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tools: bpftool: add pointer to file argument to print_hex()

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Make print_hex() able to print to any file instead of standard output
only, and rename it to fprint_hex(). The function can now be called with
the info() macro, for example, without splitting the output between
standard and error outputs.

Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Quentin Monnet
2017-10-19 15:46:19 -07:00
committed by David S. Miller
parent f3ae608edb
commit 9cbe1f581d
4 changed files with 17 additions and 17 deletions
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20
tools/bpf/bpftool/map.c
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@@ -216,12 +216,12 @@ static void print_entry(struct bpf_map_info *info, unsigned char *key,
!break_names;
printf("key:%c", break_names ? '\n' : ' ');
print_hex(key, info->key_size, " ");
fprint_hex(stdout, key, info->key_size, " ");
printf(single_line ? " " : "\n");
printf("value:%c", break_names ? '\n' : ' ');
print_hex(value, info->value_size, " ");
fprint_hex(stdout, value, info->value_size, " ");
printf("\n");
} else {
@@ -230,13 +230,13 @@ static void print_entry(struct bpf_map_info *info, unsigned char *key,
n = get_possible_cpus();
printf("key:\n");
print_hex(key, info->key_size, " ");
fprint_hex(stdout, key, info->key_size, " ");
printf("\n");
for (i = 0; i < n; i++) {
printf("value (CPU %02d):%c",
i, info->value_size > 16 ? '\n' : ' ');
print_hex(value + i * info->value_size,
info->value_size, " ");
fprint_hex(stdout, value + i * info->value_size,
info->value_size, " ");
printf("\n");
}
}
@@ -492,8 +492,8 @@ static int do_dump(int argc, char **argv)
print_entry(&info, key, value);
} else {
info("can't lookup element with key: ");
print_hex(key, info.key_size, " ");
printf("\n");
fprint_hex(stderr, key, info.key_size, " ");
fprintf(stderr, "\n");
}
prev_key = key;
@@ -587,7 +587,7 @@ static int do_lookup(int argc, char **argv)
print_entry(&info, key, value);
} else if (errno == ENOENT) {
printf("key:\n");
print_hex(key, info.key_size, " ");
fprint_hex(stdout, key, info.key_size, " ");
printf("\n\nNot found\n");
} else {
err("lookup failed: %s\n", strerror(errno));
@@ -642,14 +642,14 @@ static int do_getnext(int argc, char **argv)
if (key) {
printf("key:\n");
print_hex(key, info.key_size, " ");
fprint_hex(stdout, key, info.key_size, " ");
printf("\n");
} else {
printf("key: None\n");
}
printf("next key:\n");
print_hex(nextkey, info.key_size, " ");
fprint_hex(stdout, nextkey, info.key_size, " ");
printf("\n");
exit_free: