10c53b85c
Patrick Steinhardt
2017-07-06
Subject
setpriv: dump no-new-privs info
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util-linux/setpriv.c+10 -2
| @@ -62,6 +62,10 @@ | |
| #define PR_SET_NO_NEW_PRIVS 38 | |
| #endif | |
| + | #ifndef PR_GET_NO_NEW_PRIVS |
| + | #define PR_GET_NO_NEW_PRIVS 39 |
| + | #endif |
| + | |
| enum { | |
| IF_FEATURE_SETPRIV_DUMP(OPTBIT_DUMP,) | |
| OPTBIT_NNP, | |
| @@ -76,13 +80,17 @@ static int dump(void) | |
| uid_t ruid, euid, suid; | |
| gid_t rgid, egid, sgid; | |
| gid_t *gids; | |
| - | int ngids; |
| + | int ngids, nnp; |
| getresuid(&ruid, &euid, &suid); /* never fails in Linux */ | |
| getresgid(&rgid, &egid, &sgid); /* never fails in Linux */ | |
| ngids = 0; | |
| gids = bb_getgroups(&ngids, NULL); /* never fails in Linux */ | |
| + | nnp = prctl(PR_GET_NO_NEW_PRIVS, 0, 0, 0, 0); |
| + | if (nnp < 0) |
| + | bb_simple_perror_msg_and_die("prctl: GET_NO_NEW_PRIVS"); |
| + | |
| printf("uid: %u\n", (unsigned)ruid); | |
| printf("euid: %u\n", (unsigned)euid); | |
| printf("gid: %u\n", (unsigned)rgid); | |
| @@ -99,7 +107,7 @@ static int dump(void) | |
| fmt = ",%u"; | |
| } | |
| } | |
| - | bb_putchar('\n'); |
| + | printf("\nno_new_privs: %d\n", nnp); |
| if (ENABLE_FEATURE_CLEAN_UP) | |
| free(gids); | |