38 lines
1.4 KiB
Diff
38 lines
1.4 KiB
Diff
--- busybox-1.4.0/applets/applets.c Fri Jan 19 22:23:11 2007
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+++ busybox-1.4.0-conf/applets/applets.c Wed Jan 24 10:15:49 2007
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@@ -340,20 +340,26 @@
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if (sct) {
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mode_t m = sct->m_mode;
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- if (sct->m_uid == ruid) /* same uid */
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+ if (sct->m_uid == ruid)
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+ /* same uid */
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m >>= 6;
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- else if ((sct->m_gid == rgid) || ingroup(ruid, sct->m_gid)) /* same group / in group */
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+ else if ((sct->m_gid == rgid) || ingroup(ruid, sct->m_gid))
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+ /* same group / in group */
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m >>= 3;
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if (!(m & S_IXOTH)) /* is x bit not set ? */
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bb_error_msg_and_die("you have no permission to run this applet!");
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- if ((sct->m_mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP)) { /* *both* have to be set for sgid */
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- xsetgid(sct->m_gid);
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- } else xsetgid(rgid); /* no sgid -> drop */
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-
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- if (sct->m_mode & S_ISUID) xsetuid(sct->m_uid);
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- else xsetuid(ruid); /* no suid -> drop */
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+ if (sct->m_gid != 0) {
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+ /* _both_ have to be set for sgid */
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+ if ((sct->m_mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP)) {
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+ xsetgid(sct->m_gid);
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+ } else xsetgid(rgid); /* no sgid -> drop */
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+ }
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+ if (sct->m_uid != 0) {
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+ if (sct->m_mode & S_ISUID) xsetuid(sct->m_uid);
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+ else xsetuid(ruid); /* no suid -> drop */
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+ }
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} else {
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/* default: drop all privileges */
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xsetgid(rgid);
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