12 # include <sys/types.h>
18 #define STRALLOC_INIT { 0 }
20 static int probe(int cdb, int prefix, const char *key, int len,
21 const char *suffix, uint32 *dlen)
23 static stralloc k = STRALLOC_INIT;
28 if (!stralloc_append(&k, &ch) ||
29 !stralloc_catb(&k, key, len) ||
30 (suffix && !stralloc_cats(&k, suffix)))
32 D( fprintf(stderr, "*** `%.*s' -> ", k.len, k.s); )
33 rc = cdb_seek(cdb, k.s, k.len, dlen);
35 fprintf(stderr, "error: %s\n", strerror(errno));
37 fprintf(stderr, "not found\n");
39 fprintf(stderr, "empty\n");
44 off_t pos = lseek(cdb, 0, SEEK_CUR);
47 nn = sizeof(buf); if (nn > n) nn = n;
49 fwrite(buf, 1, nn, stderr);
52 fprintf(stderr, "'\n");
53 lseek(cdb, pos, SEEK_SET);
58 static int localprobe(int cdb, const char *key, int len,
59 const char *suffix, int *rc)
65 if ((err = probe(cdb, 'L', key, len, suffix, &dlen)) < 0)
67 if (!err) { *rc = 0; return (0); }
68 if (dlen != 1) { errno = EINVAL; return (-1); }
69 if (read(cdb, &ch, 1) != 1) { errno = EIO; return (-1); }
74 static int local(int cdb, const char *l, int len, int *rc)
80 if ((err = localprobe(cdb, l, len, 0, &code)) != 0) goto done;
83 dash = byte_rchr(l, len, '-');
84 if (dash == len) break;
85 if ((err = localprobe(cdb, l, dash, "-default", &code)) != 0) goto done;
94 case '+': *rc = 1; break;
95 case '-': *rc = 0; break;
96 default: errno = EINVAL; err = -1; break;
102 static int virt(int cdb, const char *u, int ulen,
103 const char *addr, int alen, int *rc)
105 static stralloc l = STRALLOC_INIT;
109 if ((err = probe(cdb, 'V', addr, alen, 0, &dlen)) <= 0)
111 if (!stralloc_ready(&l, dlen + 1)) return (-1);
112 if (read(cdb, l.s, dlen) != dlen) { errno = EIO; return (-1); }
115 if (!stralloc_catb(&l, u, ulen)) return (-1);
116 D( printf("*** virtual map -> `%.*s'\n", l.len, l.s); )
117 if (local(cdb, l.s, l.len, rc) < 0) return (-1);
121 int addrcheck(int cdb, const char *addr, int *rc)
128 at = str_chr(addr, '@');
130 return (local(cdb, addr, len, rc));
132 if ((err = virt(cdb, addr, at, addr, len, rc)) != 0)
136 if ((err = virt(cdb, addr, at, addr + dot, len - dot, rc)) != 0)
138 dot += byte_chr(addr + dot + 1, len - dot - 1, '.') + 1;
141 if ((err = probe(cdb, '@', addr + at + 1, len - at - 1, 0, &dlen)) < 0)
143 if (!err) { *rc = 1; return (0); }
144 if (dlen != 0) { errno = EINVAL; return (-1); }
146 return (local(cdb, addr, at, rc));
150 #include <sys/types.h>
157 int main(int argc, char *argv[])
164 fprintf(stderr, "usage: addrcheck CDB ADDR...\n");
167 if ((fd = open(argv[1], O_RDONLY)) < 0) {
171 for (i = 2; i < argc; i++) {
172 if (addrcheck(fd, argv[i], &rc) < 0) {
176 printf("%s: %s\n", argv[i], rc ? "ok" : "bad");