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-rw-r--r--posix/Makefile1
-rw-r--r--posix/Versions7
-rw-r--r--posix/unistd.h18
3 files changed, 26 insertions, 0 deletions
diff --git a/posix/Makefile b/posix/Makefile
index aebd8b3b4b..ede9d1fa1d 100644
--- a/posix/Makefile
+++ b/posix/Makefile
@@ -45,6 +45,7 @@ routines := \
getpid getppid \
getuid geteuid getgid getegid getgroups setuid setgid group_member \
getpgid setpgid getpgrp bsd-getpgrp setpgrp getsid setsid \
+ getresuid getresgid setresuid setresgid \
getlogin getlogin_r setlogin \
pathconf sysconf fpathconf \
glob glob64 fnmatch regex \
diff --git a/posix/Versions b/posix/Versions
index a5378d1d38..d20e552d11 100644
--- a/posix/Versions
+++ b/posix/Versions
@@ -109,6 +109,13 @@ libc {
# For syscall wrapper
__nanosleep;
}
+ GLIBC_2.3.2 {
+ # Note that these symbols appear in sysdeps/unix/sysv/linux/Versions
+ # under GLIBC_2.0; the first instance in the script is taken as the
+ # default, so linux configurations put them in GLIBC_2.0 while other
+ # configuration put them in GLIBC_2.3.2.
+ getresuid; getresgid; setresuid; setresgid;
+ }
GLIBC_PRIVATE {
# functions which have an additional interface since they are
# are cancelable.
diff --git a/posix/unistd.h b/posix/unistd.h
index 792c80af33..9c27c84ed0 100644
--- a/posix/unistd.h
+++ b/posix/unistd.h
@@ -640,6 +640,24 @@ extern int setregid (__gid_t __rgid, __gid_t __egid) __THROW;
extern int setegid (__gid_t __gid) __THROW;
#endif /* Use BSD. */
+#ifdef __USE_GNU
+/* Fetch the effective user ID, real user ID, and saved-set user ID,
+ of the calling process. */
+extern int getresuid (__uid_t *__euid, __uid_t *__ruid, __uid_t *__suid);
+
+/* Fetch the effective group ID, real group ID, and saved-set group ID,
+ of the calling process. */
+extern int getresgid (__gid_t *__egid, __gid_t *__rgid, __gid_t *__sgid);
+
+/* Set the effective user ID, real user ID, and saved-set user ID,
+ of the calling process to EUID, RUID, and SUID, respectively. */
+extern int setresuid (__uid_t __euid, __uid_t __ruid, __uid_t __suid);
+
+/* Set the effective group ID, real group ID, and saved-set group ID,
+ of the calling process to EGID, RGID, and SGID, respectively. */
+extern int setresgid (__gid_t __egid, __gid_t __rgid, __gid_t __sgid);
+#endif
+
/* Clone the calling process, creating an exact copy.
Return -1 for errors, 0 to the new process,