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Handle argc == 0 better

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Unfortunately it's possible for argc to be 0, so error out pretty early
on in that case. I don't think this is a security issue in this case.

Signed-off-by: Phaedrus Leeds <mwleeds@protonmail.com>
This commit is contained in:
Phaedrus Leeds
2022-01-31 08:41:22 -08:00
parent 798ced8a65
commit f7dbb36cd1
1 changed files with 3 additions and 3 deletions
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6
bubblewrap.c
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@@ -222,7 +222,7 @@ lock_file_new (const char *path)
static void
usage (int ecode, FILE *out)
{
fprintf (out, "usage: %s [OPTIONS...] [--] COMMAND [ARGS...]\n\n", argv0);
fprintf (out, "usage: %s [OPTIONS...] [--] COMMAND [ARGS...]\n\n", argv0 ? argv0 : "bwrap");
fprintf (out,
" --help Print this help\n"
@@ -2505,7 +2505,7 @@ main (int argc,
argv++;
argc--;
if (argc == 0)
if (argc <= 0)
usage (EXIT_FAILURE, stderr);
parse_args (&argc, (const char ***) &argv);
@@ -2589,7 +2589,7 @@ main (int argc,
opt_unshare_user = TRUE;
}
if (argc == 0)
if (argc <= 0)
usage (EXIT_FAILURE, stderr);
__debug__ (("Creating root mount point\n"));