[redis.git] / redis-cli.c

/* Redis CLI (command line interface)
 *
 * Copyright (c) 2009-2010, Salvatore Sanfilippo <antirez at gmail dot com>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *   * Redistributions of source code must retain the above copyright notice,
 *     this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *   * Neither the name of Redis nor the names of its contributors may be used
 *     to endorse or promote products derived from this software without
 *     specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include "fmacros.h"

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>

#include "anet.h"
#include "sds.h"
#include "adlist.h"
#include "zmalloc.h"

#define REDIS_CMD_INLINE 1
#define REDIS_CMD_BULK 2
#define REDIS_CMD_MULTIBULK 4

#define REDIS_NOTUSED(V) ((void) V)

static struct config {
    char *hostip;
    int hostport;
    long repeat;
    int dbnum;
    int interactive;
} config;

struct redisCommand {
    char *name;
    int arity;
    int flags;
};

static struct redisCommand cmdTable[] = {
    {"get",2,REDIS_CMD_INLINE},
    {"set",3,REDIS_CMD_BULK},
    {"setnx",3,REDIS_CMD_BULK},
    {"append",3,REDIS_CMD_BULK},
    {"substr",4,REDIS_CMD_INLINE},
    {"del",-2,REDIS_CMD_INLINE},
    {"exists",2,REDIS_CMD_INLINE},
    {"incr",2,REDIS_CMD_INLINE},
    {"decr",2,REDIS_CMD_INLINE},
    {"rpush",3,REDIS_CMD_BULK},
    {"lpush",3,REDIS_CMD_BULK},
    {"rpop",2,REDIS_CMD_INLINE},
    {"lpop",2,REDIS_CMD_INLINE},
    {"brpop",-3,REDIS_CMD_INLINE},
    {"blpop",-3,REDIS_CMD_INLINE},
    {"llen",2,REDIS_CMD_INLINE},
    {"lindex",3,REDIS_CMD_INLINE},
    {"lset",4,REDIS_CMD_BULK},
    {"lrange",4,REDIS_CMD_INLINE},
    {"ltrim",4,REDIS_CMD_INLINE},
    {"lrem",4,REDIS_CMD_BULK},
    {"rpoplpush",3,REDIS_CMD_BULK},
    {"sadd",3,REDIS_CMD_BULK},
    {"srem",3,REDIS_CMD_BULK},
    {"smove",4,REDIS_CMD_BULK},
    {"sismember",3,REDIS_CMD_BULK},
    {"scard",2,REDIS_CMD_INLINE},
    {"spop",2,REDIS_CMD_INLINE},
    {"srandmember",2,REDIS_CMD_INLINE},
    {"sinter",-2,REDIS_CMD_INLINE},
    {"sinterstore",-3,REDIS_CMD_INLINE},
    {"sunion",-2,REDIS_CMD_INLINE},
    {"sunionstore",-3,REDIS_CMD_INLINE},
    {"sdiff",-2,REDIS_CMD_INLINE},
    {"sdiffstore",-3,REDIS_CMD_INLINE},
    {"smembers",2,REDIS_CMD_INLINE},
    {"zadd",4,REDIS_CMD_BULK},
    {"zincrby",4,REDIS_CMD_BULK},
    {"zrem",3,REDIS_CMD_BULK},
    {"zremrangebyscore",4,REDIS_CMD_INLINE},
    {"zrange",-4,REDIS_CMD_INLINE},
    {"zrank",3,REDIS_CMD_BULK},
    {"zrangebyscore",-4,REDIS_CMD_INLINE},
    {"zcount",4,REDIS_CMD_INLINE},
    {"zrevrange",-4,REDIS_CMD_INLINE},
    {"zcard",2,REDIS_CMD_INLINE},
    {"zscore",3,REDIS_CMD_BULK},
    {"incrby",3,REDIS_CMD_INLINE},
    {"decrby",3,REDIS_CMD_INLINE},
    {"getset",3,REDIS_CMD_BULK},
    {"randomkey",1,REDIS_CMD_INLINE},
    {"select",2,REDIS_CMD_INLINE},
    {"move",3,REDIS_CMD_INLINE},
    {"rename",3,REDIS_CMD_INLINE},
    {"renamenx",3,REDIS_CMD_INLINE},
    {"keys",2,REDIS_CMD_INLINE},
    {"dbsize",1,REDIS_CMD_INLINE},
    {"ping",1,REDIS_CMD_INLINE},
    {"echo",2,REDIS_CMD_BULK},
    {"save",1,REDIS_CMD_INLINE},
    {"bgsave",1,REDIS_CMD_INLINE},
    {"rewriteaof",1,REDIS_CMD_INLINE},
    {"bgrewriteaof",1,REDIS_CMD_INLINE},
    {"shutdown",1,REDIS_CMD_INLINE},
    {"lastsave",1,REDIS_CMD_INLINE},
    {"type",2,REDIS_CMD_INLINE},
    {"flushdb",1,REDIS_CMD_INLINE},
    {"flushall",1,REDIS_CMD_INLINE},
    {"sort",-2,REDIS_CMD_INLINE},
    {"info",1,REDIS_CMD_INLINE},
    {"mget",-2,REDIS_CMD_INLINE},
    {"expire",3,REDIS_CMD_INLINE},
    {"expireat",3,REDIS_CMD_INLINE},
    {"ttl",2,REDIS_CMD_INLINE},
    {"slaveof",3,REDIS_CMD_INLINE},
    {"debug",-2,REDIS_CMD_INLINE},
    {"mset",-3,REDIS_CMD_MULTIBULK},
    {"msetnx",-3,REDIS_CMD_MULTIBULK},
    {"monitor",1,REDIS_CMD_INLINE},
    {"multi",1,REDIS_CMD_INLINE},
    {"exec",1,REDIS_CMD_MULTIBULK},
    {"discard",1,REDIS_CMD_INLINE},
    {NULL,0,0}
};

static int cliReadReply(int fd);
static void usage();

static struct redisCommand *lookupCommand(char *name) {
    int j = 0;
    while(cmdTable[j].name != NULL) {
        if (!strcasecmp(name,cmdTable[j].name)) return &cmdTable[j];
        j++;
    }
    return NULL;
}

static int cliConnect(void) {
    char err[ANET_ERR_LEN];
    static int fd = ANET_ERR;

    if (fd == ANET_ERR) {
        fd = anetTcpConnect(err,config.hostip,config.hostport);
        if (fd == ANET_ERR) {
            fprintf(stderr, "Could not connect to Redis at %s:%d: %s", config.hostip, config.hostport, err);
            return -1;
        }
        anetTcpNoDelay(NULL,fd);
    }
    return fd;
}

static sds cliReadLine(int fd) {
    sds line = sdsempty();

    while(1) {
        char c;
        ssize_t ret;

        ret = read(fd,&c,1);
        if (ret == -1) {
            sdsfree(line);
            return NULL;
        } else if ((ret == 0) || (c == '\n')) {
            break;
        } else {
            line = sdscatlen(line,&c,1);
        }
    }
    return sdstrim(line,"\r\n");
}

static int cliReadSingleLineReply(int fd, int quiet) {
    sds reply = cliReadLine(fd);

    if (reply == NULL) return 1;
    if (!quiet)
        printf("%s\n", reply);
    sdsfree(reply);
    return 0;
}

static int cliReadBulkReply(int fd) {
    sds replylen = cliReadLine(fd);
    char *reply, crlf[2];
    int bulklen;

    if (replylen == NULL) return 1;
    bulklen = atoi(replylen);
    if (bulklen == -1) {
        sdsfree(replylen);
        printf("(nil)\n");
        return 0;
    }
    reply = zmalloc(bulklen);
    anetRead(fd,reply,bulklen);
    anetRead(fd,crlf,2);
    if (bulklen && fwrite(reply,bulklen,1,stdout) == 0) {
        zfree(reply);
        return 1;
    }
    if (isatty(fileno(stdout)) && reply[bulklen-1] != '\n')
        printf("\n");
    zfree(reply);
    return 0;
}

static int cliReadMultiBulkReply(int fd) {
    sds replylen = cliReadLine(fd);
    int elements, c = 1;

    if (replylen == NULL) return 1;
    elements = atoi(replylen);
    if (elements == -1) {
        sdsfree(replylen);
        printf("(nil)\n");
        return 0;
    }
    if (elements == 0) {
        printf("(empty list or set)\n");
    }
    while(elements--) {
        printf("%d. ", c);
        if (cliReadReply(fd)) return 1;
        c++;
    }
    return 0;
}

static int cliReadReply(int fd) {
    char type;

    if (anetRead(fd,&type,1) <= 0) exit(1);
    switch(type) {
    case '-':
        printf("(error) ");
        cliReadSingleLineReply(fd,0);
        return 1;
    case '+':
        return cliReadSingleLineReply(fd,0);
    case ':':
        printf("(integer) ");
        return cliReadSingleLineReply(fd,0);
    case '$':
        return cliReadBulkReply(fd);
    case '*':
        return cliReadMultiBulkReply(fd);
    default:
        printf("protocol error, got '%c' as reply type byte\n", type);
        return 1;
    }
}

static int selectDb(int fd) {
    int retval;
    sds cmd;
    char type;

    if (config.dbnum == 0)
        return 0;

    cmd = sdsempty();
    cmd = sdscatprintf(cmd,"SELECT %d\r\n",config.dbnum);
    anetWrite(fd,cmd,sdslen(cmd));
    anetRead(fd,&type,1);
    if (type <= 0 || type != '+') return 1;
    retval = cliReadSingleLineReply(fd,1);
    if (retval) {
        return retval;
    }
    return 0;
}

static int cliSendCommand(int argc, char **argv) {
    struct redisCommand *rc = lookupCommand(argv[0]);
    int fd, j, retval = 0;
    int read_forever = 0;
    sds cmd;

    if (!rc) {
        fprintf(stderr,"Unknown command '%s'\n",argv[0]);
        return 1;
    }

    if ((rc->arity > 0 && argc != rc->arity) ||
        (rc->arity < 0 && argc < -rc->arity)) {
            fprintf(stderr,"Wrong number of arguments for '%s'\n",rc->name);
            return 1;
    }
    if (!strcasecmp(rc->name,"monitor")) read_forever = 1;
    if ((fd = cliConnect()) == -1) return 1;

    /* Select db number */
    retval = selectDb(fd);
    if (retval) {
        fprintf(stderr,"Error setting DB num\n");
        return 1;
    }

    while(config.repeat--) {
        /* Build the command to send */
        cmd = sdsempty();
        if (rc->flags & REDIS_CMD_MULTIBULK) {
            cmd = sdscatprintf(cmd,"*%d\r\n",argc);
            for (j = 0; j < argc; j++) {
                cmd = sdscatprintf(cmd,"$%lu\r\n",
                    (unsigned long)sdslen(argv[j]));
                cmd = sdscatlen(cmd,argv[j],sdslen(argv[j]));
                cmd = sdscatlen(cmd,"\r\n",2);
            }
        } else {
            for (j = 0; j < argc; j++) {
                if (j != 0) cmd = sdscat(cmd," ");
                if (j == argc-1 && rc->flags & REDIS_CMD_BULK) {
                    cmd = sdscatprintf(cmd,"%lu",
                        (unsigned long)sdslen(argv[j]));
                } else {
                    cmd = sdscatlen(cmd,argv[j],sdslen(argv[j]));
                }
            }
            cmd = sdscat(cmd,"\r\n");
            if (rc->flags & REDIS_CMD_BULK) {
                cmd = sdscatlen(cmd,argv[argc-1],sdslen(argv[argc-1]));
                cmd = sdscatlen(cmd,"\r\n",2);
            }
        }
        anetWrite(fd,cmd,sdslen(cmd));
        sdsfree(cmd);

        while (read_forever) {
            cliReadSingleLineReply(fd,0);
        }

        retval = cliReadReply(fd);
        if (retval) {
            return retval;
        }
    }
    return 0;
}

static int parseOptions(int argc, char **argv) {
    int i;

    for (i = 1; i < argc; i++) {
        int lastarg = i==argc-1;

        if (!strcmp(argv[i],"-h") && !lastarg) {
            char *ip = zmalloc(32);
            if (anetResolve(NULL,argv[i+1],ip) == ANET_ERR) {
                printf("Can't resolve %s\n", argv[i]);
                exit(1);
            }
            config.hostip = ip;
            i++;
        } else if (!strcmp(argv[i],"-h") && lastarg) {
            usage();
        } else if (!strcmp(argv[i],"-p") && !lastarg) {
            config.hostport = atoi(argv[i+1]);
            i++;
        } else if (!strcmp(argv[i],"-r") && !lastarg) {
            config.repeat = strtoll(argv[i+1],NULL,10);
            i++;
        } else if (!strcmp(argv[i],"-n") && !lastarg) {
            config.dbnum = atoi(argv[i+1]);
            i++;
        } else if (!strcmp(argv[i],"-i")) {
            config.interactive = 1;
        } else {
            break;
        }
    }
    return i;
}

static sds readArgFromStdin(void) {
    char buf[1024];
    sds arg = sdsempty();

    while(1) {
        int nread = read(fileno(stdin),buf,1024);

        if (nread == 0) break;
        else if (nread == -1) {
            perror("Reading from standard input");
            exit(1);
        }
        arg = sdscatlen(arg,buf,nread);
    }
    return arg;
}

static void usage() {
    fprintf(stderr, "usage: redis-cli [-h host] [-p port] [-r repeat_times] [-n db_num] [-i] cmd arg1 arg2 arg3 ... argN\n");
    fprintf(stderr, "usage: echo \"argN\" | redis-cli [-h host] [-p port] [-r repeat_times] [-n db_num] cmd arg1 arg2 ... arg(N-1)\n");
    fprintf(stderr, "\nIf a pipe from standard input is detected this data is used as last argument.\n\n");
    fprintf(stderr, "example: cat /etc/passwd | redis-cli set my_passwd\n");
    fprintf(stderr, "example: redis-cli get my_passwd\n");
    fprintf(stderr, "example: redis-cli -r 100 lpush mylist x\n");
    fprintf(stderr, "\nRun in interactive mode: redis-cli -i or just don't pass any command\n");
    exit(1);
}

/* Turn the plain C strings into Sds strings */
static char **convertToSds(int count, char** args) {
  int j;
  char **sds = zmalloc(sizeof(char*)*count+1);

  for(j = 0; j < count; j++)
    sds[j] = sdsnew(args[j]);

  return sds;
}

static char *prompt(char *line, int size) {
    char *retval;

    do {
        printf(">> ");
        retval = fgets(line, size, stdin);
    } while (retval && *line == '\n');
    line[strlen(line) - 1] = '\0';

    return retval;
}

static void repl() {
    int size = 4096, max = size >> 1, argc;
    char buffer[size];
    char *line = buffer;
    char **ap, *args[max];

    while (prompt(line, size)) {
        argc = 0;

        for (ap = args; (*ap = strsep(&line, " \t")) != NULL;) {
            if (**ap != '\0') {
                if (argc >= max) break;
                if (strcasecmp(*ap,"quit") == 0 || strcasecmp(*ap,"exit") == 0)
                    exit(0);
                ap++;
                argc++;
            }
        }

        config.repeat = 1;
        cliSendCommand(argc, convertToSds(argc, args));
        line = buffer;
    }

    exit(0);
}

int main(int argc, char **argv) {
    int firstarg;
    char **argvcopy;
    struct redisCommand *rc;

    config.hostip = "127.0.0.1";
    config.hostport = 6379;
    config.repeat = 1;
    config.dbnum = 0;
    config.interactive = 0;

    firstarg = parseOptions(argc,argv);
    argc -= firstarg;
    argv += firstarg;

    if (argc == 0 || config.interactive == 1) repl();

    argvcopy = convertToSds(argc, argv);

    /* Read the last argument from stdandard input if needed */
    if ((rc = lookupCommand(argv[0])) != NULL) {
      if (rc->arity > 0 && argc == rc->arity-1) {
        sds lastarg = readArgFromStdin();
        argvcopy[argc] = lastarg;
        argc++;
      }
    }

    return cliSendCommand(argc, argvcopy);
}
Commit	Line	Data
ed9b544e	1	/* Redis CLI (command line interface)
ed9b544e	2	*
12d090d2	3	* Copyright (c) 2009-2010, Salvatore Sanfilippo <antirez at gmail dot com>
ed9b544e	4	* All rights reserved.
	5	*
	6	* Redistribution and use in source and binary forms, with or without
	7	* modification, are permitted provided that the following conditions are met:
	8	*
	9	* * Redistributions of source code must retain the above copyright notice,
	10	* this list of conditions and the following disclaimer.
	11	* * Redistributions in binary form must reproduce the above copyright
	12	* notice, this list of conditions and the following disclaimer in the
	13	* documentation and/or other materials provided with the distribution.
	14	* * Neither the name of Redis nor the names of its contributors may be used
	15	* to endorse or promote products derived from this software without
	16	* specific prior written permission.
	17	*
	18	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
	19	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	20	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	21	* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
	22	* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
	23	* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	24	* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	25	* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
	26	* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	27	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
	28	* POSSIBILITY OF SUCH DAMAGE.
	29	*/
	30
23d4709d	31	#include "fmacros.h"
23d4709d	32
ed9b544e	33	#include <stdio.h>
	34	#include <string.h>
	35	#include <stdlib.h>
	36	#include <unistd.h>
	37
	38	#include "anet.h"
	39	#include "sds.h"
	40	#include "adlist.h"
	41	#include "zmalloc.h"
	42
	43	#define REDIS_CMD_INLINE 1
	44	#define REDIS_CMD_BULK 2
e17e0b05	45	#define REDIS_CMD_MULTIBULK 4
ed9b544e	46
	47	#define REDIS_NOTUSED(V) ((void) V)
	48
	49	static struct config {
	50	char *hostip;
	51	int hostport;
5762b7f0	52	long repeat;
62e920df	53	int dbnum;
6cf5882c	54	int interactive;
ed9b544e	55	} config;
	56
	57	struct redisCommand {
	58	char *name;
	59	int arity;
	60	int flags;
	61	};
	62
	63	static struct redisCommand cmdTable[] = {
c937aa89	64	{"get",2,REDIS_CMD_INLINE},
	65	{"set",3,REDIS_CMD_BULK},
	66	{"setnx",3,REDIS_CMD_BULK},
4b00bebd	67	{"append",3,REDIS_CMD_BULK},
39191553	68	{"substr",4,REDIS_CMD_INLINE},
5109cdff	69	{"del",-2,REDIS_CMD_INLINE},
c937aa89	70	{"exists",2,REDIS_CMD_INLINE},
	71	{"incr",2,REDIS_CMD_INLINE},
	72	{"decr",2,REDIS_CMD_INLINE},
	73	{"rpush",3,REDIS_CMD_BULK},
	74	{"lpush",3,REDIS_CMD_BULK},
	75	{"rpop",2,REDIS_CMD_INLINE},
	76	{"lpop",2,REDIS_CMD_INLINE},
b177fd30	77	{"brpop",-3,REDIS_CMD_INLINE},
b177fd30	78	{"blpop",-3,REDIS_CMD_INLINE},
c937aa89	79	{"llen",2,REDIS_CMD_INLINE},
	80	{"lindex",3,REDIS_CMD_INLINE},
	81	{"lset",4,REDIS_CMD_BULK},
	82	{"lrange",4,REDIS_CMD_INLINE},
	83	{"ltrim",4,REDIS_CMD_INLINE},
	84	{"lrem",4,REDIS_CMD_BULK},
0f5f7e9a	85	{"rpoplpush",3,REDIS_CMD_BULK},
c937aa89	86	{"sadd",3,REDIS_CMD_BULK},
c937aa89	87	{"srem",3,REDIS_CMD_BULK},
a4460ef4	88	{"smove",4,REDIS_CMD_BULK},
c937aa89	89	{"sismember",3,REDIS_CMD_BULK},
c937aa89	90	{"scard",2,REDIS_CMD_INLINE},
12fea928	91	{"spop",2,REDIS_CMD_INLINE},
2abb95a9	92	{"srandmember",2,REDIS_CMD_INLINE},
c937aa89	93	{"sinter",-2,REDIS_CMD_INLINE},
c937aa89	94	{"sinterstore",-3,REDIS_CMD_INLINE},
40d224a9	95	{"sunion",-2,REDIS_CMD_INLINE},
40d224a9	96	{"sunionstore",-3,REDIS_CMD_INLINE},
f4f56e1d	97	{"sdiff",-2,REDIS_CMD_INLINE},
f4f56e1d	98	{"sdiffstore",-3,REDIS_CMD_INLINE},
c937aa89	99	{"smembers",2,REDIS_CMD_INLINE},
fd8ccf44	100	{"zadd",4,REDIS_CMD_BULK},
7db723ad	101	{"zincrby",4,REDIS_CMD_BULK},
1b7106e7	102	{"zrem",3,REDIS_CMD_BULK},
1807985b	103	{"zremrangebyscore",4,REDIS_CMD_INLINE},
752da584	104	{"zrange",-4,REDIS_CMD_INLINE},
3589e1a7	105	{"zrank",3,REDIS_CMD_BULK},
80181f78	106	{"zrangebyscore",-4,REDIS_CMD_INLINE},
f44dd428	107	{"zcount",4,REDIS_CMD_INLINE},
752da584	108	{"zrevrange",-4,REDIS_CMD_INLINE},
3c41331e	109	{"zcard",2,REDIS_CMD_INLINE},
6e333bbe	110	{"zscore",3,REDIS_CMD_BULK},
c937aa89	111	{"incrby",3,REDIS_CMD_INLINE},
c937aa89	112	{"decrby",3,REDIS_CMD_INLINE},
a431eb74	113	{"getset",3,REDIS_CMD_BULK},
c937aa89	114	{"randomkey",1,REDIS_CMD_INLINE},
	115	{"select",2,REDIS_CMD_INLINE},
	116	{"move",3,REDIS_CMD_INLINE},
	117	{"rename",3,REDIS_CMD_INLINE},
	118	{"renamenx",3,REDIS_CMD_INLINE},
	119	{"keys",2,REDIS_CMD_INLINE},
	120	{"dbsize",1,REDIS_CMD_INLINE},
	121	{"ping",1,REDIS_CMD_INLINE},
	122	{"echo",2,REDIS_CMD_BULK},
	123	{"save",1,REDIS_CMD_INLINE},
	124	{"bgsave",1,REDIS_CMD_INLINE},
9d65a1bb	125	{"rewriteaof",1,REDIS_CMD_INLINE},
9d65a1bb	126	{"bgrewriteaof",1,REDIS_CMD_INLINE},
c937aa89	127	{"shutdown",1,REDIS_CMD_INLINE},
	128	{"lastsave",1,REDIS_CMD_INLINE},
	129	{"type",2,REDIS_CMD_INLINE},
	130	{"flushdb",1,REDIS_CMD_INLINE},
	131	{"flushall",1,REDIS_CMD_INLINE},
	132	{"sort",-2,REDIS_CMD_INLINE},
	133	{"info",1,REDIS_CMD_INLINE},
	134	{"mget",-2,REDIS_CMD_INLINE},
3305306f	135	{"expire",3,REDIS_CMD_INLINE},
802e8373	136	{"expireat",3,REDIS_CMD_INLINE},
fd88489a	137	{"ttl",2,REDIS_CMD_INLINE},
321b0e13	138	{"slaveof",3,REDIS_CMD_INLINE},
333298da	139	{"debug",-2,REDIS_CMD_INLINE},
8165a5f2	140	{"mset",-3,REDIS_CMD_MULTIBULK},
8165a5f2	141	{"msetnx",-3,REDIS_CMD_MULTIBULK},
621d5c19	142	{"monitor",1,REDIS_CMD_INLINE},
6fa24622 DJMM	143	{"multi",1,REDIS_CMD_INLINE},
	144	{"exec",1,REDIS_CMD_MULTIBULK},
	145	{"discard",1,REDIS_CMD_INLINE},
ed9b544e	146	{NULL,0,0}
	147	};
	148
c937aa89	149	static int cliReadReply(int fd);
a9158272	150	static void usage();
c937aa89	151
ed9b544e	152	static struct redisCommand lookupCommand(char name) {
	153	int j = 0;
	154	while(cmdTable[j].name != NULL) {
	155	if (!strcasecmp(name,cmdTable[j].name)) return &cmdTable[j];
	156	j++;
	157	}
	158	return NULL;
	159	}
	160
	161	static int cliConnect(void) {
	162	char err[ANET_ERR_LEN];
6fa24622	163	static int fd = ANET_ERR;
ed9b544e	164
ed9b544e	165	if (fd == ANET_ERR) {
6fa24622 DJMM	166	fd = anetTcpConnect(err,config.hostip,config.hostport);
	167	if (fd == ANET_ERR) {
	168	fprintf(stderr, "Could not connect to Redis at %s:%d: %s", config.hostip, config.hostport, err);
	169	return -1;
	170	}
	171	anetTcpNoDelay(NULL,fd);
ed9b544e	172	}
ed9b544e	173	return fd;
	174	}
	175
	176	static sds cliReadLine(int fd) {
	177	sds line = sdsempty();
	178
	179	while(1) {
	180	char c;
b91f03a4	181	ssize_t ret;
ed9b544e	182
b91f03a4 LH	183	ret = read(fd,&c,1);
b91f03a4 LH	184	if (ret == -1) {
ed9b544e	185	sdsfree(line);
ed9b544e	186	return NULL;
b91f03a4	187	} else if ((ret == 0) \|\| (c == '\n')) {
ed9b544e	188	break;
	189	} else {
	190	line = sdscatlen(line,&c,1);
	191	}
	192	}
	193	return sdstrim(line,"\r\n");
	194	}
	195
62e920df	196	static int cliReadSingleLineReply(int fd, int quiet) {
ed9b544e	197	sds reply = cliReadLine(fd);
	198
	199	if (reply == NULL) return 1;
62e920df	200	if (!quiet)
62e920df	201	printf("%s\n", reply);
621d5c19	202	sdsfree(reply);
ed9b544e	203	return 0;
	204	}
	205
c937aa89	206	static int cliReadBulkReply(int fd) {
ed9b544e	207	sds replylen = cliReadLine(fd);
ed9b544e	208	char *reply, crlf[2];
c937aa89	209	int bulklen;
ed9b544e	210
ed9b544e	211	if (replylen == NULL) return 1;
ed9b544e	212	bulklen = atoi(replylen);
c937aa89	213	if (bulklen == -1) {
ed9b544e	214	sdsfree(replylen);
060f6be6	215	printf("(nil)\n");
ed9b544e	216	return 0;
ed9b544e	217	}
ed9b544e	218	reply = zmalloc(bulklen);
	219	anetRead(fd,reply,bulklen);
	220	anetRead(fd,crlf,2);
	221	if (bulklen && fwrite(reply,bulklen,1,stdout) == 0) {
	222	zfree(reply);
	223	return 1;
	224	}
c937aa89	225	if (isatty(fileno(stdout)) && reply[bulklen-1] != '\n')
ed9b544e	226	printf("\n");
ed9b544e	227	zfree(reply);
c937aa89	228	return 0;
ed9b544e	229	}
	230
	231	static int cliReadMultiBulkReply(int fd) {
	232	sds replylen = cliReadLine(fd);
	233	int elements, c = 1;
	234
	235	if (replylen == NULL) return 1;
c937aa89	236	elements = atoi(replylen);
c937aa89	237	if (elements == -1) {
ed9b544e	238	sdsfree(replylen);
	239	printf("(nil)\n");
	240	return 0;
	241	}
c937aa89	242	if (elements == 0) {
	243	printf("(empty list or set)\n");
	244	}
ed9b544e	245	while(elements--) {
ed9b544e	246	printf("%d. ", c);
c937aa89	247	if (cliReadReply(fd)) return 1;
ed9b544e	248	c++;
	249	}
	250	return 0;
	251	}
	252
c937aa89	253	static int cliReadReply(int fd) {
	254	char type;
	255
	256	if (anetRead(fd,&type,1) <= 0) exit(1);
	257	switch(type) {
	258	case '-':
	259	printf("(error) ");
62e920df	260	cliReadSingleLineReply(fd,0);
c937aa89	261	return 1;
c937aa89	262	case '+':
62e920df	263	return cliReadSingleLineReply(fd,0);
c937aa89	264	case ':':
443c6409	265	printf("(integer) ");
62e920df	266	return cliReadSingleLineReply(fd,0);
c937aa89	267	case '$':
	268	return cliReadBulkReply(fd);
	269	case '*':
	270	return cliReadMultiBulkReply(fd);
	271	default:
	272	printf("protocol error, got '%c' as reply type byte\n", type);
	273	return 1;
	274	}
	275	}
	276
6cf5882c	277	static int selectDb(int fd) {
62e920df	278	int retval;
	279	sds cmd;
	280	char type;
	281
	282	if (config.dbnum == 0)
	283	return 0;
	284
	285	cmd = sdsempty();
	286	cmd = sdscatprintf(cmd,"SELECT %d\r\n",config.dbnum);
	287	anetWrite(fd,cmd,sdslen(cmd));
	288	anetRead(fd,&type,1);
	289	if (type <= 0 \|\| type != '+') return 1;
	290	retval = cliReadSingleLineReply(fd,1);
	291	if (retval) {
6cf5882c	292	return retval;
62e920df	293	}
	294	return 0;
	295	}
	296
ed9b544e	297	static int cliSendCommand(int argc, char **argv) {
	298	struct redisCommand *rc = lookupCommand(argv[0]);
	299	int fd, j, retval = 0;
621d5c19	300	int read_forever = 0;
5762b7f0	301	sds cmd;
ed9b544e	302
	303	if (!rc) {
	304	fprintf(stderr,"Unknown command '%s'\n",argv[0]);
	305	return 1;
	306	}
	307
	308	if ((rc->arity > 0 && argc != rc->arity) \|\|
a74f2af6	309	(rc->arity < 0 && argc < -rc->arity)) {
ed9b544e	310	fprintf(stderr,"Wrong number of arguments for '%s'\n",rc->name);
	311	return 1;
	312	}
621d5c19	313	if (!strcasecmp(rc->name,"monitor")) read_forever = 1;
ed9b544e	314	if ((fd = cliConnect()) == -1) return 1;
ed9b544e	315
62e920df	316	/* Select db number */
	317	retval = selectDb(fd);
	318	if (retval) {
	319	fprintf(stderr,"Error setting DB num\n");
	320	return 1;
	321	}
6cf5882c	322
5762b7f0	323	while(config.repeat--) {
	324	/* Build the command to send */
	325	cmd = sdsempty();
	326	if (rc->flags & REDIS_CMD_MULTIBULK) {
	327	cmd = sdscatprintf(cmd,"*%d\r\n",argc);
	328	for (j = 0; j < argc; j++) {
83c6a618	329	cmd = sdscatprintf(cmd,"$%lu\r\n",
83c6a618	330	(unsigned long)sdslen(argv[j]));
8165a5f2	331	cmd = sdscatlen(cmd,argv[j],sdslen(argv[j]));
5762b7f0	332	cmd = sdscatlen(cmd,"\r\n",2);
	333	}
	334	} else {
	335	for (j = 0; j < argc; j++) {
	336	if (j != 0) cmd = sdscat(cmd," ");
	337	if (j == argc-1 && rc->flags & REDIS_CMD_BULK) {
83c6a618	338	cmd = sdscatprintf(cmd,"%lu",
83c6a618	339	(unsigned long)sdslen(argv[j]));
5762b7f0	340	} else {
	341	cmd = sdscatlen(cmd,argv[j],sdslen(argv[j]));
	342	}
	343	}
	344	cmd = sdscat(cmd,"\r\n");
	345	if (rc->flags & REDIS_CMD_BULK) {
	346	cmd = sdscatlen(cmd,argv[argc-1],sdslen(argv[argc-1]));
	347	cmd = sdscatlen(cmd,"\r\n",2);
8165a5f2	348	}
ed9b544e	349	}
5762b7f0	350	anetWrite(fd,cmd,sdslen(cmd));
5762b7f0	351	sdsfree(cmd);
621d5c19	352
	353	while (read_forever) {
	354	cliReadSingleLineReply(fd,0);
	355	}
	356
5762b7f0	357	retval = cliReadReply(fd);
5762b7f0	358	if (retval) {
5762b7f0	359	return retval;
8165a5f2	360	}
ed9b544e	361	}
ed9b544e	362	return 0;
	363	}
	364
	365	static int parseOptions(int argc, char **argv) {
	366	int i;
	367
	368	for (i = 1; i < argc; i++) {
	369	int lastarg = i==argc-1;
6cf5882c	370
ed9b544e	371	if (!strcmp(argv[i],"-h") && !lastarg) {
	372	char *ip = zmalloc(32);
	373	if (anetResolve(NULL,argv[i+1],ip) == ANET_ERR) {
	374	printf("Can't resolve %s\n", argv[i]);
	375	exit(1);
	376	}
	377	config.hostip = ip;
	378	i++;
a9158272	379	} else if (!strcmp(argv[i],"-h") && lastarg) {
a9158272	380	usage();
ed9b544e	381	} else if (!strcmp(argv[i],"-p") && !lastarg) {
	382	config.hostport = atoi(argv[i+1]);
	383	i++;
5762b7f0	384	} else if (!strcmp(argv[i],"-r") && !lastarg) {
	385	config.repeat = strtoll(argv[i+1],NULL,10);
	386	i++;
62e920df	387	} else if (!strcmp(argv[i],"-n") && !lastarg) {
	388	config.dbnum = atoi(argv[i+1]);
	389	i++;
6cf5882c MMDJ	390	} else if (!strcmp(argv[i],"-i")) {
6cf5882c MMDJ	391	config.interactive = 1;
ed9b544e	392	} else {
	393	break;
	394	}
	395	}
	396	return i;
	397	}
	398
	399	static sds readArgFromStdin(void) {
	400	char buf[1024];
	401	sds arg = sdsempty();
	402
	403	while(1) {
	404	int nread = read(fileno(stdin),buf,1024);
	405
	406	if (nread == 0) break;
	407	else if (nread == -1) {
	408	perror("Reading from standard input");
	409	exit(1);
	410	}
	411	arg = sdscatlen(arg,buf,nread);
	412	}
	413	return arg;
	414	}
	415
a9158272	416	static void usage() {
6cf5882c	417	fprintf(stderr, "usage: redis-cli [-h host] [-p port] [-r repeat_times] [-n db_num] [-i] cmd arg1 arg2 arg3 ... argN\n");
a9158272	418	fprintf(stderr, "usage: echo \"argN\" \| redis-cli [-h host] [-p port] [-r repeat_times] [-n db_num] cmd arg1 arg2 ... arg(N-1)\n");
	419	fprintf(stderr, "\nIf a pipe from standard input is detected this data is used as last argument.\n\n");
	420	fprintf(stderr, "example: cat /etc/passwd \| redis-cli set my_passwd\n");
	421	fprintf(stderr, "example: redis-cli get my_passwd\n");
	422	fprintf(stderr, "example: redis-cli -r 100 lpush mylist x\n");
d239ec59	423	fprintf(stderr, "\nRun in interactive mode: redis-cli -i or just don't pass any command\n");
a9158272	424	exit(1);
	425	}
	426
6cf5882c MMDJ	427	/* Turn the plain C strings into Sds strings */
	428	static char convertToSds(int count, char args) {
	429	int j;
	430	char *sds = zmalloc(sizeof(char)*count+1);
	431
	432	for(j = 0; j < count; j++)
	433	sds[j] = sdsnew(args[j]);
	434
	435	return sds;
	436	}
	437
	438	static char prompt(char line, int size) {
	439	char *retval;
	440
	441	do {
	442	printf(">> ");
	443	retval = fgets(line, size, stdin);
	444	} while (retval && *line == '\n');
e3c7f002 DJMM	445	line[strlen(line) - 1] = '\0';
e3c7f002 DJMM	446
6cf5882c MMDJ	447	return retval;
	448	}
	449
	450	static void repl() {
	451	int size = 4096, max = size >> 1, argc;
	452	char buffer[size];
	453	char *line = buffer;
	454	char *ap, args[max];
	455
	456	while (prompt(line, size)) {
	457	argc = 0;
	458
	459	for (ap = args; (*ap = strsep(&line, " \t")) != NULL;) {
	460	if (**ap != '\0') {
	461	if (argc >= max) break;
2f4d2242	462	if (strcasecmp(ap,"quit") == 0 \|\| strcasecmp(ap,"exit") == 0)
2f4d2242	463	exit(0);
6cf5882c MMDJ	464	ap++;
	465	argc++;
	466	}
	467	}
	468
	469	config.repeat = 1;
	470	cliSendCommand(argc, convertToSds(argc, args));
	471	line = buffer;
	472	}
	473
	474	exit(0);
	475	}
	476
ed9b544e	477	int main(int argc, char **argv) {
6cf5882c	478	int firstarg;
ed9b544e	479	char **argvcopy;
2073a849	480	struct redisCommand *rc;
ed9b544e	481
	482	config.hostip = "127.0.0.1";
	483	config.hostport = 6379;
5762b7f0	484	config.repeat = 1;
62e920df	485	config.dbnum = 0;
6cf5882c	486	config.interactive = 0;
ed9b544e	487
	488	firstarg = parseOptions(argc,argv);
	489	argc -= firstarg;
	490	argv += firstarg;
ed9b544e	491
d239ec59	492	if (argc == 0 \|\| config.interactive == 1) repl();
ed9b544e	493
6cf5882c MMDJ	494	argvcopy = convertToSds(argc, argv);
6cf5882c MMDJ	495
2073a849	496	/* Read the last argument from stdandard input if needed */
2073a849	497	if ((rc = lookupCommand(argv[0])) != NULL) {
6cf5882c MMDJ	498	if (rc->arity > 0 && argc == rc->arity-1) {
	499	sds lastarg = readArgFromStdin();
	500	argvcopy[argc] = lastarg;
	501	argc++;
	502	}
2073a849	503	}
2073a849	504
ed9b544e	505	return cliSendCommand(argc, argvcopy);
ed9b544e	506	}