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ldmc.c
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ldmc.c
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#include <stdio.h>
#include <stdlib.h>
#include <getopt.h>
#include <unistd.h>
#include "ipc.h"
int
ipc_send (int fd, char type, char *arg)
{
char *fmt;
char *opt;
char tmp[4096];
int r;
if (fd < 0)
return 0;
fmt = opt = NULL;
switch (type) {
case 'r':
fmt = "R%s";
opt = arg;
break;
case 'l':
fmt = "L";
opt = NULL;
break;
default:
fprintf(stderr, "Unknown ipc command %c\n", type);
return 0;
}
if (!ipc_sendf(fd, fmt, opt)) {
fprintf(stderr, "Could not communicate with the daemon! Is ldm running?\n");
return 0;
}
switch (type) {
case 'r':
// Receive the result code
r = ipc_read_one(fd);
if (r == '+')
printf("Operation completed successfully\n");
else
printf("The operation didn't complete successfully\n");
return (r == '+');
case 'l':
// Dump all the received lines to stdout
while (1) {
r = ipc_read_line(fd, tmp, sizeof(tmp));
if (!r)
break;
printf("%s\n", tmp);
}
return 1;
}
return 0;
}
void
usage ()
{
printf("ldmc "VERSION_STR"\n");
printf("2015-2019 (C) The Lemon Man\n");
printf("\t-r <path> Remove a mounted device\n");
printf("\t-l List the mounted devices\n");
printf("\t-h Show this help\n");
}
int
main (int argc, char **argv)
{
int opt;
int ipc_fd;
int ret;
if (argc == 1) {
usage ();
return EXIT_FAILURE;
}
ret = EXIT_SUCCESS;
while ((opt = getopt(argc, argv, "hlr:")) != -1) {
switch (opt) {
case 'l':
case 'r':
ipc_fd = ipc_init(0);
// Could not open the ipc socket
if (ipc_fd < 0)
return EXIT_FAILURE;
// Propagate the error code to the exit status
if (!ipc_send(ipc_fd, (char)opt, optarg))
ret = EXIT_FAILURE;
close(ipc_fd);
break;
default:
case 'h':
usage ();
}
}
return ret;
}