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Use xdg config directory on Unix-like systems #116

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Use xdg config directory on Unix-like systems #116

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45 changes: 30 additions & 15 deletions Quake/sys_sdl_unix.c
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Expand Up @@ -236,37 +236,52 @@ static int Sys_NumCPUs (void)
static char cwd[MAX_OSPATH];
#ifdef DO_USERDIRS
static char userdir[MAX_OSPATH];
#ifdef PLATFORM_OSX
#define SYS_USERDIR "Library/Application Support/vkQuake"
#else
#define SYS_USERDIR ".vkquake"
#endif

static void Sys_GetUserdir (char *dst, size_t dstsize)
{
size_t n;
const char *home_dir = NULL;
struct passwd *pwent;
char *config_dir = NULL;

home_dir = getenv("HOME");
if (home_dir == NULL) {
struct passwd *pwent;
pwent = getpwuid( getuid() );
if (pwent == NULL)
perror("getpwuid");
else
home_dir = pwent->pw_dir;
}

pwent = getpwuid( getuid() );
if (pwent == NULL)
perror("getpwuid");
else
home_dir = pwent->pw_dir;
if (home_dir == NULL)
home_dir = getenv("HOME");
if (home_dir == NULL)
Sys_Error ("Couldn't determine userspace directory");

#ifdef PLATFORM_OSX
config_dir = malloc(strlen(home_dir) + strlen("/Library/Application Support/vkQuake") + 1);
strcpy (config_dir, home_dir);
strcat (config_dir, "/Library/Application Support/vkQuake");
#else
if (getenv("XDG_CONFIG_HOME")) {
config_dir = malloc(strlen(getenv("XDG_CONFIG_HOME")) + strlen("/vkquake") + 1);
strcpy(config_dir, getenv("XDG_CONFIG_HOME"));
strcat(config_dir, "/vkquake");
}
else {
config_dir = malloc(strlen(home_dir) + strlen("/.config/vkquake") + 1);
strcpy(config_dir, home_dir);
strcat(config_dir, "/.config/vkquake");
}
#endif

/* what would be a maximum path for a file in the user's directory...
* $HOME/SYS_USERDIR/game_dir/dirname1/dirname2/dirname3/filename.ext
* still fits in the MAX_OSPATH == 256 definition, but just in case :
*/
n = strlen(home_dir) + strlen(SYS_USERDIR) + 50;
n = strlen(config_dir) + 50;
if (n >= dstsize)
Sys_Error ("Insufficient array size for userspace directory");

q_snprintf (dst, dstsize, "%s/%s", home_dir, SYS_USERDIR);
q_snprintf (dst, dstsize, config_dir);
}
#endif /* DO_USERDIRS */

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