Make read_one_header_line return a flag not a length.

Currently we only use the return value from read_one_header line
to tell if the line we have read is a header or not.  So make
it a flag.  This paves the way for better email detection.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/mailinfo.c b/mailinfo.c
index b276519..83a2986 100644 (file)
--- a/mailinfo.c
+++ b/mailinfo.c
@@ -331,7 +331,7 @@ struct header_def {
        int namelen;
 };
 
-static void check_header(char *line, int len, struct header_def *header)
+static void check_header(char *line, struct header_def *header)
 {
        int i;
 
@@ -349,7 +349,7 @@ static void check_header(char *line, int len, struct header_def *header)
        }
 }
 
-static void check_subheader_line(char *line, int len)
+static void check_subheader_line(char *line)
 {
        static struct header_def header[] = {
                { "Content-Type", handle_subcontent_type },
@@ -357,9 +357,9 @@ static void check_subheader_line(char *line, int len)
                  handle_content_transfer_encoding },
                { NULL },
        };
-       check_header(line, len, header);
+       check_header(line, header);
 }
-static void check_header_line(char *line, int len)
+static void check_header_line(char *line)
 {
        static struct header_def header[] = {
                { "From", handle_from },
@@ -370,7 +370,7 @@ static void check_header_line(char *line, int len)
                  handle_content_transfer_encoding },
                { NULL },
        };
-       check_header(line, len, header);
+       check_header(line, header);
 }
 
 static int read_one_header_line(char *line, int sz, FILE *in)
@@ -709,8 +709,8 @@ static void handle_multipart_body(void)
                return;
        /* We are on boundary line.  Start slurping the subhead. */
        while (1) {
-               int len = read_one_header_line(line, sizeof(line), stdin);
-               if (!len) {
+               int hdr = read_one_header_line(line, sizeof(line), stdin);
+               if (!hdr) {
                        if (handle_multipart_one_part() < 0)
                                return;
                        /* Reset per part headers */
@@ -718,7 +718,7 @@ static void handle_multipart_body(void)
                        charset[0] = 0;
                }
                else
-                       check_subheader_line(line, len);
+                       check_subheader_line(line);
        }
        fclose(patchfile);
        if (!patch_lines) {
@@ -787,15 +787,15 @@ int main(int argc, char **argv)
                exit(1);
        }
        while (1) {
-               int len = read_one_header_line(line, sizeof(line), stdin);
-               if (!len) {
+               int hdr = read_one_header_line(line, sizeof(line), stdin);
+               if (!hdr) {
                        if (multipart_boundary[0])
                                handle_multipart_body();
                        else
                                handle_body();
                        break;
                }
-               check_header_line(line, len);
+               check_header_line(line);
        }
        return 0;
 }