4  * Copyright © 2020-2024 by OpenPrinting.
5  * Copyright © 2007-2016 by Apple Inc.
6  * Copyright © 2006-2007 by Easy Software Products, all rights reserved.
16 #include "backend-private.h"
18 #include <sys/select.h>
22  * 'backendCheckSideChannel()' - Check the side-channel for pending requests.
27     int         snmp_fd,		/* I - SNMP socket */  in backendCheckSideChannel()
28     http_addr_t *addr)			/* I - Address of device */  in backendCheckSideChannel()
30   fd_set	input;			/* Select input set */  in backendCheckSideChannel()
31   struct timeval timeout;		/* Select timeout */  in backendCheckSideChannel()
39   if (select(CUPS_SC_FD + 1, &input, NULL, NULL, &timeout) > 0)  in backendCheckSideChannel()
40     backendNetworkSideCB(-1, -1, snmp_fd, addr, 0);  in backendCheckSideChannel()
45  * 'backendLookup()' - Lookup the given host and log addresses.
48 http_addrlist_t	*			/* O - List of addresses or NULL */
49 backendLookup(const char *hostname,	/* I - Hostname */  in backendLookup()
50               int        port,		/* I - Port number */  in backendLookup()
51 	      int        *cancel)	/* I - Variable to watch for job cancel */  in backendLookup()
65   fputs("STATE: +connecting-to-device\n", stderr);  in backendLookup()
75       fputs("STATE: -connecting-to-device\n", stderr);  in backendLookup()
81       fputs("STATE: -connecting-to-device\n", stderr);  in backendLookup()
86   fputs("STATE: -connecting-to-device\n", stderr);  in backendLookup()
92   for (current = addrlist; current; current = current->next)  in backendLookup()
93 …fprintf(stderr, "DEBUG: %s=%s\n", hostname, httpAddrString(&current->addr, addrname, sizeof(addrna…  in backendLookup()
104  * 'backendNetworkSideCB()' - Handle common network side-channel commands.
107 int					/* O - -1 on error, 0 on success */
109     int         print_fd,		/* I - Print file or -1 */  in backendNetworkSideCB()
110     int         device_fd,		/* I - Device file or -1 */  in backendNetworkSideCB()
111     int         snmp_fd,		/* I - SNMP socket */  in backendNetworkSideCB()
112     http_addr_t *addr,			/* I - Address of device */  in backendNetworkSideCB()
113     int         use_bc)			/* I - Use back-channel data? */  in backendNetworkSideCB()
125     return (-1);  in backendNetworkSideCB()
183 	         count > 0 && dataptr < (data + sizeof(data) - 1);  in backendNetworkSideCB()
184 	         count --, dataptr += strlen(dataptr))  in backendNetworkSideCB()
185 	      strlcpy(dataptr, snmp_value, sizeof(data) - (size_t)(dataptr - data));  in backendNetworkSideCB()
191 	    datalen = (int)(dataptr - data);  in backendNetworkSideCB()
229 		    snprintf(dataptr, sizeof(data) - (size_t)(dataptr - data), "%d", packet.object_value.boolean);  in backendNetworkSideCB()
234 		    snprintf(dataptr, sizeof(data) - (size_t)(dataptr - data), "%d",  in backendNetworkSideCB()
241 		    if (packet.object_value.string.num_bytes < (sizeof(data) - (size_t)(dataptr - data)))  in backendNetworkSideCB()
244 		      i = sizeof(data) - (size_t)(dataptr - data);  in backendNetworkSideCB()
253 		                         sizeof(data) - (size_t)(dataptr - data));  in backendNetworkSideCB()
260 			     dataptr < (data + sizeof(data) - 3);  in backendNetworkSideCB()
262 …snprintf(dataptr, sizeof(data) - (size_t)(dataptr - data), "%02X", packet.object_value.string.byte…  in backendNetworkSideCB()
267 		    snprintf(dataptr, sizeof(data) - (size_t)(dataptr - data), "%u", packet.object_value.counter);  in backendNetworkSideCB()
272 		    snprintf(dataptr, sizeof(data) - (size_t)(dataptr - data), "%u", packet.object_value.gauge);  in backendNetworkSideCB()
277 …   snprintf(dataptr, sizeof(data) - (size_t)(dataptr - data), "%u", packet.object_value.timeticks);  in backendNetworkSideCB()
307         data[0] = device_fd != -1;  in backendNetworkSideCB()
316 	  		{ CUPS_OID_ppmPrinterIEEE1284DeviceId,1,-1 };  in backendNetworkSideCB()