/* * Read an ascii label in from FILE f, * in the same format as that put out by display(), * and fill in lp. */ int getasciilabel(FILE *f, struct disklabel *lp) { char **cpp, *cp; const char *errstr; struct partition *pp; char *tp, *s, line[BUFSIZ]; int lineno = 0, errors = 0; u_int32_t v, fsize; u_int64_t lv; lp->d_version = 1; lp->d_bbsize = BBSIZE; /* XXX */ lp->d_sbsize = SBSIZE; /* XXX */ while (fgets(line, sizeof(line), f)) { lineno++; if ((cp = strpbrk(line, "#\r\n"))) *cp = '\0'; cp = skip(line); if (cp == NULL) continue; tp = strchr(cp, ':'); if (tp == NULL) { warnx("line %d: syntax error", lineno); errors++; continue; } *tp++ = '\0', tp = skip(tp); if (!strcmp(cp, "type")) { if (tp == NULL) tp = "unknown"; else if (strcasecmp(tp, "IDE") == 0) tp = "ESDI"; cpp = dktypenames; for (; cpp < &dktypenames[DKMAXTYPES]; cpp++) if ((s = *cpp) && !strcasecmp(s, tp)) { lp->d_type = cpp - dktypenames; goto next; } v = GETNUM(lp->d_type, tp, 0, &errstr); if (errstr || v >= DKMAXTYPES) warnx("line %d: warning, unknown disk type: %s", lineno, tp); lp->d_type = v; continue; } if (!strcmp(cp, "flags")) { for (v = 0; (cp = tp) && *cp != '\0';) { tp = word(cp); if (!strcmp(cp, "badsect")) v |= D_BADSECT; else if (!strcmp(cp, "vendor")) v |= D_VENDOR; else { warnx("line %d: bad flag: %s", lineno, cp); errors++; } } lp->d_flags = v; continue; } if (!strcmp(cp, "drivedata")) { int i; for (i = 0; (cp = tp) && *cp != '\0' && i < NDDATA;) { v = GETNUM(lp->d_drivedata[i], cp, 0, &errstr); if (errstr) warnx("line %d: bad drivedata %s", lineno, cp); lp->d_drivedata[i++] = v; tp = word(cp); } continue; } if (sscanf(cp, "%d partitions", &v) == 1) { if (v == 0 || v > MAXPARTITIONS) { warnx("line %d: bad # of partitions", lineno); lp->d_npartitions = MAXPARTITIONS; errors++; } else lp->d_npartitions = v; continue; } if (tp == NULL) tp = ""; if (!strcmp(cp, "disk")) { strncpy(lp->d_typename, tp, sizeof (lp->d_typename)); continue; } if (!strcmp(cp, "label")) { strncpy(lp->d_packname, tp, sizeof (lp->d_packname)); continue; } if (!strcmp(cp, "duid")) { if (duid_parse(lp, tp) != 0) { warnx("line %d: bad %s: %s", lineno, cp, tp); errors++; } continue; } if (!strcmp(cp, "bytes/sector")) { v = GETNUM(lp->d_secsize, tp, 1, &errstr); if (errstr || (v % 512) != 0) { warnx("line %d: bad %s: %s", lineno, cp, tp); errors++; } else lp->d_secsize = v; continue; } if (!strcmp(cp, "sectors/track")) { v = GETNUM(lp->d_nsectors, tp, 1, &errstr); if (errstr) { warnx("line %d: bad %s: %s", lineno, cp, tp); errors++; } else lp->d_nsectors = v; continue; } if (!strcmp(cp, "sectors/cylinder")) { v = GETNUM(lp->d_secpercyl, tp, 1, &errstr); if (errstr) { warnx("line %d: bad %s: %s", lineno, cp, tp); errors++; } else lp->d_secpercyl = v; continue; } if (!strcmp(cp, "tracks/cylinder")) { v = GETNUM(lp->d_ntracks, tp, 1, &errstr); if (errstr) { warnx("line %d: bad %s: %s", lineno, cp, tp); errors++; } else lp->d_ntracks = v; continue; } if (!strcmp(cp, "cylinders")) { v = GETNUM(lp->d_ncylinders, tp, 1, &errstr); if (errstr) { warnx("line %d: bad %s: %s", lineno, cp, tp); errors++; } else lp->d_ncylinders = v; continue; } if (!strcmp(cp, "total sectors")) { lv = GETNUM(lv, tp, 1, &errstr); if (errstr) { warnx("line %d: bad %s: %s", lineno, cp, tp); errors++; } else { DL_SETDSIZE(lp, lv); } continue; } /* Ignore fields that are no longer in the disklabel. */ if (!strcmp(cp, "rpm") || !strcmp(cp, "interleave") || !strcmp(cp, "trackskew") || !strcmp(cp, "cylinderskew") || !strcmp(cp, "headswitch") || !strcmp(cp, "track-to-track seek")) continue; /* Ignore fields that are forcibly set when label is read. */ if (!strcmp(cp, "total sectors") || !strcmp(cp, "boundstart") || !strcmp(cp, "boundend")) continue; if ('a' <= *cp && *cp <= 'z' && cp[1] == '\0') { unsigned int part = *cp - 'a'; if (part >= lp->d_npartitions) { if (part >= MAXPARTITIONS) { warnx("line %d: bad partition name: %s", lineno, cp); errors++; continue; } else { lp->d_npartitions = part + 1; } } pp = &lp->d_partitions[part]; #define NXTNUM(n, field, errstr) { \ if (tp == NULL) { \ warnx("line %d: too few fields", lineno); \ errors++; \ break; \ } else \ cp = tp, tp = word(cp), (n) = GETNUM(field, cp, 0, errstr); \ } NXTNUM(lv, lv, &errstr); if (errstr) { warnx("line %d: bad partition size: %s", lineno, cp); errors++; } else { DL_SETPSIZE(pp, lv); } NXTNUM(lv, lv, &errstr); if (errstr) { warnx("line %d: bad partition offset: %s", lineno, cp); errors++; } else { DL_SETPOFFSET(pp, lv); } if (tp == NULL) { pp->p_fstype = FS_UNUSED; goto gottype; } cp = tp, tp = word(cp); cpp = fstypenames; for (; cpp < &fstypenames[FSMAXTYPES]; cpp++) if ((s = *cpp) && !strcasecmp(s, cp)) { pp->p_fstype = cpp - fstypenames; goto gottype; } if (isdigit((unsigned char)*cp)) v = GETNUM(pp->p_fstype, cp, 0, &errstr); else v = FSMAXTYPES; if (errstr || v >= FSMAXTYPES) { warnx("line %d: warning, unknown filesystem type: %s", lineno, cp); v = FS_UNUSED; } pp->p_fstype = v; gottype: switch (pp->p_fstype) { case FS_UNUSED: /* XXX */ if (tp == NULL) /* ok to skip fsize/bsize */ break; NXTNUM(fsize, fsize, &errstr); if (fsize == 0) break; NXTNUM(v, v, &errstr); pp->p_fragblock = DISKLABELV1_FFS_FRAGBLOCK(fsize, v / fsize); break; case FS_BSDFFS: NXTNUM(fsize, fsize, &errstr); if (fsize == 0) break; NXTNUM(v, v, &errstr); pp->p_fragblock = DISKLABELV1_FFS_FRAGBLOCK(fsize, v / fsize); NXTNUM(pp->p_cpg, pp->p_cpg, &errstr); break; default: break; } continue; } warnx("line %d: unknown field: %s", lineno, cp); errors++; next: ; } errors += checklabel(lp); return (errors > 0); }
/* * Read a partition line into partition `part' in the specified disklabel. * Return 0 on success, 1 on failure. */ static int getasciipartspec(char *tp, struct disklabel *lp, int part, int lineno) { struct partition *pp; char *cp, *endp; const char **cpp; u_long v; pp = &lp->d_partitions[part]; cp = NULL; v = 0; NXTWORD(part_size_type[part],v); if (v == 0 && part_size_type[part] != '*') { fprintf(stderr, "line %d: %s: bad partition size\n", lineno, cp); return (1); } pp->p_size = v; v = 0; NXTWORD(part_offset_type[part],v); if (v == 0 && part_offset_type[part] != '*' && part_offset_type[part] != '\0') { fprintf(stderr, "line %d: %s: bad partition offset\n", lineno, cp); return (1); } pp->p_offset = v; if (tp == NULL) { fprintf(stderr, "line %d: missing file system type\n", lineno); return (1); } cp = tp, tp = word(cp); for (cpp = fstypenames; cpp < &fstypenames[FSMAXTYPES]; cpp++) if (*cpp && !strcmp(*cpp, cp)) break; if (*cpp != NULL) { pp->p_fstype = cpp - fstypenames; } else { if (isdigit(*cp)) { errno = 0; v = strtoul(cp, &endp, 10); if (errno != 0 || *endp != '\0') v = FSMAXTYPES; } else v = FSMAXTYPES; if (v >= FSMAXTYPES) { fprintf(stderr, "line %d: Warning, unknown file system type %s\n", lineno, cp); v = FS_UNUSED; } pp->p_fstype = v; } switch (pp->p_fstype) { case FS_UNUSED: case FS_BSDFFS: case FS_BSDLFS: /* accept defaults for fsize/frag/cpg */ if (tp) { NXTNUM(pp->p_fsize); if (pp->p_fsize == 0) break; NXTNUM(v); pp->p_frag = v / pp->p_fsize; if (tp != NULL) NXTNUM(pp->p_cpg); } /* else default to 0's */ break; default: break; } return (0); }