printf("\rRunning i3 version: %s (pid %s)\n", human_readable_version, pid_from_atom);
#ifdef __linux__
- char exepath[PATH_MAX],
- destpath[PATH_MAX];
+ size_t destpath_size = 1024;
ssize_t linksize;
+ char *exepath;
+ char *destpath = smalloc(destpath_size);
- snprintf(exepath, sizeof(exepath), "/proc/%d/exe", getpid());
+ sasprintf(&exepath, "/proc/%d/exe", getpid());
- if ((linksize = readlink(exepath, destpath, sizeof(destpath))) == -1)
+ while ((linksize = readlink(exepath, destpath, destpath_size)) == destpath_size) {
+ destpath_size = destpath_size * 2;
+ destpath = srealloc(destpath, destpath_size);
+ }
+ if (linksize == -1)
err(EXIT_FAILURE, "readlink(%s)", exepath);
/* readlink() does not NULL-terminate strings, so we have to. */
printf("\n");
printf("The i3 binary you just called: %s\n", destpath);
- snprintf(exepath, sizeof(exepath), "/proc/%s/exe", pid_from_atom);
+ free(exepath);
+ sasprintf(&exepath, "/proc/%s/exe", pid_from_atom);
- if ((linksize = readlink(exepath, destpath, sizeof(destpath))) == -1)
+ while ((linksize = readlink(exepath, destpath, destpath_size)) == destpath_size) {
+ destpath_size = destpath_size * 2;
+ destpath = srealloc(destpath, destpath_size);
+ }
+ if (linksize == -1)
err(EXIT_FAILURE, "readlink(%s)", exepath);
/* readlink() does not NULL-terminate strings, so we have to. */
/* Since readlink() might put a "(deleted)" somewhere in the buffer and
* stripping that out seems hackish and ugly, we read the process’s argv[0]
* instead. */
- snprintf(exepath, sizeof(exepath), "/proc/%s/cmdline", pid_from_atom);
+ free(exepath);
+ sasprintf(&exepath, "/proc/%s/cmdline", pid_from_atom);
int fd;
if ((fd = open(exepath, O_RDONLY)) == -1)
close(fd);
printf("The i3 binary you are running: %s\n", destpath);
+
+ free(exepath);
+ free(destpath);
#endif
yajl_free(handle);