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Abstract the libraries getting of the tid

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Signed-off-by: John Johansen <john.johansen@canonical.com>
Acked-by: Kees Cook <kees.cook@canonical.com>
This commit is contained in:
John Johansen
2011-07-21 11:06:57 -07:00
parent 0d9a39bd26
commit 2c110ed3d5
1 changed files with 10 additions and 5 deletions
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15
libraries/libapparmor/src/kernel_interface.c
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@@ -37,16 +37,21 @@
#define default_symbol_version(real, name, version) \ #define default_symbol_version(real, name, version) \
__asm__ (".symver " #real "," #name "@@" #version) __asm__ (".symver " #real "," #name "@@" #version)
static inline pid_t aa_gettid(void)
{
#ifdef SYS_gettid
return syscall(SYS_gettid);
#else
return getpid();
#endif
}
static int setprocattr(const char *path, const char *buf, int len) static int setprocattr(const char *path, const char *buf, int len)
{ {
int rc = -1; int rc = -1;
int fd, ret, ctlerr = 0; int fd, ret, ctlerr = 0;
char *ctl = NULL; char *ctl = NULL;
#ifdef SYS_gettid pid_t tid = aa_gettid();
pid_t tid = syscall(SYS_gettid);
#else
pid_t tid = getpid();
#endif
if (!buf) { if (!buf) {
errno = EINVAL; errno = EINVAL;