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// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
/* Copyright (C) 2020 Facebook, Inc. */
#include <stdlib.h>
#include <errno.h>
#include "testing_helpers.h"
int parse_num_list(const char *s, bool **num_set, int *num_set_len)
{
int i, set_len = 0, new_len, num, start = 0, end = -1;
bool *set = NULL, *tmp, parsing_end = false;
char *next;
while (s[0]) {
errno = 0;
num = strtol(s, &next, 10);
if (errno)
return -errno;
if (parsing_end)
end = num;
else
start = num;
if (!parsing_end && *next == '-') {
s = next + 1;
parsing_end = true;
continue;
} else if (*next == ',') {
parsing_end = false;
s = next + 1;
end = num;
} else if (*next == '\0') {
parsing_end = false;
s = next;
end = num;
} else {
return -EINVAL;
}
if (start > end)
return -EINVAL;
if (end + 1 > set_len) {
new_len = end + 1;
tmp = realloc(set, new_len);
if (!tmp) {
free(set);
return -ENOMEM;
}
for (i = set_len; i < start; i++)
tmp[i] = false;
set = tmp;
set_len = new_len;
}
for (i = start; i <= end; i++)
set[i] = true;
}
if (!set)
return -EINVAL;
*num_set = set;
*num_set_len = set_len;
return 0;
}
__u32 link_info_prog_id(const struct bpf_link *link, struct bpf_link_info *info)
{
__u32 info_len = sizeof(*info);
int err;
memset(info, 0, sizeof(*info));
err = bpf_obj_get_info_by_fd(bpf_link__fd(link), info, &info_len);
if (err) {
printf("failed to get link info: %d\n", -errno);
return 0;
}
return info->prog_id;
}
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