efi-boot-shim/include/str.h
Peter Jones aedb8470bd Fix up a bunch of our license statements and add SPDX most places
The license statements in our source files were getting to be a giant
mess, and mostly they all just say the same thing.  I've switched most
of it to SPDX labels, but left copyright statements in place (where they
were not obviously incorrect copy-paste jobs that I did...).

If there's some change here you don't think is valid, let me know and
we can fix it up together.

Signed-off-by: Peter Jones <pjones@redhat.com>
2021-02-16 09:12:48 +01:00

114 lines
1.8 KiB
C

// SPDX-License-Identifier: BSD-2-Clause-Patent
#ifndef SHIM_STR_H
#define SHIM_STR_H
static inline
__attribute__((unused))
unsigned long strnlena(const CHAR8 *s, unsigned long n)
{
unsigned long i;
for (i = 0; i <= n; i++)
if (s[i] == '\0')
break;
return i;
}
static inline
__attribute__((unused))
CHAR8 *
strncpya(CHAR8 *dest, const CHAR8 *src, unsigned long n)
{
unsigned long i;
for (i = 0; i < n && src[i] != '\0'; i++)
dest[i] = src[i];
for (; i < n; i++)
dest[i] = '\0';
return dest;
}
static inline
__attribute__((unused))
CHAR8 *
strcata(CHAR8 *dest, const CHAR8 *src)
{
unsigned long dest_len = strlena(dest);
unsigned long i;
for (i = 0; src[i] != '\0'; i++)
dest[dest_len + i] = src[i];
dest[dest_len + i] = '\0';
return dest;
}
static inline
__attribute__((unused))
CHAR8 *
strndupa(const CHAR8 * const src, const UINTN srcmax)
{
UINTN len;
CHAR8 *news = NULL;
if (!src || !srcmax)
return news;
len = strnlena(src, srcmax);
news = AllocateZeroPool(len);
if (news)
strncpya(news, src, len);
return news;
}
static inline
__attribute__((unused))
CHAR8 *
translate_slashes(CHAR8 *out, const char *str)
{
int i;
int j;
if (str == NULL || out == NULL)
return NULL;
for (i = 0, j = 0; str[i] != '\0'; i++, j++) {
if (str[i] == '\\') {
out[j] = '/';
if (str[i+1] == '\\')
i++;
} else
out[j] = str[i];
}
out[j] = '\0';
return out;
}
static inline UNUSED CHAR8 *
strchrnula(const CHAR8 *s, int c)
{
unsigned int i;
if (s == NULL)
return NULL;
for (i = 0; s[i] != '\000' && s[i] != c; i++)
;
return (CHAR8 *)&s[i];
}
static inline UNUSED CHAR8 *
strchra(const CHAR8 *s, int c)
{
const CHAR8 *s1;
s1 = strchrnula(s, c);
if (!s1 || s1[0] == '\000')
return NULL;
return (CHAR8 *)s1;
}
#endif /* SHIM_STR_H */