startdaemon.c (29780) | startdaemon.c (31492) |
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1/* 2 * Copyright (c) 1983, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 22 unchanged lines hidden (view full) --- 31 * SUCH DAMAGE. 32 */ 33 34#ifndef lint 35#if 0 36static char sccsid[] = "@(#)startdaemon.c 8.2 (Berkeley) 4/17/94"; 37#endif 38static const char rcsid[] = | 1/* 2 * Copyright (c) 1983, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 22 unchanged lines hidden (view full) --- 31 * SUCH DAMAGE. 32 */ 33 34#ifndef lint 35#if 0 36static char sccsid[] = "@(#)startdaemon.c 8.2 (Berkeley) 4/17/94"; 37#endif 38static const char rcsid[] = |
39 "$Id$"; | 39 "$Id: startdaemon.c,v 1.6 1997/09/24 06:47:32 charnier Exp $"; |
40#endif /* not lint */ 41 42 43#include <sys/param.h> 44#include <sys/socket.h> | 40#endif /* not lint */ 41 42 43#include <sys/param.h> 44#include <sys/socket.h> |
45#include <sys/uio.h> |
|
45#include <sys/un.h> 46 47#include <dirent.h> 48#include <err.h> 49#include <stdio.h> 50#include <string.h> 51#include <unistd.h> 52#include "lp.h" 53#include "pathnames.h" 54 55extern uid_t uid, euid; 56 57/* 58 * Tell the printer daemon that there are new files in the spool directory. 59 */ 60 61int | 46#include <sys/un.h> 47 48#include <dirent.h> 49#include <err.h> 50#include <stdio.h> 51#include <string.h> 52#include <unistd.h> 53#include "lp.h" 54#include "pathnames.h" 55 56extern uid_t uid, euid; 57 58/* 59 * Tell the printer daemon that there are new files in the spool directory. 60 */ 61 62int |
62startdaemon(printer) 63 char *printer; | 63startdaemon(pp) 64 const struct printer *pp; |
64{ 65 struct sockaddr_un un; 66 register int s, n; | 65{ 66 struct sockaddr_un un; 67 register int s, n; |
67 char buf[BUFSIZ]; | 68 char c; |
68 | 69 |
69 s = socket(AF_UNIX, SOCK_STREAM, 0); | 70 s = socket(PF_LOCAL, SOCK_STREAM, 0); |
70 if (s < 0) { 71 warn("socket"); 72 return(0); 73 } 74 memset(&un, 0, sizeof(un)); | 71 if (s < 0) { 72 warn("socket"); 73 return(0); 74 } 75 memset(&un, 0, sizeof(un)); |
75 un.sun_family = AF_UNIX; | 76 un.sun_family = AF_LOCAL; |
76 strcpy(un.sun_path, _PATH_SOCKETNAME); 77#ifndef SUN_LEN 78#define SUN_LEN(unp) (strlen((unp)->sun_path) + 2) 79#endif 80 seteuid(euid); 81 if (connect(s, (struct sockaddr *)&un, SUN_LEN(&un)) < 0) { 82 seteuid(uid); 83 warn("connect"); 84 (void) close(s); 85 return(0); 86 } 87 seteuid(uid); | 77 strcpy(un.sun_path, _PATH_SOCKETNAME); 78#ifndef SUN_LEN 79#define SUN_LEN(unp) (strlen((unp)->sun_path) + 2) 80#endif 81 seteuid(euid); 82 if (connect(s, (struct sockaddr *)&un, SUN_LEN(&un)) < 0) { 83 seteuid(uid); 84 warn("connect"); 85 (void) close(s); 86 return(0); 87 } 88 seteuid(uid); |
88 if (snprintf(buf, sizeof(buf), "\1%s\n", printer) > sizeof(buf) - 1) { 89 close(s); 90 return (0); 91 } 92 n = strlen(buf); 93 if (write(s, buf, n) != n) { | 89 90 /* 91 * Avoid overruns without putting artificial limitations on 92 * the length. 93 */ 94 if (writel(s, "\1", pp->printer, "\n", (char *)0) <= 0) { |
94 warn("write"); 95 (void) close(s); 96 return(0); 97 } | 95 warn("write"); 96 (void) close(s); 97 return(0); 98 } |
98 if (read(s, buf, 1) == 1) { 99 if (buf[0] == '\0') { /* everything is OK */ | 99 if (read(s, &c, 1) == 1) { 100 if (c == '\0') { /* everything is OK */ |
100 (void) close(s); 101 return(1); 102 } | 101 (void) close(s); 102 return(1); 103 } |
103 putchar(buf[0]); | 104 putchar(c); |
104 } | 105 } |
105 while ((n = read(s, buf, sizeof(buf))) > 0) 106 fwrite(buf, 1, n, stdout); | 106 while ((n = read(s, &c, 1)) > 0) 107 putchar(c); |
107 (void) close(s); 108 return(0); 109} | 108 (void) close(s); 109 return(0); 110} |