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authorJason A. Donenfeld <Jason@zx2c4.com>2015-08-17 15:35:20 +0300
committerJason A. Donenfeld <Jason@zx2c4.com>2015-08-17 15:49:28 +0300
commit73f199be3f0b03fbaee9b9b30ed3d782e3395af7 (patch)
tree84822aa88daca47ef66e7ef7ff998ce35c972ab4
parent790d2498cbc7ad60f8eef31db0467cfc97e0593b (diff)
mime: rewrite detection function
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
-rw-r--r--shared.c62
1 files changed, 26 insertions, 36 deletions
diff --git a/shared.c b/shared.c
index 225ce15..3d91a76 100644
--- a/shared.c
+++ b/shared.c
@@ -563,49 +563,39 @@ char *expand_macros(const char *txt)
char *get_mimetype_for_filename(const char *filename)
{
- static const char *delimiters;
- char *ext = NULL, *iterate, *mimetype = NULL, *token;
- char line[1024];
- FILE *fd;
+ char *ext, *mimetype, *token, line[1024];
+ FILE *file;
struct string_list_item *mime;
- if (filename == NULL)
+ if (!filename)
return NULL;
ext = strrchr(filename, '.');
+ if (!ext)
+ return NULL;
+ ++ext;
+ if (!ext[0])
+ return NULL;
+ mime = string_list_lookup(&ctx.cfg.mimetypes, ext);
+ if (mime)
+ return xstrdup(mime->util);
- if (ext && *(++ext)) {
- mime = string_list_lookup(&ctx.cfg.mimetypes, ext);
- if (mime) {
- /* We could just pass the pointer here, but would have to care
- * whether or not to free the memory. Instead just dup. */
- mimetype = xstrdup(mime->util);
- } else if (ctx.cfg.mimetype_file != NULL) {
- fd = fopen(ctx.cfg.mimetype_file, "r");
- if (fd == NULL)
- return NULL;
-
- delimiters = " \t\r\n";
-
- /* loop over all lines in the file */
- while (mimetype == NULL && fgets(line, sizeof(line), fd)) {
- iterate = strtok(line, delimiters);
-
- /* skip empty lines and comment lines */
- if (iterate == NULL || (iterate[0] == '#'))
- continue;
-
- /* loop over all extensions of mimetype */
- while ((token = strtok(NULL, delimiters))) {
- if (strcasecmp(ext, token) == 0) {
- mimetype = xstrdup(iterate);
- break;
- }
- }
+ if (!ctx.cfg.mimetype_file)
+ return NULL;
+ file = fopen(ctx.cfg.mimetype_file, "r");
+ if (!file)
+ return NULL;
+ while (fgets(line, sizeof(line), file)) {
+ if (!line[0] || line[0] == '#')
+ continue;
+ mimetype = strtok(line, " \t\r\n");
+ while ((token = strtok(NULL, " \t\r\n"))) {
+ if (!strcasecmp(ext, token)) {
+ fclose(file);
+ return xstrdup(mimetype);
}
- fclose(fd);
}
}
-
- return mimetype;
+ fclose(file);
+ return NULL;
}