Sweden-Number/programs/winetest/util.c

118 lines
2.6 KiB
C

/*
* Utility functions.
*
* Copyright 2003 Dimitrie O. Paun
* Copyright 2003 Ferenc Wagner
*
* 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
*
*/
#include <unistd.h>
#include <errno.h>
#include "winetest.h"
void *xmalloc (size_t len)
{
void *p = malloc (len);
if (!p) report (R_FATAL, "Out of memory.");
return p;
}
void *xrealloc (void *op, size_t len)
{
void *p = realloc (op, len);
if (!p) report (R_FATAL, "Out of memory.");
return p;
}
char *vstrfmtmake (size_t *lenp, const char *fmt, va_list ap)
{
size_t size = 1000;
char *p, *q;
int n;
p = malloc (size);
if (!p) return NULL;
while (1) {
n = vsnprintf (p, size, fmt, ap);
if (n < 0) size *= 2; /* Windows */
else if ((unsigned)n >= size) size = n+1; /* glibc */
else break;
q = realloc (p, size);
if (!q) {
free (p);
return NULL;
}
p = q;
}
if (lenp) *lenp = n;
return p;
}
char *vstrmake (size_t *lenp, va_list ap)
{
const char *fmt;
fmt = va_arg (ap, const char*);
return vstrfmtmake (lenp, fmt, ap);
}
char *strmake (size_t *lenp, ...)
{
va_list ap;
char *p;
va_start (ap, lenp);
p = vstrmake (lenp, ap);
if (!p) report (R_FATAL, "Out of memory.");
va_end (ap);
return p;
}
void xprintf (const char *fmt, ...)
{
va_list ap;
size_t size;
ssize_t written;
char *buffer, *head;
va_start (ap, fmt);
buffer = vstrfmtmake (&size, fmt, ap);
head = buffer;
va_end (ap);
while ((written = write (1, head, size)) != size) {
if (written == -1)
report (R_FATAL, "Can't write logs: %d", errno);
head += written;
size -= written;
}
free (buffer);
}
const char *
badtagchar (const char *tag)
{
while (*tag)
if (('a'<=*tag && *tag<='z') ||
('A'<=*tag && *tag<='Z') ||
('0'<=*tag && *tag<='9') ||
*tag=='-' || *tag=='.')
tag++;
else return tag;
return NULL;
}