diff options
Diffstat (limited to 'config.c')
| -rw-r--r-- | config.c | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/config.c b/config.c index ce1bd25..a6cd55b 100644 --- a/config.c +++ b/config.c @@ -15,11 +15,51 @@ */ #include <err.h> +#include <errno.h> #include <getopt.h> +#include <limits.h> #include <stdio.h> #include <stdlib.h> #include <string.h> +#define CONFIG_DIR "litterbox" + +static FILE *find(const char *path, const char *mode) { + if (path[0] == '/' || path[0] == '.') goto local; + + const char *home = getenv("HOME"); + const char *configHome = getenv("XDG_CONFIG_HOME"); + const char *configDirs = getenv("XDG_CONFIG_DIRS"); + + char buf[PATH_MAX]; + if (configHome) { + snprintf(buf, sizeof(buf), "%s/" CONFIG_DIR "/%s", configHome, path); + } else { + if (!home) goto local; + snprintf(buf, sizeof(buf), "%s/.config/" CONFIG_DIR "/%s", home, path); + } + FILE *file = fopen(buf, mode); + if (file) return file; + if (errno != ENOENT) return NULL; + + if (!configDirs) configDirs = "/etc/xdg"; + while (*configDirs) { + size_t len = strcspn(configDirs, ":"); + snprintf( + buf, sizeof(buf), "%.*s/" CONFIG_DIR "/%s", + (int)len, configDirs, path + ); + file = fopen(buf, mode); + if (file) return file; + if (errno != ENOENT) return NULL; + configDirs += len; + if (*configDirs) configDirs++; + } + +local: + return fopen(path, mode); +} + #define WS "\t " static const char *path; @@ -51,7 +91,7 @@ int getopt_config( if (optind < argc) { num = 0; path = argv[optind++]; - file = fopen(path, "r"); + file = find(path, "r"); if (!file) { warn("%s", path); return clean('?'); |