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btrfs-progs: help: update messages of argc constraint checkers 

The messages should be more specific about how many arguments are
actuall expected.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2019-03-01 20:57:05 +01:00
parent 309719fb97
commit c9b60c9087
1 changed files with 10 additions and 6 deletions
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16
help.c
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@ -52,10 +52,10 @@ void set_argv0(char **argv)
int check_argc_exact(int nargs, int expected)
{
if (nargs < expected)
fprintf(stderr, "%s: too few arguments\n", argv0_buf);
if (nargs > expected)
fprintf(stderr, "%s: too many arguments\n", argv0_buf);
if (nargs != expected)
fprintf(stderr, "%s: exactly %d argument%s expected, %d given\n",
argv0_buf, expected,
expected > 1 ? "s" : "", nargs);
return nargs != expected;
}
@ -63,7 +63,9 @@ int check_argc_exact(int nargs, int expected)
int check_argc_min(int nargs, int expected)
{
if (nargs < expected) {
fprintf(stderr, "%s: too few arguments\n", argv0_buf);
fprintf(stderr,
"%s: not enough arguments: %d but at least %d expected\n",
argv0_buf, nargs, expected);
return 1;
}
@ -73,7 +75,9 @@ int check_argc_min(int nargs, int expected)
int check_argc_max(int nargs, int expected)
{
if (nargs > expected) {
fprintf(stderr, "%s: too many arguments\n", argv0_buf);
fprintf(stderr,
"%s: too many arguments: %d but at most %d expected\n",
argv0_buf, nargs, expected);
return 1;
}