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