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/*
* Copyright (c) 2012 Samsung Electronics Co., Ltd.
*
* 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 <stdbool.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <signal.h>
#include <dirent.h>
#include <ctype.h>
#include <string.h>
#include <stdarg.h>
#include <errno.h>
#include <poll.h>
#include <vconf.h>
#include "sysman.h"
#include "sysman-priv.h"
API int sysman_get_pid(const char *execpath)
{
DIR *dp;
struct dirent *dentry;
int pid = -1, fd;
char buf[BUFF_MAX];
char buf2[BUFF_MAX];
dp = opendir("/proc");
if (!dp) {
ERR("open /proc");
return -1;
}
while ((dentry = readdir(dp)) != NULL) {
if (!isdigit(dentry->d_name[0]))
continue;
pid = atoi(dentry->d_name);
snprintf(buf, BUFF_MAX, "/proc/%d/cmdline", pid);
fd = open(buf, O_RDONLY);
if (fd < 0)
continue;
if (read(fd, buf2, BUFF_MAX) < 0) {
close(fd);
continue;
}
close(fd);
if (!strcmp(buf2, execpath)) {
closedir(dp);
return pid;
}
}
errno = ESRCH;
closedir(dp);
return -1;
}
API int sysman_get_cmdline_name(pid_t pid, char *cmdline, size_t cmdline_size)
{
int fd, ret;
char buf[PATH_MAX + 1];
char *filename;
snprintf(buf, sizeof(buf), "/proc/%d/cmdline", pid);
fd = open(buf, O_RDONLY);
if (fd < 0) {
errno = ESRCH;
return -1;
}
ret = read(fd, buf, PATH_MAX);
close(fd);
buf[PATH_MAX] = '\0';
filename = strrchr(buf, '/');
if (filename == NULL)
filename = buf;
else
filename = filename + 1;
if (cmdline_size < strlen(filename) + 1) {
errno = EOVERFLOW;
return -1;
}
strncpy(cmdline, filename, cmdline_size - 1);
cmdline[cmdline_size - 1] = '\0';
return 0;
}
API int sysman_get_apppath(pid_t pid, char *app_path, size_t app_path_size)
{
char buf[PATH_MAX];
int ret;
snprintf(buf, PATH_MAX, "/proc/%d/exe", pid);
if (app_path == NULL
|| (ret = readlink(buf, app_path, app_path_size)) == -1)
return -1;
if (app_path_size == ret) {
app_path[ret - 1] = '\0';
errno = EOVERFLOW;
return -1;
}
app_path[ret] = '\0';
return 0;
}
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