showfile.c: Move interface to own file.

[nmh] / sbr / mime_type.c

diff --git a/sbr/mime_type.c b/sbr/mime_type.c
index a640110a9f48b1fdbe9554e88500553e311fa7b8..91c6c3980c8d1c7d77d880c5f5bae63087162964 100644 (file)
--- a/sbr/mime_type.c
+++ b/sbr/mime_type.c
@@ -5,9 +5,11 @@
  * complete copyright information.
  */
 
-#include <h/mh.h>
-#include <h/utils.h>
-#include <h/tws.h>
+#include "h/mh.h"
+#include "readconfig.h"
+#include "error.h"
+#include "h/utils.h"
+#include "h/tws.h"
 #include "mime_type.h"
 
 #ifdef MIMETYPEPROC
@@ -20,10 +22,10 @@ static char *get_file_info(const char *, const char *);
  * is responsible for free'ing returned memory.
  */
 char *
-mime_type(const char *file_name) {
+mime_type(const char *file_name)
+{
     char *content_type = NULL;  /* mime content type */
     char *p;
-    static int loaded_defaults = 0;
 
 #ifdef MIMETYPEPROC
     char *mimetype;
@@ -33,17 +35,13 @@ mime_type(const char *file_name) {
         /* Try to append charset for text content. */
         char *mimeencoding;
 
-        if (strncasecmp(mimetype, "text", 4) == 0) {
-            if ((mimeencoding = get_file_info(MIMEENCODINGPROC, file_name))) {
-                content_type = concat(mimetype, "; charset=", mimeencoding,
-                                      NULL);
-                free (mimetype);
-            } else {
-                content_type = mimetype;
-            }
-        } else {
+        if (!strncasecmp(mimetype, "text", 4) &&
+            (mimeencoding = get_file_info(MIMEENCODINGPROC, file_name))) {
+            content_type = concat(mimetype, "; charset=", mimeencoding, NULL);
+            free(mimeencoding);
+            free(mimetype);
+        } else
             content_type = mimetype;
-        }
 #else  /* MIMEENCODINGPROC */
         content_type = mimetype;
 #endif /* MIMEENCODINGPROC */
@@ -59,9 +57,10 @@ mime_type(const char *file_name) {
        struct node *np;                /* Content scan node pointer */
        FILE *fp;                       /* File pointer for mhn.defaults */
 
+        static bool loaded_defaults;
        if (! loaded_defaults &&
                        (fp = fopen(p = etcpath("mhn.defaults"), "r"))) {
-           loaded_defaults = 1;
+           loaded_defaults = true;
            readconfig(NULL, fp, p, 0);
            fclose(fp);
        }
@@ -84,16 +83,17 @@ mime_type(const char *file_name) {
 
        if (content_type == NULL) {
            FILE *fp;
-           int binary = 0, c;
+            int c;
 
            if (!(fp = fopen(file_name, "r"))) {
                inform("unable to access file \"%s\"", file_name);
                return NULL;
            }
 
+           bool binary = false;
            while ((c = getc(fp)) != EOF) {
                if (! isascii(c)  ||  c == 0) {
-                   binary = 1;
+                   binary = true;
                    break;
                }
            }
@@ -112,7 +112,7 @@ mime_type(const char *file_name) {
 #ifdef MIMETYPEPROC
 /*
  * Get information using proc about a file.
- */
+ * Non-null return value must be free(3)'d. */
 static char *
 get_file_info(const char *proc, const char *file_name)
 {
@@ -152,7 +152,7 @@ get_file_info(const char *proc, const char *file_name)
     if (!ok)
         return NULL;
 
-    /* s#^.*:[ \t]*##. */
+    /* s#^[^:]*:[ \t]*##. */
     info = buf;
     if ((needle = strchr(info, ':'))) {
         info = needle + 1;