Function parse_uri

parser/parse_uri.c:307–402

buf= pointer to beginning of uri (sip:x@foo.bar:5060;a=b?h=i) * len= len of uri * returns: fills uri & returns <0 on error or 0 if ok */

 * returns: fills uri & returns <0 on error or 0 if ok
 */
int parse_uri(char* buf, int len, struct sip_uri* uri)
{
	enum states  {	URI_INIT, URI_USER, URI_PASSWORD, URI_PASSWORD_ALPHA,
					URI_HOST, URI_HOST_P,
					URI_HOST6_P, URI_HOST6_END, URI_PORT,
					URI_PARAM, URI_PARAM_P, URI_PARAM_VAL_P,
					URI_VAL_P, URI_HEADERS,
					/* param states */
					/* transport */
					PT_T, PT_R, PT_A, PT_N, PT_S, PT_P, PT_O, PT_R2, PT_T2,
					PT_eq,
					/* ttl */
					PTTL_T2, PTTL_L, PTTL_eq,
					/* user */
					PU_U, PU_S, PU_E, PU_R, PU_eq,
					/* method */
					PM_M, PM_E, PM_T, PM_H, PM_O, PM_D, PM_eq,
					/* maddr */
					PMA_A, PMA_D, PMA_D2, PMA_R, PMA_eq,
					/* lr */
					PLR_L, PLR_R_FIN, PLR_eq,
					/* gr */
					PG_G, PG_G_FIN, PG_eq,
					/* r2 */
					PR2_R, PR2_2_FIN, PR2_eq,
					/* transport values */
					/* udp */
					VU_U, VU_D, VU_P_FIN,
					/* tcp */
					VT_T, VT_C, VT_P_FIN,
					/* tls */
					VTLS_L, VTLS_S_FIN,
					/* sctp */
					VS_S, VS_C, VS_T, VS_P_FIN,
					/* ws */
					VW_W, VW_S, VW_S_FIN, VWS_S_FIN,

					/* pn-{provider, prid, param, purr} (RFC 8599 - SIP PN) */
					PN_P, PN_N, PN_dash, PN_P2, PN_PR,
					PN1_O, PN1_V, PN1_I, PN1_D, PN1_E, PN1_FIN, PN1_eq,
					PN2_I, PN2_D, PN2_eq,
					PN3_A, PN3_R, PN3_A2, PN3_M, PN3_eq,
					PN4_U, PN4_R, PN4_R2, PN4_eq,

	};
	register enum states state;
	char* s;
	char* b; /* param start */
	char *v; /* value start */
	str* param; /* current param */
	str* param_val; /* current param val */
	str user;
	str password;
	unsigned int port_no;
	register char* p;
	char* end;
	char* pass;
	int found_user;