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tools lib: Adopt skip_spaces() from the kernel sources

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Same implementation, will be used to replace ad-hoc equivalent code in
tools/.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: André Goddard Rosa <andre.goddard@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-dig691cg9ripvoiprpidthw7@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2019-06-25 21:23:18 -03:00
parent bd9860bf05
commit 7bd330de43
2 changed files with 17 additions and 1 deletions
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4
tools/include/linux/string.h
View File

@ -29,4 +29,6 @@ static inline bool strstarts(const char *str, const char *prefix)
return strncmp(str, prefix, strlen(prefix)) == 0; return strncmp(str, prefix, strlen(prefix)) == 0;
} }
#endif /* _LINUX_STRING_H_ */ extern char * __must_check skip_spaces(const char *);
#endif /* _TOOLS_LINUX_STRING_H_ */

14
tools/lib/string.c
View File

@ -17,6 +17,7 @@
#include <string.h> #include <string.h>
#include <errno.h> #include <errno.h>
#include <linux/string.h> #include <linux/string.h>
#include <linux/ctype.h>
#include <linux/compiler.h> #include <linux/compiler.h>
/** /**
@ -106,3 +107,16 @@ size_t __weak strlcpy(char *dest, const char *src, size_t size)
} }
return ret; return ret;
} }
/**
* skip_spaces - Removes leading whitespace from @str.
* @str: The string to be stripped.
*
* Returns a pointer to the first non-whitespace character in @str.
*/
char *skip_spaces(const char *str)
{
while (isspace(*str))
++str;
return (char *)str;
}