move get_mimetype_from_file() to shared

Signed-off-by: Christian Hesse <mail@eworm.de>

1 files changed, 40 insertions, 0 deletions

@@ -560,3 +560,43 @@ char *expand_macros(const char *txt)
         }
         return result;
 }
+
+char *get_mimetype_from_file(const char *filename, const char *ext)
+{
+        static const char *delimiters;
+        char *result;
+        FILE *fd;
+        char line[1024];
+        char *mimetype;
+        char *token;
+
+        if (!filename)
+                return NULL;
+
+        fd = fopen(filename, "r");
+        if (!fd)
+                return NULL;
+
+        delimiters = " \t\r\n";
+        result = NULL;
+
+        /* loop over all lines in the file */
+        while (!result && fgets(line, sizeof(line), fd)) {
+                mimetype = strtok(line, delimiters);
+
+                /* skip empty lines and comment lines */
+                if (!mimetype || (mimetype[0] == '#'))
+                        continue;
+
+                /* loop over all extensions of mimetype */
+                while ((token = strtok(NULL, delimiters))) {
+                        if (!strcasecmp(ext, token)) {
+                                result = xstrdup(mimetype);
+                                break;
+                        }
+                }
+        }
+        fclose(fd);
+
+        return result;
+}