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dnsdbq.c
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dnsdbq.c
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/*
* Copyright (c) 2014-2018 by Farsight Security, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* External. */
/* asprintf() does not appear on linux without this */
#define _GNU_SOURCE
/* gettimeofday() does not appear on linux without this. */
#define _BSD_SOURCE
/* modern glibc will complain about the above if it doesn't see this. */
#define _DEFAULT_SOURCE
/* optional features. */
#define WANT_PDNS_CIRCL 1
#define WANT_PDNS_DETEQUE 1
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/time.h>
#include <assert.h>
#include <ctype.h>
#include <fcntl.h>
#include <inttypes.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <wordexp.h>
#include <arpa/inet.h>
#include <curl/curl.h>
#include <jansson.h>
#include "ns_ttl.h"
extern char **environ;
/* Types. */
struct pdns_json {
json_t *main,
*time_first, *time_last, *zone_first, *zone_last,
*bailiwick, *rrname, *rrtype, *rdata,
*count;
};
struct pdns_tuple {
struct pdns_json obj;
u_long time_first, time_last, zone_first, zone_last;
const char *bailiwick, *rrname, *rrtype, *rdata;
json_int_t count;
};
typedef struct pdns_tuple *pdns_tuple_t;
typedef const struct pdns_tuple *pdns_tuple_ct;
typedef void (*present_t)(pdns_tuple_ct, const char *, size_t, FILE *);
struct rate_json {
json_t *main,
*reset, *expires, *limit, *remaining,
*burst_size, *burst_window, *results_max;
};
enum ratekind {
rk_naught = 0, /* not present. */
rk_na, /* "n/a". */
rk_unlimited, /* "unlimited". */
rk_int /* some integer. */
};
struct rateval {
enum ratekind rk;
u_long as_int; /* only for rk == rk_int. */
};
struct rate_tuple {
struct rate_json obj;
struct rateval reset, expires, limit, remaining,
burst_size, burst_window, results_max;
};
typedef struct rate_tuple *rate_tuple_t;
struct reader {
struct reader *next;
struct writer *writer;
CURL *easy;
struct curl_slist *hdrs;
char *url;
char *buf;
size_t len;
long rcode;
bool once;
};
typedef struct reader *reader_t;
struct writer {
struct writer *next;
struct reader *readers;
u_long after;
u_long before;
FILE *sort_stdin;
FILE *sort_stdout;
pid_t sort_pid;
int count;
};
typedef struct writer *writer_t;
struct pdns_sys {
const char *name;
const char *server;
/* first argument is the input URL path.
second is an output parameter pointing to
the separator character (? or &) that the caller should
use between any further URL parameters. May be
NULL if the caller doesn't care */
char * (*url)(const char *, char *);
void (*request_info)(void);
void (*write_info)(reader_t);
void (*auth)(reader_t);
};
typedef const struct pdns_sys *pdns_sys_t;
typedef enum { no_mode = 0, rdata_mode, name_mode, ip_mode, raw_mode } mode_e;
struct sortbuf { char *base; size_t size; };
typedef struct sortbuf *sortbuf_t;
/* Forward. */
static void help(void);
static __attribute__((noreturn)) void usage(const char *);
static __attribute__((noreturn)) void my_exit(int, ...);
static __attribute__((noreturn)) void my_panic(const char *);
static void server_setup(void);
static const char *add_sort_key(const char *tok);
static pdns_sys_t find_system(const char *);
static void read_configs(void);
static void read_environ(void);
static void do_batch(FILE *, u_long, u_long);
static char *makepath(mode_e, const char *, const char *,
const char *, const char *);
static void make_curl(void);
static void unmake_curl(void);
static void pdns_query(const char *, u_long, u_long);
static void query_launcher(const char *, writer_t, u_long, u_long);
static void launch(const char *, writer_t, u_long, u_long, u_long, u_long);
static void launch_one(writer_t, char *);
static void rendezvous(reader_t);
static void ruminate_json(int, u_long, u_long);
static writer_t writer_init(u_long, u_long);
static size_t writer_func(char *ptr, size_t size, size_t nmemb, void *blob);
static int input_blob(const char *, size_t, u_long, u_long, FILE *);
static void writer_fini(writer_t);
static void io_engine(int);
static void present_text(pdns_tuple_ct, const char *, size_t, FILE *);
static void present_json(pdns_tuple_ct, const char *, size_t, FILE *);
static void present_csv(pdns_tuple_ct, const char *, size_t, FILE *);
static void present_csv_line(pdns_tuple_ct, const char *, FILE *);
static const char *tuple_make(pdns_tuple_t, const char *, size_t);
static void print_rateval(FILE *, const char *, const struct rateval *);
static void print_burstrate(FILE *, const char *, const struct rateval *,
const struct rateval *);
static const char *parse_rateval(const json_t *, const char *,
struct rateval *);
static const char *rate_tuple_make(rate_tuple_t, const char *, size_t);
static void rate_tuple_unmake(rate_tuple_t);
static void tuple_unmake(pdns_tuple_t);
static int timecmp(u_long, u_long);
static void time_print(u_long x, FILE *);
static int time_get(const char *src, u_long *dst);
static void escape(char **);
static char *sortable_rrname(pdns_tuple_ct);
static char *sortable_rdata(pdns_tuple_ct);
static void sortable_rdatum(sortbuf_t, const char *, const char *);
static void sortable_dnsname(sortbuf_t, const char *);
static void sortable_hexify(sortbuf_t, const u_char *, size_t);
static char *dnsdb_url(const char *, char *);
static void dnsdb_request_info(void);
static void dnsdb_write_info(reader_t);
static void dnsdb_auth(reader_t);
/* Constants. */
static const char * const conf_files[] = {
"~/.isc-dnsdb-query.conf",
"~/.dnsdb-query.conf",
"/etc/isc-dnsdb-query.conf",
"/etc/dnsdb-query.conf",
NULL
};
static const char path_sort[] = "/usr/bin/sort";
static const char json_header[] = "Accept: application/json";
static const char env_api_key[] = "DNSDB_API_KEY";
static const char env_dnsdb_server[] = "DNSDB_SERVER";
static const char env_time_fmt[] = "DNSDB_TIME_FORMAT";
/* We pass swclient=$id_swclient&version=$id_version in all queries to DNSDB. */
static const char id_swclient[] = "dnsdbq";
static const char id_version[] = "1.1";
#define MAX_KEYS 5
#define MAX_JOBS 8
#define CREATE(p, s) if (p != NULL) { my_panic("non-NULL ptr"); } \
else if ((p = malloc(s)) == NULL) { my_panic("malloc failed"); } \
else { memset(p, 0, s); }
#define DESTROY(p) if (p != NULL) { free(p); p = NULL; } else {}
/* Private. */
static const char *program_name = NULL;
static char *additional_qparams = NULL;
static char *api_key = NULL;
static char *dnsdb_server = NULL;
static bool batch = false;
static bool merge = false;
static bool complete = false;
static bool info = false;
static int debuglev = 0;
static enum { no_sort = 0, normal_sort, reverse_sort } sorted = no_sort;
static int curl_cleanup_needed = 0;
static present_t pres = present_text;
static int query_limit = -1; /* -1 means not set on command line */
static int output_limit = 0;
static CURLM *multi = NULL;
static struct timeval now;
static int nkeys = 0;
static const char *keys[MAX_KEYS];
static bool sort_byname = false;
static bool sort_bydata = false;
static writer_t writers = NULL;
static int exit_code = 0; /* hopeful */
static size_t ideal_buffer;
static pdns_sys_t sys;
#if WANT_PDNS_CIRCL
#include "dnsdbq_sys_circl.c"
#endif
#if WANT_PDNS_DETEQUE
#include "dnsdbq_sys_deteque.c"
#endif
static const struct pdns_sys pdns_systems[] = {
/* note: element [0] of this array is the default. */
{ "dnsdb", "https://api.dnsdb.info",
dnsdb_url, dnsdb_request_info, dnsdb_write_info, dnsdb_auth },
#if WANT_PDNS_CIRCL
{ "circl", "https://www.circl.lu/pdns/query",
circl_url, NULL, NULL, circl_auth },
#endif
#if WANT_PDNS_DETEQUE
{ "deteque", "https://api-pdns.deteque.com/v2",
deteque_url, deteque_request_info, deteque_write_info, deteque_auth },
#endif
{ NULL, NULL, NULL, NULL, NULL, NULL }
};
/* Public. */
int
main(int argc, char *argv[]) {
mode_e mode = no_mode;
char *name = NULL, *rrtype = NULL, *bailiwick = NULL, *length = NULL;
u_long after = 0;
u_long before = 0;
int json_fd = -1;
int ch;
sys = pdns_systems;
/* global dynamic initialization. */
ideal_buffer = 4 * (size_t) sysconf(_SC_PAGESIZE);
gettimeofday(&now, NULL);
program_name = strrchr(argv[0], '/');
if (program_name != NULL)
program_name++;
else
program_name = argv[0];
/* process the command line options. */
while ((ch = getopt(argc, argv,
"a:A:B:r:n:i:l:L:u:p:t:b:k:J:R:djfmsShcI")) != -1)
{
switch (ch) {
case 'a':
additional_qparams = strdup(optarg);
break;
case 'A':
if (!time_get(optarg, &after)) {
fprintf(stderr, "bad -A timestamp: '%s'\n",
optarg);
my_exit(1, NULL);
}
break;
case 'B':
if (!time_get(optarg, &before)) {
fprintf(stderr, "bad -B timestamp: '%s'\n",
optarg);
my_exit(1, NULL);
}
break;
case 'r': {
const char *p;
if (mode != no_mode)
usage("-r, -n, -i, or -R "
"can only appear once");
assert(name == NULL);
mode = rdata_mode;
if (rrtype == NULL)
p = strchr(optarg, '/');
else
p = NULL;
if (p != NULL) {
const char *q;
q = strchr(p + 1, '/');
if (q != NULL) {
if (bailiwick != NULL)
usage("can only specify "
"one bailiwick");
bailiwick = strdup(q + 1);
rrtype = strndup(p + 1,
(size_t)(q - p - 1));
} else {
rrtype = strdup(p + 1);
}
name = strndup(optarg, (size_t)(p - optarg));
} else {
name = strdup(optarg);
}
break;
}
case 'n': {
const char *p;
if (mode != no_mode)
usage("-r, -n, -i, or -R "
"can only appear once");
assert(name == NULL);
mode = name_mode;
if (rrtype == NULL)
p = strchr(optarg, '/');
else
p = NULL;
if (p != NULL) {
if (strchr(p + 1, '/') != NULL)
usage("-n must be NAME[/TYPE] only");
name = strndup(optarg, (size_t)(p - optarg));
rrtype = strdup(p + 1);
} else {
name = strdup(optarg);
}
break;
}
case 'i': {
const char *p;
if (mode != no_mode)
usage("-r, -n, -i, or -R "
"can only appear once");
assert(name == NULL);
mode = ip_mode;
p = strchr(optarg, '/');
if (p != NULL) {
name = strndup(optarg, (size_t)(p - optarg));
length = strdup(p + 1);
} else {
name = strdup(optarg);
}
break;
}
case 'R': {
if (mode != no_mode)
usage("-r, -n, -i, or -R "
"can only appear once");
assert(name == NULL);
mode = raw_mode;
name = strdup(optarg);
break;
}
case 'l':
query_limit = atoi(optarg);
if (query_limit < 0)
usage("-l must be zero or positive");
break;
case 'L':
output_limit = atoi(optarg);
if (output_limit <= 0)
usage("-L must be positive");
break;
case 'u':
sys = find_system(optarg);
if (sys == NULL)
usage("-u must refer to a pdns system");
break;
case 'p':
if (strcasecmp(optarg, "json") == 0)
pres = present_json;
else if (strcasecmp(optarg, "csv") == 0)
pres = present_csv;
else if (strcasecmp(optarg, "text") == 0 ||
strcasecmp(optarg, "dns") == 0)
{
pres = present_text;
} else {
usage("-p must specify json, text, or csv");
}
break;
case 't':
if (rrtype != NULL)
usage("can only specify rrtype one way");
rrtype = strdup(optarg);
break;
case 'b':
if (bailiwick != NULL)
usage("can only specify bailiwick one way");
bailiwick = strdup(optarg);
break;
case 'k': {
const char *tok;
if (nkeys > 0)
usage("Can only specify -k once; use commas "
"to seperate multiple sort fields");
nkeys = 0;
for (tok = strtok(optarg, ",");
tok != NULL;
tok = strtok(NULL, ","))
{
const char *msg;
if ((msg = add_sort_key(tok)) != NULL)
usage(msg);
}
break;
}
case 'J':
if (strcmp(optarg, "-") == 0)
json_fd = STDIN_FILENO;
else
json_fd = open(optarg, O_RDONLY);
if (json_fd < 0)
my_panic(optarg);
break;
case 'd':
debuglev++;
break;
case 'j':
pres = present_json;
break;
case 'f':
batch = true;
break;
case 'm':
merge = true;
break;
case 's':
sorted = normal_sort;
break;
case 'S':
sorted = reverse_sort;
break;
case 'c':
complete = true;
break;
case 'I':
info = true;
pres = present_text;
break;
case 'h':
help();
my_exit(0, NULL);
default:
usage("unrecognized option");
}
}
argc -= optind;
if (argc != 0)
usage("there are no non-option arguments to this program");
argv = NULL;
/* recondition various options for HTML use. */
if (name != NULL)
escape(&name);
if (rrtype != NULL)
escape(&rrtype);
if (bailiwick != NULL)
escape(&bailiwick);
if (length != NULL)
escape(&length);
if (output_limit == 0) {
/* If not set, default to whatever limit has, unless limit is
* 0 or -1, in which case use a really big integer.
*/
if (query_limit == 0 || query_limit == -1)
output_limit = INT32_MAX;
else
output_limit = query_limit;
}
/* optionally dump program options as interpreted. */
if (debuglev > 0) {
if (name != NULL)
fprintf(stderr, "name = '%s'\n", name);
if (rrtype != NULL)
fprintf(stderr, "type = '%s'\n", rrtype);
if (bailiwick != NULL)
fprintf(stderr, "bailiwick = '%s'\n", bailiwick);
if (length != NULL)
fprintf(stderr, "length = '%s'\n", length);
if (after != 0) {
fprintf(stderr, "after = %ld : ", (long)after);
time_print(after, stderr);
putc('\n', stderr);
}
if (before != 0) {
fprintf(stderr, "before = %ld : ", (long)before);
time_print(before, stderr);
putc('\n', stderr);
}
if (query_limit != -1)
fprintf(stderr, "query_limit = %d\n", query_limit);
if (output_limit != 0)
fprintf(stderr, "output_limit = %d\n", output_limit);
fprintf(stderr, "batch=%d, merge=%d\n", batch, merge);
}
/* validate some interrelated options. */
if (after != 0 && before != 0) {
if (after > 0 && before > 0 && after > before)
usage("-A -B requires after <= before (for now)");
if (sorted == no_sort && json_fd == -1 && !complete) {
fprintf(stderr,
"-A and -B w/o -c requires sorting for dedup, "
"so turning on -S here.\n");
sorted = reverse_sort;
}
}
if (complete && !after && !before)
usage("-c without -A or -B makes no sense.");
if (merge && !batch)
usage("using -m without -f makes no sense.");
if (nkeys > 0 && sorted == no_sort)
usage("using -k without -s or -S makes no sense.");
if (nkeys == 0 && sorted != no_sort) {
(void) add_sort_key("first");
(void) add_sort_key("last");
(void) add_sort_key("count");
}
/* get some input from somewhere, and use it to drive our output. */
if (json_fd != -1) {
if (mode != no_mode)
usage("can't mix -n, -r, -i, or -R with -J");
if (batch)
usage("can't mix -f with -J");
if (bailiwick != NULL)
usage("can't mix -b with -J");
if (info)
usage("can't mix -I with -J");
ruminate_json(json_fd, after, before);
close(json_fd);
} else if (batch) {
if (mode != no_mode)
usage("can't mix -n, -r, -i, or -R with -f");
if (bailiwick != NULL)
usage("can't mix -b with -f");
if (rrtype != NULL)
usage("can't mix -t with -f");
if (info)
usage("can't mix -I with -f");
server_setup();
make_curl();
do_batch(stdin, after, before);
unmake_curl();
} else if (info) {
if (mode != no_mode)
usage("can't mix -n, -r, -i, or -R with -I");
if (pres != present_text && pres != present_json)
usage("info must be presented in json or text format");
if (bailiwick != NULL)
usage("can't mix -b with -I");
if (rrtype != NULL)
usage("can't mix -t with -I");
if (sys->request_info == NULL || sys->write_info == NULL)
usage("there is no 'info' for this service");
server_setup();
make_curl();
sys->request_info();
unmake_curl();
} else {
char *command;
if (mode == no_mode)
usage("must specify -r, -n, -i, or -R"
" unless -f or -J is used");
if (bailiwick != NULL) {
if (mode == ip_mode)
usage("can't mix -b with -i");
if (mode == raw_mode)
usage("can't mix -b with -R");
if (mode == name_mode)
usage("can't mix -b with -n");
}
if (mode == ip_mode && rrtype != NULL)
usage("can't mix -i with -t");
command = makepath(mode, name, rrtype, bailiwick, length);
server_setup();
make_curl();
pdns_query(command, after, before);
DESTROY(command);
unmake_curl();
}
/* clean up and go. */
DESTROY(name);
DESTROY(rrtype);
DESTROY(bailiwick);
DESTROY(length);
my_exit(exit_code, NULL);
}
/* Private. */
/* help -- display a brief usage-help text; then exit.
*/
static void
help(void) {
pdns_sys_t t;
fprintf(stderr,
"usage: %s [-djsShcI] [-p dns|json|csv] [-k (first|last|count)[,...]]\n"
"\t[-l LIMIT] [-L OUTPUT-LIMIT] [-A after] [-B before] [-u system] {\n"
"\t\t-f |\n"
"\t\t-J inputfile |\n"
"\t\t[-t rrtype] [-b bailiwick] {\n"
"\t\t\t-r OWNER[/TYPE[/BAILIWICK]] |\n"
"\t\t\t-n NAME[/TYPE] |\n"
"\t\t\t-i IP[/PFXLEN]\n"
"\t\t\t-R RAW-DATA[/TYPE] |\n"
"\t\t}\n"
"\t}\n"
"for -f, stdin must contain lines of the following forms:\n"
"\trrset/name/NAME[/TYPE[/BAILIWICK]]\n"
"\trdata/name/NAME[/TYPE]\n"
"\trdata/ip/ADDR[/PFXLEN]\n"
"for -f, output format will be determined by -p, using --\\n framing\n"
"for -J, input format is newline-separated JSON, as for -j output\n"
"for -A and -B, use abs. YYYY-MM-DD[ HH:MM:SS] "
"or rel. %%dw%%dd%%dh%%dm%%ds format\n"
"use -j as a synonym for -p json.\n"
"use -s to sort in ascending order, or -S for descending order.\n"
"use -h to reliably display this helpful text.\n"
"use -c to get complete (vs. partial) time matching for -A and -B\n"
"use -d one or more times to ramp up the diagnostic output\n"
"use -I to see a system-specific account or key summary in JSON format\n"
"use -a to add additional query params to the ReST request\n",
program_name);
fprintf(stderr, "\nsystem must be one of:");
for (t = pdns_systems; t->name != NULL; t++)
fprintf(stderr, " %s", t->name);
fprintf(stderr, "\n\ntry man %s for a longer description\n",
program_name);
}
/* usage -- display a usage error message, brief usage help text; then exit.
*/
static __attribute__((noreturn)) void
usage(const char *error) {
fprintf(stderr,
"error: %s\n"
"\n"
"try %s -h for a short description of program usage.\n",
error, program_name);
my_exit(1, NULL);
}
/* my_exit -- free() the heap objects supplied as arguments, then exit.
*/
static __attribute__((noreturn)) void
my_exit(int code, ...) {
va_list ap;
void *p;
/* our varargs are things to be free()'d. */
va_start(ap, code);
while (p = va_arg(ap, void *), p != NULL)
free(p);
va_end(ap);
/* writers and readers which are still known, must be free()'d. */
while (writers != NULL)
writer_fini(writers);
/* if curl is operating, it must be shut down. */
unmake_curl();
/* globals which may have been initialized, are to be free()'d. */
DESTROY(api_key);
DESTROY(dnsdb_server);
#if WANT_PDNS_CIRCL
DESTROY(circl_server);
DESTROY(circl_authinfo);
#endif
#if WANT_PDNS_DETEQUE
DESTROY(deteque_token);
DESTROY(deteque_server);
DESTROY(deteque_authinfo);
DESTROY(deteque_authfile);
#endif
/* terminate process. */
if (debuglev > 0)
fprintf(stderr, "about to call exit(%d)\n", code);
exit(code);
}
/* my_panic -- display an error on diagnostic output stream, exit ungracefully
*/
static __attribute__((noreturn)) void
my_panic(const char *s) {
perror(s);
my_exit(1, NULL);
}
/* add_sort_key -- add a key for use by POSIX sort.
*/
static const char *
add_sort_key(const char *tok) {
const char *key = NULL;
if (nkeys == MAX_KEYS)
return ("too many sort keys given.");
if (strcasecmp(tok, "first") == 0) {
key = "-k1n";
} else if (strcasecmp(tok, "last") == 0) {
key = "-k2n";
} else if (strcasecmp(tok, "count") == 0) {
key = "-k3n";
} else if (strcasecmp(tok, "name") == 0) {
key = "-k4";
sort_byname = true;
} else if (strcasecmp(tok, "data") == 0) {
key = "-k5";
sort_bydata = true;
}
if (key == NULL)
return ("key must be one of first, "
"last, count, name, or data");
keys[nkeys++] = key;
return (NULL);
}
/* find_pdns -- locate a pdns system's metadata by name.
*/
static pdns_sys_t
find_system(const char *name) {
pdns_sys_t t;
for (t = pdns_systems; t->name != NULL; t++)
if (strcasecmp(t->name, name) == 0)
return (t);
return (NULL);
}
/* server_setup -- learn the server name and API key by various means.
*/
static void
server_setup(void) {
read_configs();
read_environ();
}
/* read_configs -- try to find a config file in static path, then parse it.
*/
static void
read_configs(void) {
const char * const *conf;
char *cf = NULL;
for (conf = conf_files; *conf != NULL; conf++) {
wordexp_t we;
wordexp(*conf, &we, WRDE_NOCMD);
cf = strdup(we.we_wordv[0]);
wordfree(&we);
if (access(cf, R_OK) == 0) {
if (debuglev > 0)
fprintf(stderr, "conf found: '%s'\n", cf);
break;
}
DESTROY(cf);
}
if (*conf != NULL) {
char *cmd, *tok1, *tok2, *line;
size_t n;
FILE *f;
int x;
x = asprintf(&cmd,
". %s;"
"echo apikey $APIKEY;"
"echo server $DNSDB_SERVER;"
#if WANT_PDNS_CIRCL
"echo circla $CIRCL_AUTH;"
"echo circls $CIRCL_SERVER;"
#endif
#if WANT_PDNS_DETEQUE
"echo deteque_t $DETEQUE_TOKEN;"
"echo deteque_a $DETEQUE_AUTH;"
"echo deteque_s $DETEQUE_SERVER;"
"echo deteque_f $DETEQUE_AUTHFILE;"
#endif
"exit", cf);
if (x < 0)
my_panic("asprintf");
f = popen(cmd, "r");
if (f == NULL) {
perror(cmd);
my_exit(1, cmd, NULL);
}
if (debuglev > 0)
fprintf(stderr, "conf cmd = '%s'\n", cmd);
DESTROY(cmd);
line = NULL;
n = 0;
while (getline(&line, &n, f) > 0) {
char **pp;
if (strchr(line, '\n') == NULL) {
fprintf(stderr, "line too long: '%s'\n", line);
my_exit(1, cf, NULL);
}
if (debuglev > 0)
fprintf(stderr, "conf line: %s", line);
tok1 = strtok(line, "\040\012");
tok2 = strtok(NULL, "\040\012");
if (tok1 == NULL) {
fprintf(stderr, "line malformed: %s", line);
my_exit(1, cf, NULL);
}
if (tok2 == NULL)
continue;
pp = NULL;
if (strcmp(tok1, "apikey") == 0) {
pp = &api_key;
} else if (strcmp(tok1, "server") == 0) {
pp = &dnsdb_server;
#if WANT_PDNS_CIRCL
} else if (strcmp(tok1, "circla") == 0) {
pp = &circl_authinfo;
} else if (strcmp(tok1, "circls") == 0) {
pp = &circl_server;
#endif
#if WANT_PDNS_DETEQUE
} else if (strcmp(tok1, "deteque_t") == 0) {
pp = &deteque_token;
} else if (strcmp(tok1, "deteque_a") == 0) {
pp = &deteque_authinfo;
} else if (strcmp(tok1, "deteque_s") == 0) {
pp = &deteque_server;
} else if (strcmp(tok1, "deteque_f") == 0) {
pp = &deteque_authfile;
#endif
} else
abort();
DESTROY(*pp);
*pp = strdup(tok2);
}
DESTROY(line);
pclose(f);
}
DESTROY(cf);
}
/* read_environ -- override the config file from environment variables?
*/
static void
read_environ() {
const char *val;
val = getenv(env_api_key);
if (val != NULL) {
if (api_key != NULL)
free(api_key);
api_key = strdup(val);
if (debuglev > 0)
fprintf(stderr, "conf env api_key = '%s'\n", api_key);
}
val = getenv(env_dnsdb_server);
if (val != NULL) {
if (dnsdb_server != NULL)
free(dnsdb_server);
dnsdb_server = strdup(val);
if (debuglev > 0)
fprintf(stderr, "conf env dnsdb_server = '%s'\n",
dnsdb_server);
}
/*
if (api_key == NULL) {
fprintf(stderr, "no API key given\n");
my_exit(1, NULL);
}
*/
}
/* do_batch -- implement "filter" mode, reading commands from a batch file.
*/
static void
do_batch(FILE *f, u_long after, u_long before) {
writer_t writer = NULL;
char *command = NULL;
size_t n = 0;
/* if merging, start a writer. */
if (merge)
writer = writer_init(after, before);
while (getline(&command, &n, f) > 0) {
char *nl = strchr(command, '\n');
if (nl == NULL) {
fprintf(stderr, "batch line too long: %s\n", command);
continue;
}
*nl = '\0';
if (debuglev > 0)
fprintf(stderr, "do_batch(%s)\n", command);
/* if not merging, start a writer here instead. */
if (!merge)
writer = writer_init(after, before);
/* start one or two curl jobs based on this search. */
query_launcher(command, writer, after, before);
/* if merging, drain some jobs; else, drain all jobs. */
if (merge) {
io_engine(MAX_JOBS);
} else {
io_engine(0);
writer_fini(writer);
writer = NULL;
fprintf(stdout, "--\n");
fflush(stdout);
}
}
DESTROY(command);
/* if merging, run remaining jobs to completion, then finish up. */
if (merge) {
io_engine(0);
writer_fini(writer);
}
}
/* makepath -- make a RESTful URI that describes these search parameters.
*/
static char *
makepath(mode_e mode, const char *name, const char *rrtype,
const char *bailiwick, const char *length)
{
char *command;
int x;
switch (mode) {
case rdata_mode:
if (rrtype != NULL && bailiwick != NULL)
x = asprintf(&command, "rrset/name/%s/%s/%s",
name, rrtype, bailiwick);
else if (rrtype != NULL)
x = asprintf(&command, "rrset/name/%s/%s",