diff options
Diffstat (limited to 'src/cmd/ndb/ndbmkhosts.c')
| -rw-r--r-- | src/cmd/ndb/ndbmkhosts.c | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/src/cmd/ndb/ndbmkhosts.c b/src/cmd/ndb/ndbmkhosts.c new file mode 100644 index 00000000..46f9f978 --- /dev/null +++ b/src/cmd/ndb/ndbmkhosts.c @@ -0,0 +1,233 @@ +#include <u.h> +#include <libc.h> +#include <bio.h> +#include <ndb.h> +#include <ip.h> + +typedef struct x +{ + Ndbtuple *t; + Ndbtuple *it; + Ndbtuple *nt; +} X; + +X x[4096]; +int nx; +char *domname = "research.att.com"; +int domnamlen; + +char* +upper(char *x) +{ + char *p; + int c; + + for(p = x; c = *p; p++) + *p = toupper(c); + return x; +} + +void +printArecord(int fd, X *p) +{ + Ndbtuple *nt; + char *c; + char *dom = 0; + char *curdom = 0; + int i, cdlen = 0; + int mxweight = 0; + + if(p->nt) { + return; + } + for(nt=p->t; nt; nt = nt->entry) { + /* we are only going to handle things in the specified domain */ + c = strchr(nt->val, '.'); + if (c==0 || strcmp(++c, domname)!=0) + continue; + i = c - nt->val - 1; + if(strcmp(nt->attr, "dom") == 0) { + curdom = nt->val; + cdlen = i; + if (dom == 0) { + dom = curdom; + fprint(fd, "%-.*s%.*s IN A %s\n", i, nt->val, 15-i, " ", p->it->val); + } else + fprint(fd, "%-.*s%.*s IN CNAME %s.\n", i, nt->val, 15-i, " ", dom); + } else if(strcmp(nt->attr, "mx") == 0) { + if (curdom != 0) + fprint(fd, "%-.*s%.*s MX %d %s.\n", cdlen, curdom, 15-cdlen, " ", mxweight++, nt->val); + } + } +} + +void +printentry(int fd, X *p) +{ + Ndbtuple *nt; + + if(p->nt) + return; + fprint(fd, "%s ", p->it->val); + for(nt = p->t; nt; nt = nt->entry) + if(strcmp(nt->attr, "dom") == 0) + fprint(fd, " %s", nt->val); + for(nt = p->t; nt; nt = nt->entry) + if(strcmp(nt->attr, "sys") == 0) + fprint(fd, " %s", nt->val); + fprint(fd, "\n"); +} + +void +printsys(int fd, X *p) +{ + Ndbtuple *nt; + + for(nt = p->t; nt; nt = nt->entry) + if(strcmp(nt->attr, "dom") == 0) + fprint(fd, "%s\n", nt->val); +} + +void +printtxt(int fd, X *p) +{ + int i; + Ndbtuple *nt; + + if(p->nt){ + for(;;){ + i = strlen(p->it->val); + if(strcmp(p->it->val+i-2, ".0") == 0) + p->it->val[i-2] = 0; + else + break; + } + fprint(fd, "\nNET : %s : %s\n", p->it->val, upper(p->nt->val)); + return; + } + fprint(fd, "HOST : %s :", p->it->val); + i = 0; + for(nt = p->t; nt; nt = nt->entry) + if(strcmp(nt->attr, "dom") == 0){ + if(i++ == 0) + fprint(fd, " %s", upper(nt->val)); + else + fprint(fd, ", %s", upper(nt->val)); + } + fprint(fd, "\n"); +} + +void +parse(char *file) +{ + int i; + Ndb *db; + Ndbtuple *t, *nt, *tt, *ipnett; + char *p; + + db = ndbopen(file); + if(db == 0) + exits("no database"); + while(t = ndbparse(db)){ + for(nt = t; nt; nt = nt->entry){ + if(strcmp(nt->attr, "ip") == 0) + break; + if(strcmp(nt->attr, "flavor") == 0 + && strcmp(nt->val, "console") == 0) + return; + } + if(nt == 0){ + ndbfree(t); + continue; + } + + /* dump anything not on our nets */ + ipnett = 0; + for(tt = t; tt; tt = tt->entry){ + if(strcmp(tt->attr, "ipnet") == 0){ + ipnett = tt; + break; + } + if(strcmp(tt->attr, "dom") == 0){ + i = strlen(tt->val); + p = tt->val+i-domnamlen; + if(p >= tt->val && strcmp(p, domname) == 0) + break; + } + } + if(tt == 0){ + ndbfree(t); + continue; + } + + for(; nt; nt = nt->entry){ + if(strcmp(nt->attr, "ip") != 0) + continue; + x[nx].it = nt; + x[nx].nt = ipnett; + x[nx++].t = t; + } + } +} + +void +main(int argc, char *argv[]) +{ + int i, fd; + char fn[128]; + + if (argc>1) + domname = argv[1]; + domnamlen = strlen(domname); + if(argc > 2){ + for(i = 2; i < argc; i++) + parse(argv[i]); + } else { + parse(unsharp("#9/ndb/local")); + parse(unsharp("#9/ndb/friends")); + } + +// sprint(fn, "/lib/ndb/hosts.%-.21s", domname); +// fd = create(fn, OWRITE, 0664); +// if(fd < 0){ +// fprint(2, "can't create %s: %r\n", fn); +// exits("boom"); +// } +// for(i = 0; i < nx; i++) +// printentry(fd, &x[i]); +// close(fd); +// + + sprint(fn, "/lib/ndb/db.%-.24s", domname); + fd = create(fn, OWRITE, 0664); + if(fd < 0){ + fprint(2, "can't create %s: %r\n", fn); + exits("boom"); + } + fprint(fd, "; This file is generated automatically, do not edit!\n"); + for(i = 0; i < nx; i++) + printArecord(fd, &x[i]); + close(fd); + + sprint(fn, "/lib/ndb/equiv.%-.21s", domname); + fd = create(fn, OWRITE, 0664); + if(fd < 0){ + fprint(2, "can't create %s: %r\n", fn); + exits("boom"); + } + for(i = 0; i < nx; i++) + printsys(fd, &x[i]); + close(fd); + + sprint(fn, "/lib/ndb/txt.%-.23s", domname); + fd = create(fn, OWRITE, 0664); + if(fd < 0){ + fprint(2, "can't create %s: %r\n", fn); + exits("boom"); + } + for(i = 0; i < nx; i++) + printtxt(fd, &x[i]); + close(fd); + + exits(0); +} |