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xbps_file_exec: if chroot(2) returns EPERM, don't error out and try chdir(2).

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This makes possible to install a base system with fakeroot (of course
some things won't probably work fully).
This commit is contained in:
Juan RP 2011-02-25 11:17:13 +01:00
parent 9759a62e3f
commit ce24ff488c
1 changed files with 10 additions and 5 deletions
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9
lib/fexec.c
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@ -64,12 +64,17 @@ pfcexec(const char *path, const char *file, const char **argv)
} else if (path && !do_chroot) { } else if (path && !do_chroot) {
if (chdir(path) == -1) if (chdir(path) == -1)
_exit(127); _exit(127);
} else if (!path && do_chroot) { } else if (path == NULL && do_chroot) {
if (chroot(".") == -1) if (chroot(".") == -1) {
if (errno != EPERM)
_exit(127); _exit(127);
if (chdir(path) == -1)
_exit(127);
} else {
if (chdir("/") == -1) if (chdir("/") == -1)
_exit(127); _exit(127);
} }
}
(void)execv(file, __UNCONST(argv)); (void)execv(file, __UNCONST(argv));
_exit(127); _exit(127);