libctf: Fix recursive descent into anonymous SOU fields
Approved by: re (gjb)
PR: 262412
Tested by: dhw, gallatin
Fixes: a6fb86917362 ("libctf: Handle CTFv3 containers")
Sponsored by: The FreeBSD Foundation
(cherry picked from commit 6e563a1b608438504d963c2d7c70e50d2e75af46)
(cherry picked from commit 8b01c3026b
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@ -818,8 +818,8 @@ _ctf_member_info(ctf_file_t *fp, ctf_id_t type, const char *name, ulong_t off,
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ctf_get_ctm_info(fp, mp, size, &increment, &type, &offset,
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&name1);
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if (name1 == NULL &&
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_ctf_member_info(fp, type, name1, offset + off, mip) == 0)
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if (name1[0] == '\0' &&
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_ctf_member_info(fp, type, name, offset + off, mip) == 0)
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return (0);
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if (strcmp(name1, name) == 0) {
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mip->ctm_type = type;
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