#include <stdlib.h>
#include <unistd.h>
#include <ctype.h>
+#include <errno.h>
+#include <sys/stat.h>
#include "anet.h"
#include "sds.h"
int hostport;
long repeat;
int dbnum;
- int argn_from_stdin;
+ int interactive;
int shutdown;
int monitor_mode;
int pubsub_mode;
static int cliReadReply(int fd);
static void usage();
-static int cliConnect(void) {
+/* Connect to the client. If force is not zero the connection is performed
+ * even if there is already a connected socket. */
+static int cliConnect(int force) {
char err[ANET_ERR_LEN];
static int fd = ANET_ERR;
- if (fd == ANET_ERR) {
+ if (fd == ANET_ERR || force) {
+ if (force) close(fd);
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);
ssize_t ret;
ret = read(fd,&c,1);
- if (ret == -1) {
+ if (ret <= 0) {
sdsfree(line);
return NULL;
} else if ((ret == 0) || (c == '\n')) {
static int cliReadMultiBulkReply(int fd) {
sds replylen = cliReadLine(fd);
int elements, c = 1;
+ int retval = 0;
if (replylen == NULL) return 1;
elements = atoi(replylen);
}
while(elements--) {
if (config.tty) printf("%d. ", c);
- if (cliReadReply(fd)) return 1;
+ if (cliReadReply(fd)) retval = 1;
if (elements) printf("%c",config.mb_sep);
c++;
}
- return 0;
+ return retval;
}
static int cliReadReply(int fd) {
char type;
+ int nread;
- if (anetRead(fd,&type,1) <= 0) {
+ if ((nread = anetRead(fd,&type,1)) <= 0) {
if (config.shutdown) return 0;
- exit(1);
+ if (config.interactive &&
+ (nread == 0 || (nread == -1 && errno == ECONNRESET)))
+ {
+ return ECONNRESET;
+ } else {
+ printf("I/O error while reading from socket: %s",strerror(errno));
+ exit(1);
+ }
}
switch(type) {
case '-':
case '*':
return cliReadMultiBulkReply(fd);
default:
- printf("protocol error, got '%c' as reply type byte\n", type);
+ printf("protocol error, got '%c' as reply type byte", type);
return 1;
}
}
if (!strcasecmp(command,"monitor")) config.monitor_mode = 1;
if (!strcasecmp(command,"subscribe") ||
!strcasecmp(command,"psubscribe")) config.pubsub_mode = 1;
- if ((fd = cliConnect()) == -1) return 1;
+ if ((fd = cliConnect(0)) == -1) return 1;
/* Select db number */
retval = selectDb(fd);
while(repeat--) {
anetWrite(fd,cmd,sdslen(cmd));
while (config.monitor_mode) {
- cliReadSingleLineReply(fd,0);
+ if (cliReadSingleLineReply(fd,0)) exit(1);
+ printf("\n");
}
if (config.pubsub_mode) {
}
retval = cliReadReply(fd);
- if (retval) {
- return retval;
- }
- if (!config.raw_output && config.tty) {
- printf("\n");
- }
+ if (!config.raw_output && config.tty) printf("\n");
+ if (retval) return retval;
}
return 0;
}
"by default when redis-cli is executed without a command to execute.\n"
);
} else if (!strcmp(argv[i],"-c")) {
- config.argn_from_stdin = 1;
+ fprintf(stderr,
+"Reading last argument from standard input using -c is deprecated.\n"
+"When standard input is connected to a pipe or regular file, it is\n"
+"automatically used as last argument.\n"
+ );
} else if (!strcmp(argv[i],"-v")) {
printf("redis-cli shipped with Redis verison %s\n", REDIS_VERSION);
exit(0);
static void usage() {
fprintf(stderr, "usage: redis-cli [-iv] [-h host] [-p port] [-a authpw] [-r repeat_times] [-n db_num] cmd arg1 arg2 arg3 ... argN\n");
- fprintf(stderr, "usage: echo \"argN\" | redis-cli -c [-h host] [-p port] [-a authpw] [-r repeat_times] [-n db_num] cmd arg1 arg2 ... arg(N-1)\n");
+ fprintf(stderr, "usage: echo \"argN\" | redis-cli [-h host] [-p port] [-a authpw] [-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");
return sds;
}
-static char **splitArguments(char *line, int *argc) {
- char *p = line;
- char *current = NULL;
- char **vector = NULL;
-
- *argc = 0;
- while(1) {
- /* skip blanks */
- while(*p && isspace(*p)) p++;
- if (*p) {
- /* get a token */
- int inq=0; /* set to 1 if we are in "quotes" */
- int done=0;
-
- if (current == NULL) current = sdsempty();
- while(!done) {
- if (inq) {
- if (*p == '\\' && *(p+1)) {
- char c;
-
- p++;
- switch(*p) {
- case 'n': c = '\n'; break;
- case 'r': c = '\r'; break;
- case 't': c = '\t'; break;
- case 'b': c = '\b'; break;
- case 'a': c = '\a'; break;
- default: c = *p; break;
- }
- current = sdscatlen(current,&c,1);
- } else if (*p == '"') {
- /* closing quote must be followed by a space */
- if (*(p+1) && !isspace(*(p+1))) goto err;
- done=1;
- } else if (!*p) {
- /* unterminated quotes */
- goto err;
- } else {
- current = sdscatlen(current,p,1);
- }
- } else {
- switch(*p) {
- case ' ':
- case '\n':
- case '\r':
- case '\t':
- case '\0':
- done=1;
- break;
- case '"':
- inq=1;
- break;
- default:
- current = sdscatlen(current,p,1);
- break;
- }
- }
- if (*p) p++;
- }
- /* add the token to the vector */
- vector = zrealloc(vector,((*argc)+1)*sizeof(char*));
- vector[*argc] = current;
- (*argc)++;
- current = NULL;
- } else {
- return vector;
- }
- }
-
-err:
- while(*argc--)
- sdsfree(vector[*argc]);
- zfree(vector);
- if (current) sdsfree(current);
- return NULL;
-}
-
#define LINE_BUFLEN 4096
static void repl() {
int argc, j;
- char *line, **argv;
+ char *line;
+ sds *argv;
+ config.interactive = 1;
while((line = linenoise("redis> ")) != NULL) {
if (line[0] != '\0') {
- argv = splitArguments(line,&argc);
+ argv = sdssplitargs(line,&argc);
linenoiseHistoryAdd(line);
if (config.historyfile) linenoiseHistorySave(config.historyfile);
if (argv == NULL) {
} else if (argc > 0) {
if (strcasecmp(argv[0],"quit") == 0 ||
strcasecmp(argv[0],"exit") == 0)
- exit(0);
- else
- cliSendCommand(argc, argv, 1);
+ {
+ exit(0);
+ } else {
+ int err;
+
+ if ((err = cliSendCommand(argc, argv, 1)) != 0) {
+ if (err == ECONNRESET) {
+ printf("Reconnecting... ");
+ fflush(stdout);
+ if (cliConnect(1) == -1) exit(1);
+ printf("OK\n");
+ cliSendCommand(argc,argv,1);
+ }
+ }
+ }
}
/* Free the argument vector */
for (j = 0; j < argc; j++)
exit(0);
}
+static int noninteractive(int argc, char **argv) {
+ int retval = 0;
+ struct stat s;
+ fstat(fileno(stdin), &s);
+ if (S_ISFIFO(s.st_mode) || S_ISREG(s.st_mode)) { /* pipe, regular file */
+ argv = zrealloc(argv, (argc+1)*sizeof(char*));
+ argv[argc] = readArgFromStdin();
+ retval = cliSendCommand(argc+1, argv, config.repeat);
+ } else {
+ /* stdin is probably a tty, can be tested with S_ISCHR(s.st_mode) */
+ retval = cliSendCommand(argc, argv, config.repeat);
+ }
+ return retval;
+}
+
int main(int argc, char **argv) {
int firstarg;
- char **argvcopy;
config.hostip = "127.0.0.1";
config.hostport = 6379;
config.repeat = 1;
config.dbnum = 0;
- config.argn_from_stdin = 0;
+ config.interactive = 0;
config.shutdown = 0;
config.monitor_mode = 0;
config.pubsub_mode = 0;
/* Start interactive mode when no command is provided */
if (argc == 0) repl();
-
- argvcopy = convertToSds(argc+1, argv);
- if (config.argn_from_stdin) {
- sds lastarg = readArgFromStdin();
- argvcopy[argc] = lastarg;
- argc++;
- }
- return cliSendCommand(argc, argvcopy, config.repeat);
+ /* Otherwise, we have some arguments to execute */
+ return noninteractive(argc,convertToSds(argc,argv));
}
projects / redis.git / blobdiff