Zig

Get the Entire MIME Header Section

Demonstrates the Chilkat Mime.GetEntireHead method, which returns the complete serialized header section of the current entity. It takes no arguments; the body and any multipart child content are not included.

Note: The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: This gives you just the headers of the current entity as text — the block above the blank line that separates headers from body. It is convenient for logging or displaying a message's metadata, or for examining the headers without the potentially large body. Its complement is GetEntireBody.

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const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

    const mime = try chilkat.Mime.init();
    defer mime.deinit();
    mime.loadMimeFile("qa_data/message.eml") catch {
        std.debug.print("{s}\n", .{try mime.getLastErrorText(alloc)});
        return;
    };

    // Return the complete serialized header section of the current entity.  The body and any
    // multipart child content are not included.
    const headers = mime.getEntireHead(alloc) catch {
        std.debug.print("{s}\n", .{try mime.getLastErrorText(alloc)});
        return;
    };

    std.debug.print("{s}\n", .{headers});
}