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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
extern int getuid (), getgid (), geteuid (), getegid ();
extern int setuid (), setgid ();
#ifdef HAVE_SETEUID
extern int seteuid ();
#else
#ifdef HAVE_SETREUID
extern int setreuid ();
#endif /* Have setreuid. */
#endif /* Have seteuid. */
#ifdef HAVE_SETEGID
extern int setegid ();
#else
#ifdef HAVE_SETREGID
extern int setregid ();
#endif /* Have setregid. */
#endif /* Have setegid. */
#endif /* No <unistd.h>. */
/* 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,
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
/* System V has only the setuid/setgid calls to set user/group IDs.
@ -578,7 +596,7 @@ user_access ()
if (setuid (user_uid) < 0)
pfatal_with_name ("user_access: setuid");
#else
#else /* HAVE_SETREUID. */
/* 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
@ -590,14 +608,20 @@ user_access ()
if (setreuid (make_uid, user_uid) < 0)
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
if (setgid (user_gid) < 0)
pfatal_with_name ("user_access: setgid");
#else
if (setregid (make_gid, user_gid) < 0)
pfatal_with_name ("user_access: setregid");
#endif
#endif
current_access = user;
@ -622,6 +646,10 @@ make_access ()
/* See comments in user_access, above. */
#ifdef HAVE_SETEUID
if (seteuid (make_uid) < 0)
pfatal_with_name ("make_access: seteuid");
#else
#ifndef HAVE_SETREUID
if (setuid (make_uid) < 0)
pfatal_with_name ("make_access: setuid");
@ -629,13 +657,19 @@ make_access ()
if (setreuid (user_uid, make_uid) < 0)
pfatal_with_name ("make_access: setreuid");
#endif
#endif
#ifdef HAVE_SETEGID
if (setegid (make_gid) < 0)
pfatal_with_name ("make_access: setegid");
#else
#ifndef HAVE_SETREGID
if (setgid (make_gid) < 0)
pfatal_with_name ("make_access: setgid");
#else
if (setregid (user_gid, make_gid) < 0)
pfatal_with_name ("make_access: setregid");
#endif
#endif
current_access = make;