programs/winetest/util.c

   1 /*
   2  * Utility functions.
   3  *
   4  * Copyright 2003 Dimitrie O. Paun
   5  * Copyright 2003 Ferenc Wagner
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #include <unistd.h>
  23 #include <errno.h>
  24
  25 #include "winetest.h"
  26
  27 void *xmalloc (size_t len)
  28 {
  29     void *p = malloc (len);
  30
  31     if (!p) report (R_FATAL, "Out of memory.");
  32     return p;
  33 }
  34
  35 void *xrealloc (void *op, size_t len)
  36 {
  37     void *p = realloc (op, len);
  38
  39     if (len && !p) report (R_FATAL, "Out of memory.");
  40     return p;
  41 }
  42
  43 static char *vstrfmtmake (size_t *lenp, const char *fmt, va_list ap)
  44 {
  45     size_t size = 1000;
  46     char *p, *q;
  47     int n;
  48
  49     p = malloc (size);
  50     if (!p) return NULL;
  51     while (1) {
  52         n = vsnprintf (p, size, fmt, ap);
  53         if (n < 0) size *= 2;   /* Windows */
  54         else if ((unsigned)n >= size) size = n+1; /* glibc */
  55         else break;
  56         q = realloc (p, size);
  57         if (!q) {
  58           free (p);
  59           return NULL;
  60        }
  61        p = q;
  62     }
  63     if (lenp) *lenp = n;
  64     return p;
  65 }
  66
  67 char *vstrmake (size_t *lenp, va_list ap)
  68 {
  69     const char *fmt;
  70
  71     fmt = va_arg (ap, const char*);
  72     return vstrfmtmake (lenp, fmt, ap);
  73 }
  74
  75 char *strmake (size_t *lenp, ...)
  76 {
  77     va_list ap;
  78     char *p;
  79
  80     va_start (ap, lenp);
  81     p = vstrmake (lenp, ap);
  82     if (!p) report (R_FATAL, "Out of memory.");
  83     va_end (ap);
  84     return p;
  85 }
  86
  87 void xprintf (const char *fmt, ...)
  88 {
  89     va_list ap;
  90     size_t size;
  91     ssize_t written;
  92     char *buffer, *head;
  93
  94     va_start (ap, fmt);
  95     buffer = vstrfmtmake (&size, fmt, ap);
  96     head = buffer;
  97     va_end (ap);
  98     while ((written = write (1, head, size)) != size) {
  99         if (written == -1)
 100             report (R_FATAL, "Can't write logs: %d", errno);
 101         head += written;
 102         size -= written;
 103     }
 104     free (buffer);
 105 }
 106
 107 int
 108 goodtagchar (char c)
 109 {
 110     return (('a'<=c && c<='z') ||
 111             ('A'<=c && c<='Z') ||
 112             ('0'<=c && c<='9') ||
 113             c=='-' || c=='.');
 114 }
 115
 116 const char *
 117 findbadtagchar (const char *tag)
 118 {
 119     while (*tag)
 120         if (goodtagchar (*tag)) tag++;
 121         else return tag;
 122     return NULL;
 123 }