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* grub-core/kern/misc.c (grub_strstr): Moved from here ...

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* include/grub/misc.h (grub_strstr): ... here. Make static and inline.
This commit is contained in:
Vladimir 'phcoder' Serbinenko 2011-11-11 20:02:51 +01:00
parent a8bd9d39d6
commit 067fdf0055
3 changed files with 52 additions and 47 deletions
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48
include/grub/misc.h
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@ -113,7 +113,53 @@ int EXPORT_FUNC(grub_strncmp) (const char *s1, const char *s2, grub_size_t n);
char *EXPORT_FUNC(grub_strchr) (const char *s, int c);
char *EXPORT_FUNC(grub_strrchr) (const char *s, int c);
int EXPORT_FUNC(grub_strword) (const char *s, const char *w);
char *EXPORT_FUNC(grub_strstr) (const char *haystack, const char *needle);
/* Copied from gnulib.
Written by Bruno Haible <bruno@clisp.org>, 2005. */
static inline char *
grub_strstr (const char *haystack, const char *needle)
{
/* Be careful not to look at the entire extent of haystack or needle
until needed. This is useful because of these two cases:
- haystack may be very long, and a match of needle found early,
- needle may be very long, and not even a short initial segment of
needle may be found in haystack. */
if (*needle != '\0')
{
/* Speed up the following searches of needle by caching its first
character. */
char b = *needle++;
for (;; haystack++)
{
if (*haystack == '\0')
/* No match. */
return 0;
if (*haystack == b)
/* The first character matches. */
{
const char *rhaystack = haystack + 1;
const char *rneedle = needle;
for (;; rhaystack++, rneedle++)
{
if (*rneedle == '\0')
/* Found a match. */
return (char *) haystack;
if (*rhaystack == '\0')
/* No match. */
return 0;
if (*rhaystack != *rneedle)
/* Nothing in this round. */
break;
}
}
}
}
else
return (char *) haystack;
}
int EXPORT_FUNC(grub_isspace) (int c);
int EXPORT_FUNC(grub_isprint) (int c);