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#include "config.h" #include <stdlib.h> #include <priv.h> #include <stdio.h> #include "memcached.h" /* * this section of code will drop all (Solaris) privileges including * those normally granted to all userland process (basic privileges). The * effect of this is that after running this code, the process will not able * to fork(), exec(), etc. See privileges(5) for more information. */ void drop_privileges(void) { priv_set_t *privs = priv_str_to_set("basic", ",", NULL); if (privs == NULL) { perror("priv_str_to_set"); exit(EXIT_FAILURE); } (void)priv_delset(privs, PRIV_FILE_LINK_ANY); (void)priv_delset(privs, PRIV_PROC_EXEC); (void)priv_delset(privs, PRIV_PROC_FORK); (void)priv_delset(privs, PRIV_PROC_INFO); (void)priv_delset(privs, PRIV_PROC_SESSION); if (setppriv(PRIV_SET, PRIV_PERMITTED, privs) != 0) { perror("setppriv(PRIV_SET, PRIV_PERMITTED)"); exit(EXIT_FAILURE); } priv_emptyset(privs); if (setppriv(PRIV_SET, PRIV_INHERITABLE, privs) != 0) { perror("setppriv(PRIV_SET, PRIV_INHERITABLE)"); exit(EXIT_FAILURE); } if (setppriv(PRIV_SET, PRIV_LIMIT, privs) != 0) { perror("setppriv(PRIV_SET, PRIV_LIMIT)"); exit(EXIT_FAILURE); } priv_freeset(privs); }