toys/simple-http-server-c/source/http_response.c

#include "http_response.h"

#include <string.h>

void HttpResponseHeader_Start(HttpResponseHeader *o, const char *code, const char *msg)
{
    DynamicBuffer_Clear(&o->buffer);
    DynamicBuffer_Append(&o->buffer, "HTTP/1.1 ", 9);
    DynamicBuffer_AppendString(&o->buffer, code);
    DynamicBuffer_Append(&o->buffer, " ", 1);
    DynamicBuffer_AppendString(&o->buffer, msg);
    DynamicBuffer_Append(&o->buffer, "\r\n", 2);
}

void HttpResponseHeader_AppendField(HttpResponseHeader *o, const char *field, const char *value)
{
    DynamicBuffer_AppendString(&o->buffer, field);
    DynamicBuffer_Append(&o->buffer, ": ", 2);
    DynamicBuffer_AppendString(&o->buffer, value);
    DynamicBuffer_Append(&o->buffer, "\r\n", 2);
}

void HttpResponseHeader_EndWithContentLength(HttpResponseHeader *o, size_t size)
{
    char content_length[256];
    sprintf(content_length, "%lu", size);

    HttpResponseHeader_AppendField(o, "Content-Length", content_length);
    DynamicBuffer_Append(&o->buffer, "\r\n\0", 3);
}