1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START 3*7c478bd9Sstevel@tonic-gate * 4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*7c478bd9Sstevel@tonic-gate * with the License. 8*7c478bd9Sstevel@tonic-gate * 9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 12*7c478bd9Sstevel@tonic-gate * and limitations under the License. 13*7c478bd9Sstevel@tonic-gate * 14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*7c478bd9Sstevel@tonic-gate * 20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END 21*7c478bd9Sstevel@tonic-gate */ 22*7c478bd9Sstevel@tonic-gate /* 23*7c478bd9Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24*7c478bd9Sstevel@tonic-gate * Use is subject to license terms. 25*7c478bd9Sstevel@tonic-gate */ 26*7c478bd9Sstevel@tonic-gate 27*7c478bd9Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 28*7c478bd9Sstevel@tonic-gate /* All Rights Reserved */ 29*7c478bd9Sstevel@tonic-gate 30*7c478bd9Sstevel@tonic-gate 31*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 32*7c478bd9Sstevel@tonic-gate /* EMACS_MODES: !fill, lnumb, !overwrite, !nodelete, !picture */ 33*7c478bd9Sstevel@tonic-gate 34*7c478bd9Sstevel@tonic-gate #include "stdio.h" 35*7c478bd9Sstevel@tonic-gate #include "fcntl.h" 36*7c478bd9Sstevel@tonic-gate #include "string.h" 37*7c478bd9Sstevel@tonic-gate #include "errno.h" 38*7c478bd9Sstevel@tonic-gate #include "pwd.h" 39*7c478bd9Sstevel@tonic-gate #include "sys/types.h" 40*7c478bd9Sstevel@tonic-gate #include "sys/stat.h" 41*7c478bd9Sstevel@tonic-gate #include "stdlib.h" 42*7c478bd9Sstevel@tonic-gate #include <stdarg.h> 43*7c478bd9Sstevel@tonic-gate #include <unistd.h> 44*7c478bd9Sstevel@tonic-gate #include "pwd.h" 45*7c478bd9Sstevel@tonic-gate 46*7c478bd9Sstevel@tonic-gate #include "lp.h" 47*7c478bd9Sstevel@tonic-gate 48*7c478bd9Sstevel@tonic-gate int 49*7c478bd9Sstevel@tonic-gate is_printer_uri(char *value) 50*7c478bd9Sstevel@tonic-gate { 51*7c478bd9Sstevel@tonic-gate if (value == NULL) 52*7c478bd9Sstevel@tonic-gate return (-1); 53*7c478bd9Sstevel@tonic-gate 54*7c478bd9Sstevel@tonic-gate if ((value[0] == '/') && (access(value, F_OK) == 0)) 55*7c478bd9Sstevel@tonic-gate return (-1); /* a valid path */ 56*7c478bd9Sstevel@tonic-gate 57*7c478bd9Sstevel@tonic-gate if (strstr(value, "://") == NULL) 58*7c478bd9Sstevel@tonic-gate return (-1); /* not in uri form */ 59*7c478bd9Sstevel@tonic-gate 60*7c478bd9Sstevel@tonic-gate return (0); 61*7c478bd9Sstevel@tonic-gate } 62*7c478bd9Sstevel@tonic-gate 63*7c478bd9Sstevel@tonic-gate fdprintf(int fd, char *fmt, ...) 64*7c478bd9Sstevel@tonic-gate { 65*7c478bd9Sstevel@tonic-gate char buf[BUFSIZ]; 66*7c478bd9Sstevel@tonic-gate va_list ap; 67*7c478bd9Sstevel@tonic-gate 68*7c478bd9Sstevel@tonic-gate if (fd == 1) 69*7c478bd9Sstevel@tonic-gate fflush(stdout); 70*7c478bd9Sstevel@tonic-gate va_start(ap, fmt); 71*7c478bd9Sstevel@tonic-gate vsnprintf(buf, sizeof (buf), fmt, ap); 72*7c478bd9Sstevel@tonic-gate va_end(ap); 73*7c478bd9Sstevel@tonic-gate return (Write(fd, buf, (int)strlen(buf))); 74*7c478bd9Sstevel@tonic-gate } 75*7c478bd9Sstevel@tonic-gate 76*7c478bd9Sstevel@tonic-gate char * 77*7c478bd9Sstevel@tonic-gate fdgets(char *buf, int len, int fd) 78*7c478bd9Sstevel@tonic-gate { 79*7c478bd9Sstevel@tonic-gate char tmp; 80*7c478bd9Sstevel@tonic-gate int count = 0; 81*7c478bd9Sstevel@tonic-gate 82*7c478bd9Sstevel@tonic-gate memset(buf, NULL, len); 83*7c478bd9Sstevel@tonic-gate while ((count < len) && (Read(fd, &tmp, 1) > 0)) 84*7c478bd9Sstevel@tonic-gate if ((buf[count++] = tmp) == '\n') break; 85*7c478bd9Sstevel@tonic-gate 86*7c478bd9Sstevel@tonic-gate if (count != 0) 87*7c478bd9Sstevel@tonic-gate return (buf); 88*7c478bd9Sstevel@tonic-gate return (NULL); 89*7c478bd9Sstevel@tonic-gate } 90*7c478bd9Sstevel@tonic-gate 91*7c478bd9Sstevel@tonic-gate fdputs(char *buf, int fd) 92*7c478bd9Sstevel@tonic-gate { 93*7c478bd9Sstevel@tonic-gate return (fdprintf(fd, "%s", buf)); 94*7c478bd9Sstevel@tonic-gate } 95*7c478bd9Sstevel@tonic-gate 96*7c478bd9Sstevel@tonic-gate fdputc(char c, int fd) 97*7c478bd9Sstevel@tonic-gate { 98*7c478bd9Sstevel@tonic-gate if (fd == 1) 99*7c478bd9Sstevel@tonic-gate fflush(stdout); 100*7c478bd9Sstevel@tonic-gate return (write(fd, &c, 1)); 101*7c478bd9Sstevel@tonic-gate } 102*7c478bd9Sstevel@tonic-gate 103*7c478bd9Sstevel@tonic-gate 104*7c478bd9Sstevel@tonic-gate int 105*7c478bd9Sstevel@tonic-gate open_locked(char *path, char *type, mode_t mode) 106*7c478bd9Sstevel@tonic-gate { 107*7c478bd9Sstevel@tonic-gate struct flock l; 108*7c478bd9Sstevel@tonic-gate int fd, 109*7c478bd9Sstevel@tonic-gate oflag, 110*7c478bd9Sstevel@tonic-gate create, 111*7c478bd9Sstevel@tonic-gate truncate = 0; 112*7c478bd9Sstevel@tonic-gate 113*7c478bd9Sstevel@tonic-gate if (!path || !type) { 114*7c478bd9Sstevel@tonic-gate errno = EINVAL; 115*7c478bd9Sstevel@tonic-gate return (-1); 116*7c478bd9Sstevel@tonic-gate } 117*7c478bd9Sstevel@tonic-gate 118*7c478bd9Sstevel@tonic-gate #define plus (type[1] == '+') 119*7c478bd9Sstevel@tonic-gate switch (type[0]) { 120*7c478bd9Sstevel@tonic-gate case 'w': 121*7c478bd9Sstevel@tonic-gate oflag = plus? O_RDWR : O_WRONLY; 122*7c478bd9Sstevel@tonic-gate create = 1; 123*7c478bd9Sstevel@tonic-gate truncate = 1; 124*7c478bd9Sstevel@tonic-gate break; 125*7c478bd9Sstevel@tonic-gate case 'a': 126*7c478bd9Sstevel@tonic-gate oflag = (plus? O_RDWR : O_WRONLY) | O_APPEND; 127*7c478bd9Sstevel@tonic-gate create = 1; 128*7c478bd9Sstevel@tonic-gate break; 129*7c478bd9Sstevel@tonic-gate case 'r': 130*7c478bd9Sstevel@tonic-gate oflag = plus? O_RDWR : O_RDONLY; 131*7c478bd9Sstevel@tonic-gate create = 0; 132*7c478bd9Sstevel@tonic-gate break; 133*7c478bd9Sstevel@tonic-gate default: 134*7c478bd9Sstevel@tonic-gate errno = EINVAL; 135*7c478bd9Sstevel@tonic-gate return (-1); 136*7c478bd9Sstevel@tonic-gate } 137*7c478bd9Sstevel@tonic-gate if ((fd = Open(path, oflag, mode)) == -1) 138*7c478bd9Sstevel@tonic-gate if (errno == ENOENT && create) { 139*7c478bd9Sstevel@tonic-gate int old_umask = umask(0); 140*7c478bd9Sstevel@tonic-gate int save_errno; 141*7c478bd9Sstevel@tonic-gate 142*7c478bd9Sstevel@tonic-gate if ((fd = Open(path, oflag|O_CREAT, mode)) != -1) 143*7c478bd9Sstevel@tonic-gate chown_lppath(path); 144*7c478bd9Sstevel@tonic-gate save_errno = errno; 145*7c478bd9Sstevel@tonic-gate if (old_umask) 146*7c478bd9Sstevel@tonic-gate umask(old_umask); 147*7c478bd9Sstevel@tonic-gate errno = save_errno; 148*7c478bd9Sstevel@tonic-gate } 149*7c478bd9Sstevel@tonic-gate 150*7c478bd9Sstevel@tonic-gate if (fd == -1) 151*7c478bd9Sstevel@tonic-gate switch (errno) { 152*7c478bd9Sstevel@tonic-gate case ENOTDIR: 153*7c478bd9Sstevel@tonic-gate errno = EACCES; 154*7c478bd9Sstevel@tonic-gate /* FALLTHROUGH */ 155*7c478bd9Sstevel@tonic-gate default: 156*7c478bd9Sstevel@tonic-gate return (-1); 157*7c478bd9Sstevel@tonic-gate } 158*7c478bd9Sstevel@tonic-gate 159*7c478bd9Sstevel@tonic-gate l.l_type = (oflag & (O_WRONLY|O_RDWR)? F_WRLCK : F_RDLCK); 160*7c478bd9Sstevel@tonic-gate l.l_whence = 1; 161*7c478bd9Sstevel@tonic-gate l.l_start = 0; 162*7c478bd9Sstevel@tonic-gate l.l_len = 0; 163*7c478bd9Sstevel@tonic-gate if (Fcntl(fd, F_SETLK, &l) == -1) { 164*7c478bd9Sstevel@tonic-gate /* 165*7c478bd9Sstevel@tonic-gate * Early UNIX op. sys. have wrong errno. 166*7c478bd9Sstevel@tonic-gate */ 167*7c478bd9Sstevel@tonic-gate if (errno == EACCES) 168*7c478bd9Sstevel@tonic-gate errno = EAGAIN; 169*7c478bd9Sstevel@tonic-gate Close(fd); 170*7c478bd9Sstevel@tonic-gate return (-1); 171*7c478bd9Sstevel@tonic-gate } 172*7c478bd9Sstevel@tonic-gate 173*7c478bd9Sstevel@tonic-gate if (truncate) { 174*7c478bd9Sstevel@tonic-gate if ((lseek(fd, 0, SEEK_SET) == (off_t)-1) || 175*7c478bd9Sstevel@tonic-gate (ftruncate(fd, 0) == -1)) { 176*7c478bd9Sstevel@tonic-gate Close(fd); 177*7c478bd9Sstevel@tonic-gate return (-1); 178*7c478bd9Sstevel@tonic-gate } 179*7c478bd9Sstevel@tonic-gate } 180*7c478bd9Sstevel@tonic-gate 181*7c478bd9Sstevel@tonic-gate return (fd); 182*7c478bd9Sstevel@tonic-gate } 183*7c478bd9Sstevel@tonic-gate 184*7c478bd9Sstevel@tonic-gate 185*7c478bd9Sstevel@tonic-gate FILE * 186*7c478bd9Sstevel@tonic-gate open_lpfile(char *path, char *type, mode_t mode) 187*7c478bd9Sstevel@tonic-gate { 188*7c478bd9Sstevel@tonic-gate FILE *fp = NULL; 189*7c478bd9Sstevel@tonic-gate int fd; 190*7c478bd9Sstevel@tonic-gate 191*7c478bd9Sstevel@tonic-gate if ((fd = open_locked(path, type, mode)) >= 0) { 192*7c478bd9Sstevel@tonic-gate errno = 0; /* fdopen() may fail and not set errno */ 193*7c478bd9Sstevel@tonic-gate if (!(fp = fdopen(fd, type))) { 194*7c478bd9Sstevel@tonic-gate Close(fd); 195*7c478bd9Sstevel@tonic-gate } 196*7c478bd9Sstevel@tonic-gate } 197*7c478bd9Sstevel@tonic-gate return (fp); 198*7c478bd9Sstevel@tonic-gate } 199*7c478bd9Sstevel@tonic-gate int 200*7c478bd9Sstevel@tonic-gate close_lpfile(FILE *fp) 201*7c478bd9Sstevel@tonic-gate { 202*7c478bd9Sstevel@tonic-gate return (fclose(fp)); 203*7c478bd9Sstevel@tonic-gate } 204*7c478bd9Sstevel@tonic-gate 205*7c478bd9Sstevel@tonic-gate /* 206*7c478bd9Sstevel@tonic-gate * chown_lppath() 207*7c478bd9Sstevel@tonic-gate */ 208*7c478bd9Sstevel@tonic-gate 209*7c478bd9Sstevel@tonic-gate int 210*7c478bd9Sstevel@tonic-gate chown_lppath(char *path) 211*7c478bd9Sstevel@tonic-gate { 212*7c478bd9Sstevel@tonic-gate static uid_t lp_uid; 213*7c478bd9Sstevel@tonic-gate 214*7c478bd9Sstevel@tonic-gate static gid_t lp_gid; 215*7c478bd9Sstevel@tonic-gate 216*7c478bd9Sstevel@tonic-gate static int gotids = 0; 217*7c478bd9Sstevel@tonic-gate 218*7c478bd9Sstevel@tonic-gate struct passwd *ppw; 219*7c478bd9Sstevel@tonic-gate 220*7c478bd9Sstevel@tonic-gate 221*7c478bd9Sstevel@tonic-gate if (!gotids) { 222*7c478bd9Sstevel@tonic-gate if (!(ppw = getpwnam(LPUSER))) 223*7c478bd9Sstevel@tonic-gate ppw = getpwnam(ROOTUSER); 224*7c478bd9Sstevel@tonic-gate endpwent(); 225*7c478bd9Sstevel@tonic-gate if (!ppw) 226*7c478bd9Sstevel@tonic-gate return (-1); 227*7c478bd9Sstevel@tonic-gate lp_uid = ppw->pw_uid; 228*7c478bd9Sstevel@tonic-gate lp_gid = ppw->pw_gid; 229*7c478bd9Sstevel@tonic-gate gotids = 1; 230*7c478bd9Sstevel@tonic-gate } 231*7c478bd9Sstevel@tonic-gate return (Chown(path, lp_uid, lp_gid)); 232*7c478bd9Sstevel@tonic-gate } 233*7c478bd9Sstevel@tonic-gate 234*7c478bd9Sstevel@tonic-gate /* 235*7c478bd9Sstevel@tonic-gate * rmfile() - UNLINK FILE BUT NO COMPLAINT IF NOT THERE 236*7c478bd9Sstevel@tonic-gate */ 237*7c478bd9Sstevel@tonic-gate 238*7c478bd9Sstevel@tonic-gate int 239*7c478bd9Sstevel@tonic-gate rmfile(char *path) 240*7c478bd9Sstevel@tonic-gate { 241*7c478bd9Sstevel@tonic-gate return (Unlink(path) == 0 || errno == ENOENT); 242*7c478bd9Sstevel@tonic-gate } 243*7c478bd9Sstevel@tonic-gate 244*7c478bd9Sstevel@tonic-gate /* 245*7c478bd9Sstevel@tonic-gate * loadline() - LOAD A ONE-LINE CHARACTER STRING FROM FILE 246*7c478bd9Sstevel@tonic-gate */ 247*7c478bd9Sstevel@tonic-gate 248*7c478bd9Sstevel@tonic-gate char * 249*7c478bd9Sstevel@tonic-gate loadline(char *path) 250*7c478bd9Sstevel@tonic-gate { 251*7c478bd9Sstevel@tonic-gate int fd; 252*7c478bd9Sstevel@tonic-gate register char *ret; 253*7c478bd9Sstevel@tonic-gate register int len; 254*7c478bd9Sstevel@tonic-gate char buf[BUFSIZ]; 255*7c478bd9Sstevel@tonic-gate 256*7c478bd9Sstevel@tonic-gate if ((fd = open_locked(path, "r", MODE_READ)) < 0) 257*7c478bd9Sstevel@tonic-gate return (0); 258*7c478bd9Sstevel@tonic-gate 259*7c478bd9Sstevel@tonic-gate if (fdgets(buf, BUFSIZ, fd)) { 260*7c478bd9Sstevel@tonic-gate if ((len = strlen(buf)) && buf[len - 1] == '\n') 261*7c478bd9Sstevel@tonic-gate buf[--len] = 0; 262*7c478bd9Sstevel@tonic-gate if ((ret = Malloc(len + 1))) 263*7c478bd9Sstevel@tonic-gate strcpy(ret, buf); 264*7c478bd9Sstevel@tonic-gate } else { 265*7c478bd9Sstevel@tonic-gate errno = 0; 266*7c478bd9Sstevel@tonic-gate ret = 0; 267*7c478bd9Sstevel@tonic-gate } 268*7c478bd9Sstevel@tonic-gate 269*7c478bd9Sstevel@tonic-gate close(fd); 270*7c478bd9Sstevel@tonic-gate return (ret); 271*7c478bd9Sstevel@tonic-gate } 272*7c478bd9Sstevel@tonic-gate 273*7c478bd9Sstevel@tonic-gate /* 274*7c478bd9Sstevel@tonic-gate * loadstring() - LOAD A CHARACTER STRING FROM FILE 275*7c478bd9Sstevel@tonic-gate */ 276*7c478bd9Sstevel@tonic-gate 277*7c478bd9Sstevel@tonic-gate char * 278*7c478bd9Sstevel@tonic-gate loadstring(char *path) 279*7c478bd9Sstevel@tonic-gate { 280*7c478bd9Sstevel@tonic-gate int fd; 281*7c478bd9Sstevel@tonic-gate register char *ret; 282*7c478bd9Sstevel@tonic-gate register int len; 283*7c478bd9Sstevel@tonic-gate 284*7c478bd9Sstevel@tonic-gate if ((fd = open_locked(path, "r", MODE_READ)) < 0) 285*7c478bd9Sstevel@tonic-gate return (0); 286*7c478bd9Sstevel@tonic-gate 287*7c478bd9Sstevel@tonic-gate if ((ret = sop_up_rest(fd, (char *)0))) { 288*7c478bd9Sstevel@tonic-gate if ((len = strlen(ret)) && ret[len - 1] == '\n') 289*7c478bd9Sstevel@tonic-gate ret[len - 1] = 0; 290*7c478bd9Sstevel@tonic-gate } else 291*7c478bd9Sstevel@tonic-gate errno = 0; 292*7c478bd9Sstevel@tonic-gate 293*7c478bd9Sstevel@tonic-gate close(fd); 294*7c478bd9Sstevel@tonic-gate return (ret); 295*7c478bd9Sstevel@tonic-gate } 296*7c478bd9Sstevel@tonic-gate 297*7c478bd9Sstevel@tonic-gate /* 298*7c478bd9Sstevel@tonic-gate * dumpstring() - DUMP CHARACTER STRING TO FILE 299*7c478bd9Sstevel@tonic-gate */ 300*7c478bd9Sstevel@tonic-gate 301*7c478bd9Sstevel@tonic-gate int 302*7c478bd9Sstevel@tonic-gate dumpstring(char *path, char *str) 303*7c478bd9Sstevel@tonic-gate { 304*7c478bd9Sstevel@tonic-gate int fd; 305*7c478bd9Sstevel@tonic-gate 306*7c478bd9Sstevel@tonic-gate if (!str) 307*7c478bd9Sstevel@tonic-gate return (rmfile(path)); 308*7c478bd9Sstevel@tonic-gate 309*7c478bd9Sstevel@tonic-gate if ((fd = open_locked(path, "w", MODE_READ)) < 0) 310*7c478bd9Sstevel@tonic-gate return (-1); 311*7c478bd9Sstevel@tonic-gate fdprintf(fd, "%s\n", str); 312*7c478bd9Sstevel@tonic-gate close(fd); 313*7c478bd9Sstevel@tonic-gate return (0); 314*7c478bd9Sstevel@tonic-gate } 315