lm_load: fix string copying issues

- Ensure `section` doesn't overrun section by using strlcpy instead of
  strcpy [*].
- Use strdup instead of malloc + strcpy (this wasn't flagged by Coverity,
  but is an opportunistic change).

MFC after:	1 week
Reported by:	Coverity
CID:		1006826 [*]
This commit is contained in:
Enji Cooper 2017-01-05 07:55:17 +00:00
parent 20a4ce8bf2
commit 10a0306a2e
Notes: svn2git 2020-12-20 02:59:44 +00:00
svn path=/head/; revision=311378

View File

@ -2324,13 +2324,12 @@ lm_load(const char *path, const char *section)
}
m->handle = NULL;
m->flags = 0;
strcpy(m->section, section);
strlcpy(m->section, section, sizeof(m->section));
if ((m->path = malloc(strlen(path) + 1)) == NULL) {
if ((m->path = strdup(path)) == NULL) {
syslog(LOG_ERR, "lm_load: %m");
goto err;
}
strcpy(m->path, path);
/*
* Make index