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#include "elementary_config.h"
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <limits.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <unistd.h>
#include <sys/stat.h>
#include <fcntl.h>
#ifdef HAVE_ALLOCA_H
# include <alloca.h>
#endif
#define LENGTH_OF_SOCKADDR_UN(s) (strlen((s)->sun_path) + (size_t)(((struct sockaddr_un *)NULL)->sun_path))
int
main(int argc, char **argv)
{
int sock, socket_unix_len, i;
struct sockaddr_un socket_unix;
char buf[PATH_MAX];
struct stat st;
char *exe;
int we_are_elementary_run = 0;
char *disp;
char *cwd;
int sargc, slen;
unsigned char *sbuf = NULL, *pos;
char **sargv = NULL;
if (!getcwd(buf, sizeof(buf) - 1))
{
fprintf(stderr, "elementary_quicklaunch: currect working dir too big.\n");
exit(-1);
}
cwd = strdup(buf);
if (!(disp = getenv("DISPLAY")))
{
fprintf(stderr, "elementary_quicklaunch: DISPLAY env var not set\n");
exit(-1);
}
snprintf(buf, sizeof(buf), "/tmp/elm-ql-%i/%s", getuid(), disp);
if ((sock = socket(AF_UNIX, SOCK_STREAM, 0)) < 0)
{
perror("elementary_quicklaunch: socket(AF_UNIX, SOCK_STREAM, 0)");
exit(-1);
}
socket_unix.sun_family = AF_UNIX;
strncpy(socket_unix.sun_path, buf, sizeof(socket_unix.sun_path));
socket_unix_len = LENGTH_OF_SOCKADDR_UN(&socket_unix);
if (connect(sock, (struct sockaddr *)&socket_unix, socket_unix_len) < 0)
{
perror("elementary_quicklaunch: connect(sock, (struct sockaddr *)&socket_unix, socket_unix_len)");
printf("elementary_quicklaunch: cannot connect to socket '%s'\n", buf);
exit(1);
}
exe = argv[0];
if (!(((exe[0] == '/')) ||
((exe[0] == '.') && (exe[1] == '/')) ||
((exe[0] == '.') && (exe[1] == '.') && (exe[2] == '/'))))
{
char *path = getenv("PATH");
int exelen = strlen(argv[0]);
if (path)
{
const char *p, *pp;
p = path;
pp = p;
exe = NULL;
for (;;)
{
if ((*p == ':') || (!*p))
{
unsigned int len;
len = p - pp;
if (len < (sizeof(buf) - exelen - 3))
{
strncpy(buf, pp, len);
strcpy(buf + len, "/");
strcpy(buf + len + 1, argv[0]);
if (!access(buf, R_OK | X_OK))
{
exe = buf;
break;
}
if (!*p) break;
p++;
pp = p;
}
}
else
{
if (!*p) break;
p++;
}
}
}
}
if (exe)
{
if (!lstat(exe, &st))
{
if (S_ISLNK(st.st_mode))
{
char buf2[PATH_MAX];
ssize_t len = readlink(exe, buf2, sizeof(buf2) - 1);
if (len >= 0)
{
char *p;
buf2[len] = 0;
p = strrchr(buf2, '/');
if (p) p++;
else p = buf2;
if (!strncasecmp(p, "elementary_run", 14))
we_are_elementary_run = 1;
}
}
}
}
if (we_are_elementary_run)
{
sargc = argc;
sargv = argv;
}
else
{
sargc = argc - 1;
sargv = &(argv[1]);
}
slen = sizeof(unsigned long) + sizeof(unsigned long);
for (i = 0; i < sargc; i++)
{
slen += sizeof(unsigned long);
slen += strlen(sargv[i]) + 1;
}
slen += strlen(cwd) + 1;
sbuf = alloca(slen);
((unsigned long *)(sbuf))[0] = slen - sizeof(unsigned long);
((unsigned long *)(sbuf))[1] = sargc;
pos = (unsigned char *)(&((((unsigned long *)(sbuf))[2 + sargc])));
for (i = 0; i < sargc; i++)
{
((unsigned long *)(sbuf))[2 + i] =
(unsigned long)pos - ((unsigned long)sbuf + sizeof(unsigned long));
strcpy((char *)pos, sargv[i]);
pos += strlen(sargv[i]) + 1;
}
strcpy((char *)pos, cwd);
if (write(sock, sbuf, slen) < 0)
printf("elementary_quicklaunch: cannot write to socket '%s'\n", buf);
close(sock);
return 0;
}
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