acl.c: Coerce a NULL pointer into the empty string
If an ACL is misconfigured in the realtime database (for instance, the "rule" is blank) and Asterisk attempts to read the ACL, Asterisk will crash. ASTERISK-28978 #close Change-Id: Ic1536c4df856231bfd2da00128f7822224d77610
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@ -578,7 +578,7 @@ static struct ast_ha *append_ha_core(const char *sense, const char *stuff, struc
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struct ast_ha *ha;
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struct ast_ha *prev = NULL;
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struct ast_ha *ret;
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char *tmp, *list = ast_strdupa(stuff);
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char *tmp, *list = ast_strdupa(stuff ?: "");
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char *address = NULL, *mask = NULL;
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int addr_is_v4;
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int allowing = strncasecmp(sense, "p", 1) ? AST_SENSE_DENY : AST_SENSE_ALLOW;
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