81 lines
1.1 KiB
C
81 lines
1.1 KiB
C
#include <u.h>
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#include <libc.h>
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#include <bio.h>
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#include <ndb.h>
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/*
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* search the database for matches
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*/
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void
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usage(void)
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{
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fprint(2, "usage: query attr value [returned attribute]\n");
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exits("usage");
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}
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void
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search(Ndb *db, char *attr, char *val, char *rattr)
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{
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Ndbs s;
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Ndbtuple *t;
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Ndbtuple *nt;
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char *p;
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if(rattr){
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p = ndbgetvalue(db, &s, attr, val, rattr, nil);
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if(p){
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print("%s\n", p);
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free(p);
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}
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return;
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}
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t = ndbsearch(db, &s, attr, val);
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while(t){
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for(nt = t; nt; nt = nt->entry)
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print("%s=%s ", nt->attr, nt->val);
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print("\n");
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ndbfree(t);
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t = ndbsnext(&s, attr, val);
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}
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}
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void
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main(int argc, char **argv)
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{
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char *rattr = 0;
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Ndb *db;
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char *dbfile = 0;
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int reps = 1;
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ARGBEGIN{
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case 'f':
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dbfile = ARGF();
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break;
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}ARGEND;
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switch(argc){
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case 4:
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reps = atoi(argv[3]);
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/* fall through */
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case 3:
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rattr = argv[2];
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break;
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case 2:
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rattr = 0;
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break;
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default:
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usage();
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}
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db = ndbopen(dbfile);
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if(db == 0){
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fprint(2, "no db files\n");
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exits("no db");
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}
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while(reps--)
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search(db, argv[0], argv[1], rattr);
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ndbclose(db);
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exits(0);
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}
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