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[HAVE_SETEUID]: Declare seteuid.

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[HAVE_SETEGID]: Declare setegid.
(make_access, user_access) [HAVE_SETEUID]: Use seteuid.
[HAVE_SETEGID]: Use setegid.
This commit is contained in:
Roland McGrath 1994-04-21 02:41:36 +00:00
parent 5ebd380d7a
commit eb0dbf1993
1 changed files with 36 additions and 2 deletions
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38
misc.c
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@ -494,12 +494,20 @@ dep_name (dep)
#ifndef HAVE_UNISTD_H #ifndef HAVE_UNISTD_H
extern int getuid (), getgid (), geteuid (), getegid (); extern int getuid (), getgid (), geteuid (), getegid ();
extern int setuid (), setgid (); extern int setuid (), setgid ();
#ifdef HAVE_SETEUID
extern int seteuid ();
#else
#ifdef HAVE_SETREUID #ifdef HAVE_SETREUID
extern int setreuid (); extern int setreuid ();
#endif /* Have setreuid. */ #endif /* Have setreuid. */
#endif /* Have seteuid. */
#ifdef HAVE_SETEGID
extern int setegid ();
#else
#ifdef HAVE_SETREGID #ifdef HAVE_SETREGID
extern int setregid (); extern int setregid ();
#endif /* Have setregid. */ #endif /* Have setregid. */
#endif /* Have setegid. */
#endif /* No <unistd.h>. */ #endif /* No <unistd.h>. */
/* Keep track of the user and group IDs for user- and make- access. */ /* Keep track of the user and group IDs for user- and make- access. */
@ -565,6 +573,16 @@ user_access ()
We now want to set the effective user and group IDs to the real IDs, We now want to set the effective user and group IDs to the real IDs,
which are the IDs of the process that exec'd make. */ which are the IDs of the process that exec'd make. */
#ifdef HAVE_SETEUID
/* Modern systems have the seteuid/setegid calls which set only the
effective IDs, which is ideal. */
if (seteuid (user_uid) < 0)
pfatal_with_name ("user_access: seteuid");
#else /* Not HAVE_SETEUID. */
#ifndef HAVE_SETREUID #ifndef HAVE_SETREUID
/* System V has only the setuid/setgid calls to set user/group IDs. /* System V has only the setuid/setgid calls to set user/group IDs.
@ -578,7 +596,7 @@ user_access ()
if (setuid (user_uid) < 0) if (setuid (user_uid) < 0)
pfatal_with_name ("user_access: setuid"); pfatal_with_name ("user_access: setuid");
#else #else /* HAVE_SETREUID. */
/* In 4BSD, the setreuid/setregid calls set both the real and effective IDs. /* In 4BSD, the setreuid/setregid calls set both the real and effective IDs.
They may be set to themselves or each other. So you have two alternatives They may be set to themselves or each other. So you have two alternatives
@ -590,14 +608,20 @@ user_access ()
if (setreuid (make_uid, user_uid) < 0) if (setreuid (make_uid, user_uid) < 0)
pfatal_with_name ("user_access: setreuid"); pfatal_with_name ("user_access: setreuid");
#endif #endif /* Not HAVE_SETREUID. */
#endif /* HAVE_SETEUID. */
#ifdef HAVE_SETEGID
if (setegid (user_gid) < 0)
pfatal_with_name ("user_access: setegid");
#else
#ifndef HAVE_SETREGID #ifndef HAVE_SETREGID
if (setgid (user_gid) < 0) if (setgid (user_gid) < 0)
pfatal_with_name ("user_access: setgid"); pfatal_with_name ("user_access: setgid");
#else #else
if (setregid (make_gid, user_gid) < 0) if (setregid (make_gid, user_gid) < 0)
pfatal_with_name ("user_access: setregid"); pfatal_with_name ("user_access: setregid");
#endif
#endif #endif
current_access = user; current_access = user;
@ -622,6 +646,10 @@ make_access ()
/* See comments in user_access, above. */ /* See comments in user_access, above. */
#ifdef HAVE_SETEUID
if (seteuid (make_uid) < 0)
pfatal_with_name ("make_access: seteuid");
#else
#ifndef HAVE_SETREUID #ifndef HAVE_SETREUID
if (setuid (make_uid) < 0) if (setuid (make_uid) < 0)
pfatal_with_name ("make_access: setuid"); pfatal_with_name ("make_access: setuid");
@ -629,13 +657,19 @@ make_access ()
if (setreuid (user_uid, make_uid) < 0) if (setreuid (user_uid, make_uid) < 0)
pfatal_with_name ("make_access: setreuid"); pfatal_with_name ("make_access: setreuid");
#endif #endif
#endif
#ifdef HAVE_SETEGID
if (setegid (make_gid) < 0)
pfatal_with_name ("make_access: setegid");
#else
#ifndef HAVE_SETREGID #ifndef HAVE_SETREGID
if (setgid (make_gid) < 0) if (setgid (make_gid) < 0)
pfatal_with_name ("make_access: setgid"); pfatal_with_name ("make_access: setgid");
#else #else
if (setregid (user_gid, make_gid) < 0) if (setregid (user_gid, make_gid) < 0)
pfatal_with_name ("make_access: setregid"); pfatal_with_name ("make_access: setregid");
#endif
#endif #endif
current_access = make; current_access = make;