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troubles with getting data from tables

From: Roman Bogorodskiy <bogorodskiy(at)inbox(dot)ru>
To: pgsql-interfaces(at)postgresql(dot)org
Subject: troubles with getting data from tables
Date: 2003-09-23 16:17:50
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-interfaces

	I'm writing a backend for some ftp demon on C.  I want to make it possible 
to authorize server's clients via pgsql. And I have a such problem:

I have a function FCN_VALIDATE_LOGIN which checks if a given users name is ok.

It's looks like this (I've removed some  debug code) :

---cut 8<---

FCN_VALIDATE_LOGIN (const char *login)
        PGresult *res;

        char *query;
        query = malloc(256);

        sprintf(query, "SELECT * FROM users WHERE name=\'%s\';", login);

        res = PQexec(conn, query);

        if (!res || PQresultStatus(res) != PGRES_TUPLES_OK) {
                fprintf(stderr, "%s\n", PQresultErrorMessage(conn));

        if (PQntuples(res) == 1) {
                int uid_field_index;
                unsigned int *uid;

                uid_field_index = PQfnumber(res, "uid");
                uid = (int *) PQgetvalue(res, 0, uid_field_index);

#ifdef DEBUG
        fprintf(stderr, "uid_field_index = %i\n uid %i\n", uid_field_index, uid);
        //      return uid;
        } else { // Not such user
                return -1;


---cut 8<---

And I have a such table:

---cut 8<---

    name character varying NOT NULL,
    passwd character varying,
    home character varying,
    groups character varying NOT NULL,
    rights character varying NOT NULL,
    uid int4 NOT NULL,
    ip_allowed character varying,
    max_dl_speed integer,
    bytes_ul_total bigint,
    bytes_dl_total bigint,
    ratio integer,
    flags character varying,
    user_slots integer,
    leech_slots integer

---cut 8<---

I have only one row in this table where uid is '1001'.

wzdftpd=# select uid from users;
(1 row)

But instead of '1001' "uid" value is '134820376'. Where I was wrong?

-Roman Bogorodskiy [Novel]


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Subject: Re: troubles with getting data from tables
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