret;
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}
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static char *get_pathname(void)
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{
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static char pathname_array[4][PATH_MAX];
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