printf/ft_dprintf.c

#include <stdlib.h>
#include "ft_printf_internal.h"

int doPrintf(struct printf_data* params, va_list args)
{
    int to;
    int syscallReturn;

    to = 0;
    while (params->inputBuffer[to] && params->inputBuffer[to] != '%')
    {
        ++to;
    }
    if (to)
    {
        syscallReturn = printfWrite(params, params->inputBuffer, to);
        if (syscallReturn < 0)
            return syscallReturn;
        params->inputBuffer += to;
    }
    if (*params->inputBuffer == '%')
    {
        params->inputBuffer++;
        syscallReturn = expandParams(params, args);
        if (syscallReturn < 0)
            return syscallReturn;
        return 0;
    }
    return 0;
}

int ft_vdprintf(int fd, char* format, va_list args)
{
    struct printf_data params;

    params.fd = fd;
    params.written = 0;
    params.inputBuffer = format;
    params.outputBuffer = NULL;
    params.realloc = 0;
    params.fdBuffer = (char*) malloc(sizeof(*params.fdBuffer) * PRINTF_FD_BUFFER_LEN);
    params.bufferMaxSize = PRINTF_FD_BUFFER_LEN;
    params.bufferPos = 0;
    while (*params.inputBuffer)
    {
        if (doPrintf(&params, args) < 0)
            return -1;
    }
    flushBuffer(&params);
    free(params.fdBuffer);
    return params.written;
}