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/*
* Copyright (C) 2008 The Android Open Source Project
*
* 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.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <signal.h>
#include <errno.h>
#include <fcntl.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <sys/select.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/un.h>
#include <cutils/sockets.h>
#include <private/android_filesystem_config.h>
static void usage(char *progname);
static int do_monitor(int sock, int stop_after_cmd);
static int do_cmd(int sock, int argc, char **argv);
int main(int argc, char **argv) {
int sock;
if (argc < 2)
usage(argv[0]);
if ((sock = socket_local_client("vold",
ANDROID_SOCKET_NAMESPACE_RESERVED,
SOCK_STREAM)) < 0) {
fprintf(stderr, "Error connecting (%s)\n", strerror(errno));
exit(4);
}
if (!strcmp(argv[1], "monitor"))
exit(do_monitor(sock, 0));
exit(do_cmd(sock, argc, argv));
}
static int do_cmd(int sock, int argc, char **argv) {
char final_cmd[255] = "0 "; /* 0 is a (now required) sequence number */
int i;
int ret;
for (i = 1; i < argc; i++) {
char *cmp;
if (!index(argv[i], ' '))
asprintf(&cmp, "%s%s", argv[i], (i == (argc -1)) ? "" : " ");
else
asprintf(&cmp, "\"%s\"%s", argv[i], (i == (argc -1)) ? "" : " ");
ret = strlcat(final_cmd, cmp, sizeof(final_cmd));
if (ret >= sizeof(final_cmd))
abort();
free(cmp);
}
if (write(sock, final_cmd, strlen(final_cmd) + 1) < 0) {
perror("write");
return errno;
}
return do_monitor(sock, 1);
}
static int do_monitor(int sock, int stop_after_cmd) {
char *buffer = malloc(4096);
if (!stop_after_cmd)
printf("[Connected to Vold]\n");
while(1) {
fd_set read_fds;
struct timeval to;
int rc = 0;
to.tv_sec = 10;
to.tv_usec = 0;
FD_ZERO(&read_fds);
FD_SET(sock, &read_fds);
if ((rc = select(sock +1, &read_fds, NULL, NULL, &to)) < 0) {
fprintf(stderr, "Error in select (%s)\n", strerror(errno));
free(buffer);
return errno;
} else if (!rc) {
continue;
fprintf(stderr, "[TIMEOUT]\n");
return ETIMEDOUT;
} else if (FD_ISSET(sock, &read_fds)) {
memset(buffer, 0, 4096);
if ((rc = read(sock, buffer, 4096)) <= 0) {
if (rc == 0)
fprintf(stderr, "Lost connection to Vold - did it crash?\n");
else
fprintf(stderr, "Error reading data (%s)\n", strerror(errno));
free(buffer);
if (rc == 0)
return ECONNRESET;
return errno;
}
int offset = 0;
int i = 0;
for (i = 0; i < rc; i++) {
if (buffer[i] == '\0') {
int code;
char tmp[4];
strncpy(tmp, buffer + offset, 3);
tmp[3] = '\0';
code = atoi(tmp);
printf("%s\n", buffer + offset);
if (stop_after_cmd) {
if (code >= 200 && code < 600)
return 0;
}
offset = i + 1;
}
}
}
}
free(buffer);
return 0;
}
static void usage(char *progname) {
fprintf(stderr, "Usage: %s <monitor>|<cmd> [arg1] [arg2...]\n", progname);
exit(1);
}
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