/* small utility functions for winebuild */

#include <ctype.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include "build.h"

void *xmalloc (size_t size)
{
    void *res;

    res = malloc (size ? size : 1);
    if (res == NULL)
    {
        fprintf (stderr, "Virtual memory exhausted.\n");
        exit (1);
    }
    return res;
}

void *xrealloc (void *ptr, size_t size)
{
    void *res = realloc (ptr, size);
    if (res == NULL)
    {
        fprintf (stderr, "Virtual memory exhausted.\n");
        exit (1);
    }
    return res;
}

char *xstrdup( const char *str )
{
    char *res = strdup( str );
    if (!res)
    {
        fprintf (stderr, "Virtual memory exhausted.\n");
        exit (1);
    }
    return res;
}

char *strupper(char *s)
{
    char *p;
    for (p = s; *p; p++) *p = toupper(*p);
    return s;
}

void fatal_error( const char *msg, ... )
{
    va_list valist;
    va_start( valist, msg );
    if (input_file_name)
    {
        fprintf( stderr, "%s:", input_file_name );
        if (current_line)
            fprintf( stderr, "%d:", current_line );
        fputc( ' ', stderr );
    }
    vfprintf( stderr, msg, valist );
    va_end( valist );
    exit(1);
}

void fatal_perror( const char *msg, ... )
{
    va_list valist;
    va_start( valist, msg );
    if (input_file_name)
    {
        fprintf( stderr, "%s:", input_file_name );
        if (current_line)
            fprintf( stderr, "%d:", current_line );
        fputc( ' ', stderr );
    }
    vfprintf( stderr, msg, valist );
    perror( " " );
    va_end( valist );
    exit(1);
}

void warning( const char *msg, ... )
{
    va_list valist;
    va_start( valist, msg );
    if (input_file_name)
    {
        fprintf( stderr, "%s:", input_file_name );
        if (current_line)
            fprintf( stderr, "%d:", current_line );
        fputc( ' ', stderr );
    }
    fprintf( stderr, "warning: " );
    vfprintf( stderr, msg, valist );
    va_end( valist );
}

/* dump a byte stream into the assembly code */
void dump_bytes( FILE *outfile, const unsigned char *data, int len,
                 const char *label, int constant )
{
    int i;

    fprintf( outfile, "\nstatic %sunsigned char %s[%d] = {",
             constant ? "const " : "", label, len );
    for (i = 0; i < len; i++)
    {
        if (!(i & 7)) fprintf( outfile, "\n  " );
        fprintf( outfile, "0x%02x", *data++ );
        if (i < len - 1) fprintf( outfile, "," );
    }
    fprintf( outfile, "\n};\n" );
}