Author: kib Date: Wed Sep 26 21:27:08 2018 New Revision: 338955 URL: https://svnweb.freebsd.org/changeset/base/338955
Log: When doing lm_add(), check for duplicates. This is useful when lm_find() moves the match to the global mapping, since lm_find() could be called with a same path more than once. Reported and tested by: Andreas Longwitz <[email protected]> Sponsored by: The FreeBSD Foundation Approved by: re (gjb) MFC after: 1 week Modified: head/libexec/rtld-elf/libmap.c Modified: head/libexec/rtld-elf/libmap.c ============================================================================== --- head/libexec/rtld-elf/libmap.c Wed Sep 26 21:16:07 2018 (r338954) +++ head/libexec/rtld-elf/libmap.c Wed Sep 26 21:27:08 2018 (r338955) @@ -353,6 +353,7 @@ lm_add(const char *p, const char *f, const char *t) { struct lm_list *lml; struct lm *lm; + const char *t1; if (p == NULL) p = "$DEFAULT$"; @@ -362,11 +363,14 @@ lm_add(const char *p, const char *f, const char *t) if ((lml = lmp_find(p)) == NULL) lml = lmp_init(xstrdup(p)); - lm = xmalloc(sizeof(struct lm)); - lm->f = xstrdup(f); - lm->t = xstrdup(t); - TAILQ_INSERT_HEAD(lml, lm, lm_link); - lm_count++; + t1 = lml_find(lml, f); + if (t1 == NULL || strcmp(t1, t) != 0) { + lm = xmalloc(sizeof(struct lm)); + lm->f = xstrdup(f); + lm->t = xstrdup(t); + TAILQ_INSERT_HEAD(lml, lm, lm_link); + lm_count++; + } } char * _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "[email protected]"
