Sweden-Number/tools/winegcc/utils.c

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/*
* Useful functions for winegcc/winewrap
*
* Copyright 2000 Francois Gouget
* Copyright 2002 Dimitrie O. Paun
* Copyright 2003 Richard Cohen
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "wine/port.h"
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <stdlib.h>
#include <errno.h>
#include "utils.h"
#if !defined(min)
# define min(x,y) (((x) < (y)) ? (x) : (y))
#endif
int verbose = 0;
void error(const char *s, ...)
{
va_list ap;
va_start(ap, s);
fprintf(stderr, "Error: ");
vfprintf(stderr, s, ap);
fprintf(stderr, "\n");
va_end(ap);
exit(2);
}
void *xmalloc(size_t size)
{
void *p;
if ((p = malloc (size)) == NULL)
error("Can not malloc %d bytes.", size);
return p;
}
void *xrealloc(void* p, size_t size)
{
void* p2;
if ((p2 = realloc (p, size)) == NULL)
error("Can not realloc %d bytes.", size);
return p2;
}
char *strmake(const char *fmt, ...)
{
int n;
size_t size = 100;
char *p;
va_list ap;
p = xmalloc (size);
while (1)
{
va_start(ap, fmt);
n = vsnprintf (p, size, fmt, ap);
va_end(ap);
if (n > -1 && (size_t)n < size) return p;
size = min( size*2, (size_t)n+1 );
p = xrealloc (p, size);
}
}
strarray *strarray_alloc(void)
{
strarray *arr = xmalloc(sizeof(*arr));
arr->maximum = arr->size = 0;
arr->base = NULL;
return arr;
}
void strarray_free(strarray* arr)
{
free(arr->base);
free(arr);
}
void strarray_add(strarray* arr, const char* str)
{
if (arr->size == arr->maximum)
{
arr->maximum += 10;
arr->base = xrealloc(arr->base, sizeof(*(arr->base)) * arr->maximum);
}
arr->base[arr->size++] = str;
}
void spawn(const strarray* arr)
{
int i, status;
const char **argv = arr->base;
if (verbose)
{
for(i = 0; argv[i]; i++) printf("%s ", argv[i]);
printf("\n");
}
if (!(status = spawnvp( _P_WAIT, argv[0], argv))) return;
if (status > 0) error("%s failed.", argv[0]);
else perror("Error:");
exit(3);
}