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Code Issues Releases Wiki Activity

Make strnlen() visible in old versions of glibc

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Strnlen() is in POSIX 2008 but was a GNU extension up to glibc 2.10
requiring to define _GNU_SOURCE. This fixes compilation on CentOS 4.9.
Also, move our implementation of strnlen() that was added to support
DJGPP to helpers.c.

Corresponding to flashrom svn r1878.

Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
This commit is contained in:
Stefan Tauner 2015-01-27 18:07:50 +00:00
parent 0cbd8c2558
commit dc62793184
3 changed files with 20 additions and 10 deletions
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17
dmi.c
View File

@ -21,6 +21,13 @@
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/* strnlen is in POSIX but was a GNU extension up to glibc 2.10 */
#if (__GLIBC__ == 2 && __GLIBC_MINOR__ < 10) || __GLIBC__ < 2
#define _GNU_SOURCE
#else
#define _POSIX_C_SOURCE 200809L
#endif
#include <strings.h>
#include <string.h>
#include <ctype.h>
@ -86,16 +93,6 @@ static const struct {
};
#if CONFIG_INTERNAL_DMI == 1
#ifdef __DJGPP__ /* There is no strnlen in DJGPP. FIXME: Move this to a common utility file. */
size_t strnlen(const char *str, size_t n)
{
size_t i;
for (i = 0; i < n && str[i] != '\0'; i++)
;
return i;
}
#endif
static bool dmi_checksum(const uint8_t * const buf, size_t len)
{
uint8_t sum = 0;

3
flash.h
View File

@ -260,6 +260,9 @@ void tolower_string(char *str);
#ifdef __MINGW32__
char* strtok_r(char *str, const char *delim, char **nextp);
#endif
#if defined(__DJGPP__)
size_t strnlen(const char *str, size_t n);
#endif
/* flashrom.c */
extern const char flashrom_version[];

10
helpers.c
View File

@ -91,3 +91,13 @@ char* strtok_r(char *str, const char *delim, char **nextp)
}
#endif
/* There is no strnlen in DJGPP */
#if defined(__DJGPP__)
size_t strnlen(const char *str, size_t n)
{
size_t i;
for (i = 0; i < n && str[i] != '\0'; i++)
;
return i;
}
#endif