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/*
* Copyright (C) 2007 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 <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include "sysdeps.h"
#include "fdevent.h"
#define TRACE_TAG TRACE_SERVICES
#include "adb.h"
typedef struct stinfo stinfo;
struct stinfo {
void (*func)(int fd, void *cookie);
int fd;
void *cookie;
};
void *service_bootstrap_func(void *x)
{
stinfo *sti = x;
sti->func(sti->fd, sti->cookie);
free(sti);
return 0;
}
static void sideload_service(int s, void *cookie)
{
unsigned char buf[4096];
unsigned count = (unsigned)(uintptr_t)cookie;
int fd;
fprintf(stderr, "sideload_service invoked\n");
fd = adb_creat(ADB_SIDELOAD_FILENAME, 0644);
if(fd < 0) {
fprintf(stderr, "failed to create %s\n", ADB_SIDELOAD_FILENAME);
adb_close(s);
exit(1);
}
while(count > 0) {
unsigned xfer = (count > 4096) ? 4096 : count;
if(readx(s, buf, xfer)) break;
if(writex(fd, buf, xfer)) break;
count -= xfer;
}
if(count == 0) {
writex(s, "OKAY", 4);
} else {
writex(s, "FAIL", 4);
}
adb_close(fd);
adb_close(s);
if (count == 0) {
fprintf(stderr, "adbd exiting after successful sideload\n");
sleep(1);
exit(0);
}
}
#if 0
static void echo_service(int fd, void *cookie)
{
char buf[4096];
int r;
char *p;
int c;
for(;;) {
r = read(fd, buf, 4096);
if(r == 0) goto done;
if(r < 0) {
if(errno == EINTR) continue;
else goto done;
}
c = r;
p = buf;
while(c > 0) {
r = write(fd, p, c);
if(r > 0) {
c -= r;
p += r;
continue;
}
if((r < 0) && (errno == EINTR)) continue;
goto done;
}
}
done:
close(fd);
}
#endif
static int create_service_thread(void (*func)(int, void *), void *cookie)
{
stinfo *sti;
adb_thread_t t;
int s[2];
if(adb_socketpair(s)) {
printf("cannot create service socket pair\n");
return -1;
}
sti = malloc(sizeof(stinfo));
if(sti == 0) fatal("cannot allocate stinfo");
sti->func = func;
sti->cookie = cookie;
sti->fd = s[1];
if(adb_thread_create( &t, service_bootstrap_func, sti)){
free(sti);
adb_close(s[0]);
adb_close(s[1]);
printf("cannot create service thread\n");
return -1;
}
D("service thread started, %d:%d\n",s[0], s[1]);
return s[0];
}
int service_to_fd(const char *name)
{
int ret = -1;
if (!strncmp(name, "sideload:", 9)) {
ret = create_service_thread(sideload_service, (void*)(uintptr_t)atoi(name + 9));
#if 0
} else if(!strncmp(name, "echo:", 5)){
ret = create_service_thread(echo_service, 0);
#endif
}
if (ret >= 0) {
close_on_exec(ret);
}
return ret;
}
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