spec.c revision 1.10
1217309Snwhitehorn/* $NetBSD: spec.c,v 1.10 1997/10/17 05:24:32 mrg Exp $ */ 2251843Sbapt 3217309Snwhitehorn/*- 4217309Snwhitehorn * Copyright (c) 1989, 1993 5217309Snwhitehorn * The Regents of the University of California. All rights reserved. 6217309Snwhitehorn * 7251843Sbapt * Redistribution and use in source and binary forms, with or without 8217309Snwhitehorn * modification, are permitted provided that the following conditions 9217309Snwhitehorn * are met: 10217309Snwhitehorn * 1. Redistributions of source code must retain the above copyright 11217309Snwhitehorn * notice, this list of conditions and the following disclaimer. 12217309Snwhitehorn * 2. Redistributions in binary form must reproduce the above copyright 13217309Snwhitehorn * notice, this list of conditions and the following disclaimer in the 14217309Snwhitehorn * documentation and/or other materials provided with the distribution. 15217309Snwhitehorn * 3. All advertising materials mentioning features or use of this software 16217309Snwhitehorn * must display the following acknowledgement: 17217309Snwhitehorn * This product includes software developed by the University of 18217309Snwhitehorn * California, Berkeley and its contributors. 19217309Snwhitehorn * 4. Neither the name of the University nor the names of its contributors 20217309Snwhitehorn * may be used to endorse or promote products derived from this software 21217309Snwhitehorn * without specific prior written permission. 22217309Snwhitehorn * 23217309Snwhitehorn * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24217309Snwhitehorn * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25217309Snwhitehorn * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26217309Snwhitehorn * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27217309Snwhitehorn * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28217309Snwhitehorn * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29217309Snwhitehorn * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30217309Snwhitehorn * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31217309Snwhitehorn * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32217309Snwhitehorn * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33217309Snwhitehorn * SUCH DAMAGE. 34217309Snwhitehorn */ 35217309Snwhitehorn 36217309Snwhitehorn#ifndef lint 37217309Snwhitehorn#if 0 38217309Snwhitehornstatic char sccsid[] = "@(#)spec.c 8.2 (Berkeley) 4/28/95"; 39217309Snwhitehorn#else 40217309Snwhitehornstatic char rcsid[] = "$NetBSD: spec.c,v 1.10 1997/10/17 05:24:32 mrg Exp $"; 41217309Snwhitehorn#endif 42217309Snwhitehorn#endif /* not lint */ 43217309Snwhitehorn 44217309Snwhitehorn#include <sys/types.h> 45217309Snwhitehorn#include <sys/stat.h> 46217309Snwhitehorn#include <fts.h> 47217309Snwhitehorn#include <pwd.h> 48217309Snwhitehorn#include <grp.h> 49251843Sbapt#include <errno.h> 50217309Snwhitehorn#include <unistd.h> 51217309Snwhitehorn#include <stdio.h> 52217309Snwhitehorn#include <ctype.h> 53217309Snwhitehorn#include "mtree.h" 54217309Snwhitehorn#include "extern.h" 55217309Snwhitehorn 56217309Snwhitehornint lineno; /* Current spec line number. */ 57217309Snwhitehorn 58217309Snwhitehornstatic void set __P((char *, NODE *)); 59217309Snwhitehornstatic void unset __P((char *, NODE *)); 60217309Snwhitehorn 61217309SnwhitehornNODE * 62251843Sbaptspec() 63251843Sbapt{ 64217309Snwhitehorn register NODE *centry, *last; 65217309Snwhitehorn register char *p; 66217309Snwhitehorn NODE ginfo, *root; 67217309Snwhitehorn int c_cur, c_next; 68251843Sbapt char buf[2048]; 69217309Snwhitehorn 70251843Sbapt root = NULL; 71251843Sbapt bzero(&ginfo, sizeof(ginfo)); 72251843Sbapt c_cur = c_next = 0; 73251843Sbapt for (lineno = 1; fgets(buf, sizeof(buf), stdin); 74217309Snwhitehorn ++lineno, c_cur = c_next, c_next = 0) { 75217309Snwhitehorn /* Skip empty lines. */ 76217309Snwhitehorn if (buf[0] == '\n') 77217309Snwhitehorn continue; 78217309Snwhitehorn 79217309Snwhitehorn /* Find end of line. */ 80217309Snwhitehorn if ((p = index(buf, '\n')) == NULL) 81217309Snwhitehorn err("line %d too long", lineno); 82217309Snwhitehorn 83217309Snwhitehorn /* See if next line is continuation line. */ 84217309Snwhitehorn if (p[-1] == '\\') { 85217309Snwhitehorn --p; 86217309Snwhitehorn c_next = 1; 87217309Snwhitehorn } 88217309Snwhitehorn 89217309Snwhitehorn /* Null-terminate the line. */ 90217309Snwhitehorn *p = '\0'; 91217309Snwhitehorn 92217309Snwhitehorn /* Skip leading whitespace. */ 93217309Snwhitehorn for (p = buf; *p && isspace(*p); ++p); 94217309Snwhitehorn 95217309Snwhitehorn /* If nothing but whitespace or comment char, continue. */ 96217309Snwhitehorn if (!*p || *p == '#') 97217309Snwhitehorn continue; 98217309Snwhitehorn 99217309Snwhitehorn#ifdef DEBUG 100217309Snwhitehorn (void)fprintf(stderr, "line %d: {%s}\n", lineno, p); 101217309Snwhitehorn#endif 102217309Snwhitehorn if (c_cur) { 103217309Snwhitehorn set(p, centry); 104217309Snwhitehorn continue; 105251843Sbapt } 106217309Snwhitehorn 107217309Snwhitehorn /* Grab file name, "$", "set", or "unset". */ 108217309Snwhitehorn if ((p = strtok(p, "\n\t ")) == NULL) 109217309Snwhitehorn err("missing field"); 110217309Snwhitehorn 111220749Snwhitehorn if (p[0] == '/') 112220749Snwhitehorn switch(p[1]) { 113220749Snwhitehorn case 's': 114220749Snwhitehorn if (strcmp(p + 1, "set")) 115220749Snwhitehorn break; 116224014Snwhitehorn set(NULL, &ginfo); 117220749Snwhitehorn continue; 118251843Sbapt case 'u': 119220749Snwhitehorn if (strcmp(p + 1, "unset")) 120220749Snwhitehorn break; 121220749Snwhitehorn unset(NULL, &ginfo); 122220749Snwhitehorn continue; 123251843Sbapt } 124220749Snwhitehorn 125220749Snwhitehorn if (index(p, '/')) 126220749Snwhitehorn err("slash character in file name"); 127220749Snwhitehorn 128251843Sbapt if (!strcmp(p, "..")) { 129251843Sbapt /* Don't go up, if haven't gone down. */ 130220749Snwhitehorn if (!root) 131251843Sbapt goto noparent; 132251843Sbapt if (last->type != F_DIR || last->flags & F_DONE) { 133251843Sbapt if (last == root) 134220749Snwhitehorn goto noparent; 135220749Snwhitehorn last = last->parent; 136220749Snwhitehorn } 137251843Sbapt last->flags |= F_DONE; 138220749Snwhitehorn continue; 139220749Snwhitehorn 140220749Snwhitehornnoparent: err("no parent node"); 141251843Sbapt } 142251843Sbapt 143251843Sbapt if ((centry = calloc(1, sizeof(NODE) + strlen(p))) == NULL) 144251843Sbapt err("%s", strerror(errno)); 145251843Sbapt *centry = ginfo; 146251843Sbapt (void)strcpy(centry->name, p); 147251843Sbapt#define MAGIC "?*[" 148251843Sbapt if (strpbrk(p, MAGIC)) 149251843Sbapt centry->flags |= F_MAGIC; 150251843Sbapt set(NULL, centry); 151220749Snwhitehorn 152220749Snwhitehorn if (!root) { 153220749Snwhitehorn last = root = centry; 154220749Snwhitehorn root->parent = root; 155220749Snwhitehorn } else if (last->type == F_DIR && !(last->flags & F_DONE)) { 156251843Sbapt centry->parent = last; 157220749Snwhitehorn last = last->child = centry; 158220749Snwhitehorn } else { 159220749Snwhitehorn centry->parent = last->parent; 160220749Snwhitehorn centry->prev = last; 161220749Snwhitehorn last = last->next = centry; 162251843Sbapt } 163251843Sbapt } 164251843Sbapt return (root); 165220749Snwhitehorn} 166251843Sbapt 167251843Sbaptstatic void 168251843Sbaptset(t, ip) 169220749Snwhitehorn char *t; 170251843Sbapt register NODE *ip; 171251843Sbapt{ 172220749Snwhitehorn register int type; 173220749Snwhitehorn register char *kw, *val; 174251843Sbapt struct group *gr; 175251843Sbapt struct passwd *pw; 176251843Sbapt mode_t *m; 177251843Sbapt int value; 178251843Sbapt char *ep; 179251843Sbapt 180251843Sbapt for (; (kw = strtok(t, "= \t\n")) != NULL; t = NULL) { 181220749Snwhitehorn ip->flags |= type = parsekey(kw, &value); 182220749Snwhitehorn if (value && (val = strtok(NULL, " \t\n")) == NULL) 183251843Sbapt err("missing value"); 184220749Snwhitehorn switch(type) { 185220749Snwhitehorn case F_CKSUM: 186220749Snwhitehorn ip->cksum = strtoul(val, &ep, 10); 187220749Snwhitehorn if (*ep) 188220749Snwhitehorn err("invalid checksum %s", val); 189251843Sbapt break; 190251843Sbapt case F_GID: 191220749Snwhitehorn ip->st_gid = (gid_t)strtoul(val, &ep, 10); 192220749Snwhitehorn if (*ep) 193220749Snwhitehorn err("invalid gid %s", val); 194217309Snwhitehorn break; 195220749Snwhitehorn case F_GNAME: 196220749Snwhitehorn if ((gr = getgrnam(val)) == NULL) 197220749Snwhitehorn err("unknown group %s", val); 198220749Snwhitehorn ip->st_gid = gr->gr_gid; 199220749Snwhitehorn break; 200220749Snwhitehorn case F_IGN: 201217309Snwhitehorn /* just set flag bit */ 202217309Snwhitehorn break; 203217309Snwhitehorn case F_MODE: 204217309Snwhitehorn if ((m = setmode(val)) == NULL) 205217309Snwhitehorn err("invalid file mode %s", val); 206217309Snwhitehorn ip->st_mode = getmode(m, 0); 207220749Snwhitehorn break; 208217309Snwhitehorn case F_NLINK: 209217309Snwhitehorn ip->st_nlink = (nlink_t)strtoul(val, &ep, 10); 210217309Snwhitehorn if (*ep) 211217309Snwhitehorn err("invalid link count %s", val); 212217309Snwhitehorn break; 213217309Snwhitehorn case F_SIZE: 214217309Snwhitehorn ip->st_size = (off_t)strtoq(val, &ep, 10); 215217309Snwhitehorn if (*ep) 216217309Snwhitehorn err("invalid size %s", val); 217217309Snwhitehorn break; 218217309Snwhitehorn case F_SLINK: 219217309Snwhitehorn if ((ip->slink = strdup(val)) == NULL) 220251843Sbapt err("%s", strerror(errno)); 221217309Snwhitehorn break; 222224014Snwhitehorn case F_TIME: 223217309Snwhitehorn ip->st_mtimespec.tv_sec = 224217309Snwhitehorn (time_t)strtoul(val, &ep, 10); 225217309Snwhitehorn if (*ep != '.') 226217309Snwhitehorn err("invalid time %s", val); 227251843Sbapt val = ep + 1; 228217309Snwhitehorn ip->st_mtimespec.tv_nsec = strtol(val, &ep, 10); 229217309Snwhitehorn if (*ep) 230251843Sbapt err("invalid time %s", val); 231217309Snwhitehorn break; 232217309Snwhitehorn case F_TYPE: 233217309Snwhitehorn switch(*val) { 234217309Snwhitehorn case 'b': 235217309Snwhitehorn if (!strcmp(val, "block")) 236217309Snwhitehorn ip->type = F_BLOCK; 237217309Snwhitehorn break; 238217309Snwhitehorn case 'c': 239217309Snwhitehorn if (!strcmp(val, "char")) 240217309Snwhitehorn ip->type = F_CHAR; 241217309Snwhitehorn break; 242217309Snwhitehorn case 'd': 243217309Snwhitehorn if (!strcmp(val, "dir")) 244217309Snwhitehorn ip->type = F_DIR; 245217309Snwhitehorn break; 246217309Snwhitehorn case 'f': 247217309Snwhitehorn if (!strcmp(val, "file")) 248217309Snwhitehorn ip->type = F_FILE; 249217309Snwhitehorn if (!strcmp(val, "fifo")) 250217309Snwhitehorn ip->type = F_FIFO; 251217309Snwhitehorn break; 252220749Snwhitehorn case 'l': 253217309Snwhitehorn if (!strcmp(val, "link")) 254220749Snwhitehorn ip->type = F_LINK; 255217309Snwhitehorn break; 256217309Snwhitehorn case 's': 257217309Snwhitehorn if (!strcmp(val, "socket")) 258217309Snwhitehorn ip->type = F_SOCK; 259217309Snwhitehorn break; 260217309Snwhitehorn default: 261217309Snwhitehorn err("unknown file type %s", val); 262217309Snwhitehorn } 263217309Snwhitehorn break; 264217309Snwhitehorn case F_UID: 265217309Snwhitehorn ip->st_uid = (uid_t)strtoul(val, &ep, 10); 266217309Snwhitehorn if (*ep) 267217309Snwhitehorn err("invalid uid %s", val); 268217309Snwhitehorn break; 269251843Sbapt case F_UNAME: 270217309Snwhitehorn if ((pw = getpwnam(val)) == NULL) 271217309Snwhitehorn err("unknown user %s", val); 272217309Snwhitehorn ip->st_uid = pw->pw_uid; 273220749Snwhitehorn break; 274220749Snwhitehorn } 275220749Snwhitehorn } 276220749Snwhitehorn} 277220749Snwhitehorn 278220749Snwhitehornstatic void 279220749Snwhitehornunset(t, ip) 280220749Snwhitehorn char *t; 281220749Snwhitehorn register NODE *ip; 282220749Snwhitehorn{ 283220749Snwhitehorn register char *p; 284217309Snwhitehorn 285217309Snwhitehorn while ((p = strtok(t, "\n\t ")) != NULL) 286217309Snwhitehorn ip->flags &= ~parsekey(p, NULL); 287217309Snwhitehorn} 288251843Sbapt