/* $NetBSD: spec.c,v 1.6 1995/03/07 21:12:12 cgd Exp $ */ /* $OpenBSD: spec.c,v 1.6 1997/01/17 07:14:10 millert Exp $ */ /*- * Copyright (c) 1989, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef lint #if 0 static char sccsid[] = "@(#)spec.c 8.1 (Berkeley) 6/6/93"; #else static char rcsid[] = "$OpenBSD: spec.c,v 1.6 1997/01/17 07:14:10 millert Exp $"; #endif #endif /* not lint */ #include #include #include #include #include #include #include #include #include #include "mtree.h" #include "extern.h" int lineno; /* Current spec line number. */ static void set __P((char *, NODE *)); static void unset __P((char *, NODE *)); NODE * spec() { register NODE *centry, *last; register char *p; NODE ginfo, *root; int c_cur, c_next; char buf[2048]; centry = last = root = NULL; bzero(&ginfo, sizeof(ginfo)); c_cur = c_next = 0; for (lineno = 1; fgets(buf, sizeof(buf), stdin); ++lineno, c_cur = c_next, c_next = 0) { /* Skip empty lines. */ if (buf[0] == '\n') continue; /* Find end of line. */ if ((p = strchr(buf, '\n')) == NULL) err("line %d too long", lineno); /* See if next line is continuation line. */ if (p[-1] == '\\') { --p; c_next = 1; } /* Null-terminate the line. */ *p = '\0'; /* Skip leading whitespace. */ for (p = buf; *p && isspace(*p); ++p); /* If nothing but whitespace or comment char, continue. */ if (!*p || *p == '#') continue; #ifdef DEBUG (void)fprintf(stderr, "line %d: {%s}\n", lineno, p); #endif if (c_cur) { set(p, centry); continue; } /* Grab file name, "$", "set", or "unset". */ if ((p = strtok(p, "\n\t ")) == NULL) err("missing field"); if (p[0] == '/') switch(p[1]) { case 's': if (strcmp(p + 1, "set")) break; set(NULL, &ginfo); continue; case 'u': if (strcmp(p + 1, "unset")) break; unset(NULL, &ginfo); continue; } if (strchr(p, '/')) err("slash character in file name"); if (!strcmp(p, "..")) { /* Don't go up, if haven't gone down. */ if (!root) goto noparent; if (last->type != F_DIR || last->flags & F_DONE) { if (last == root) goto noparent; last = last->parent; } last->flags |= F_DONE; continue; noparent: err("no parent node"); } if ((centry = calloc(1, sizeof(NODE) + strlen(p))) == NULL) err("%s", strerror(errno)); *centry = ginfo; (void)strcpy(centry->name, p); #define MAGIC "?*[" if (strpbrk(p, MAGIC)) centry->flags |= F_MAGIC; set(NULL, centry); if (!root) { last = root = centry; root->parent = root; } else if (last->type == F_DIR && !(last->flags & F_DONE)) { centry->parent = last; last = last->child = centry; } else { centry->parent = last->parent; centry->prev = last; last = last->next = centry; } } return (root); } static void set(t, ip) char *t; register NODE *ip; { register int type; register char *kw, *val = NULL; struct group *gr; struct passwd *pw; mode_t *m; int value; char *ep; for (; (kw = strtok(t, "= \t\n")); t = NULL) { ip->flags |= type = parsekey(kw, &value); if (value && (val = strtok(NULL, " \t\n")) == NULL) err("missing value"); switch(type) { case F_CKSUM: ip->cksum = strtoul(val, &ep, 10); if (*ep) err("invalid checksum %s", val); break; case F_MD5: ip->md5digest = strdup(val); if (!ip->md5digest) { err("%s", strerror(errno)); } break; case F_GID: ip->st_gid = strtoul(val, &ep, 10); if (*ep) err("invalid gid %s", val); break; case F_GNAME: if ((gr = getgrnam(val)) == NULL) err("unknown group %s", val); ip->st_gid = gr->gr_gid; break; case F_IGN: /* just set flag bit */ break; case F_MODE: if ((m = setmode(val)) == NULL) err("invalid file mode %s", val); ip->st_mode = getmode(m, 0); break; case F_NLINK: ip->st_nlink = strtoul(val, &ep, 10); if (*ep) err("invalid link count %s", val); break; case F_SIZE: ip->st_size = strtouq(val, &ep, 10); if (*ep) err("invalid size %s", val); break; case F_SLINK: if ((ip->slink = strdup(val)) == NULL) err("%s", strerror(errno)); break; case F_TIME: ip->st_mtimespec.tv_sec = strtoul(val, &ep, 10); if (*ep != '.') err("invalid time %s", val); val = ep + 1; ip->st_mtimespec.tv_nsec = strtoul(val, &ep, 10); if (*ep) err("invalid time %s", val); break; case F_TYPE: switch(*val) { case 'b': if (!strcmp(val, "block")) ip->type = F_BLOCK; break; case 'c': if (!strcmp(val, "char")) ip->type = F_CHAR; break; case 'd': if (!strcmp(val, "dir")) ip->type = F_DIR; break; case 'f': if (!strcmp(val, "file")) ip->type = F_FILE; if (!strcmp(val, "fifo")) ip->type = F_FIFO; break; case 'l': if (!strcmp(val, "link")) ip->type = F_LINK; break; case 's': if (!strcmp(val, "socket")) ip->type = F_SOCK; break; default: err("unknown file type %s", val); } break; case F_UID: ip->st_uid = strtoul(val, &ep, 10); if (*ep) err("invalid uid %s", val); break; case F_UNAME: if ((pw = getpwnam(val)) == NULL) err("unknown user %s", val); ip->st_uid = pw->pw_uid; break; } } } static void unset(t, ip) char *t; register NODE *ip; { register char *p; while ((p = strtok(t, "\n\t "))) ip->flags &= ~parsekey(p, NULL); }