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#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <sys/un.h>
#include "cpufreqd_remote.h"
static int cpufreqd_dirs(const struct dirent *d) {
return (strncmp(d->d_name, "cpufreqd-", 9) == 0);
}
int main(int argc, char *argv[])
{
int sock;
struct dirent **namelist = NULL;
struct sockaddr_un sck;
struct stat st;
time_t last_mtime = 0;
long int n = 0;
unsigned int cmd = 0;
char *endptr = NULL;
char buf[108];
if (argc != 2) {
printf("usage: %s [manual | dynamic | <profile#>]\n", argv[0]);
return 1;
}
sck.sun_family = AF_UNIX;
sck.sun_path[0] = '\0';
/* get path */
n = scandir("/tmp", &namelist, &cpufreqd_dirs, NULL);
if (n > 0) {
while (n--) {
snprintf(buf, 108, "/tmp/%s", namelist[n]->d_name);
free(namelist[n]);
if (stat(buf, &st) != 0) {
fprintf(stderr, "%s: %s\n", buf, strerror(errno));
continue;
}
#if 0
fprintf(stdout, "%s %lu %lu %lu\n", buf, st.st_ctime, st.st_atime, st.st_mtime);
#endif
if (last_mtime == 0 || last_mtime < st.st_mtime) {
last_mtime = st.st_mtime;
snprintf(sck.sun_path, 108,"%s/cpufreqd", buf);
#if 0
fprintf(stdout, "--> %s\n", buf);
#endif
}
}
free(namelist);
} else {
fprintf(stderr, "No cpufreqd socket found\n");
return ENOENT;
}
if (!sck.sun_path) {
fprintf(stderr, "No cpufreqd socket found\n");
return ENOENT;
}
#if 0
fprintf(stdout, "socket I'll try to connect: %s\n", sck.sun_path);
#endif
if (!strcmp(argv[1], "dynamic"))
cmd = MAKE_COMMAND(CMD_SET_MODE, MODE_DYNAMIC);
else if (!strcmp(argv[1], "manual"))
cmd = MAKE_COMMAND(CMD_SET_MODE, MODE_MANUAL);
else {
n = strtol(argv[1], &endptr, 10);
if (errno == ERANGE) {
fprintf (stderr, "Overflow in long int %ld (%s)\n", n, argv[1]);
return ERANGE;
}
if (n >> 16) {
fprintf (stderr, "Profile number out of range. Must be 0 < %s > %d\n",
argv[1], 0xffff);
return EINVAL;
}
if (endptr[0] != '\0') {
fprintf (stderr, "Unknown argument %s\n", argv[1]);
return EINVAL;
}
cmd = MAKE_COMMAND(CMD_SET_PROFILE, n);
}
fprintf(stdout, "command: %.8x %.4x %.4x\n", cmd, REMOTE_CMD(cmd), REMOTE_ARG(cmd));
if ((sock = socket(PF_UNIX, SOCK_STREAM, 0)) == -1) {
perror("socket()");
return errno;
}
if (connect(sock, (struct sockaddr *)&sck, sizeof(sck)) == -1) {
perror("connect()");
close(sock);
return errno;
}
if (write(sock, &cmd, 4) != 4)
perror("write()");
close(sock);
return 0;
}
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