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libselinux/getconlist: report failures

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Check the given context a priori, to print a more user friendly message,
opposed to a generic following get_ordered_context_list/_with_level
failure.

Notify the user about failures of get_ordered_context_list/_with_level,
so no-context-found and a failure results are distinguishable.

Signed-off-by: Christian Göttsche <cgzones@googlemail.com>
This commit is contained in:
Christian Göttsche 2021-02-03 18:16:53 +01:00 committed by Petr Lautrbach
parent 0451adebdf
commit 9cc6b5cf40
1 changed files with 12 additions and 1 deletions
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13
libselinux/utils/getconlist.c
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@ -58,8 +58,14 @@ int main(int argc, char **argv)
free(level); free(level);
return 2; return 2;
} }
} else } else {
cur_context = argv[optind + 1]; cur_context = argv[optind + 1];
if (security_check_context(cur_context) != 0) {
fprintf(stderr, "Given context '%s' is invalid.\n", cur_context);
free(level);
return 3;
}
}
/* Get the list and print it */ /* Get the list and print it */
if (level) if (level)
@ -72,6 +78,11 @@ int main(int argc, char **argv)
for (i = 0; list[i]; i++) for (i = 0; list[i]; i++)
puts(list[i]); puts(list[i]);
freeconary(list); freeconary(list);
} else {
fprintf(stderr, "get_ordered_context_list%s failure: %d(%s)\n",
level ? "_with_level" : "", errno, strerror(errno));
free(level);
return 4;
} }
free(level); free(level);