/[winpt]/trunk/Src/wptUtil.cpp
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revision 60 by twoaday, Wed Nov 2 14:35:48 2005 UTC revision 328 by twoaday, Fri Sep 25 16:07:38 2009 UTC
# Line 1  Line 1 
1  /* wptUtil.cpp - Helper functions  /* wptUtil.cpp - Helper functions
2   *      Copyright (C) 2005 Timo Schulz   *      Copyright (C) 2005, 2006, 2008 Timo Schulz
3   *   *
4   * This file is part of WinPT.   * This file is part of WinPT.
5   *   *
# Line 12  Line 12 
12   * but WITHOUT ANY WARRANTY; without even the implied warranty of   * but WITHOUT ANY WARRANTY; without even the implied warranty of
13   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14   * General Public License for more details.   * General Public License for more details.
  *  
  * You should have received a copy of the GNU General Public License  
  * along with WinPT; if not, write to the Free Software Foundation,  
  * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA  
15   */   */
16  #ifdef HAVE_CONFIG_H  #ifdef HAVE_CONFIG_H
17  #include <config.h>  #include <config.h>
18  #endif  #endif
19    
20    #include <windows.h>
21  #include <string.h>  #include <string.h>
22  #include <string.h>  #include <stdlib.h>
23  #include <stdio.h>  #include <stdio.h>
24  #include <ctype.h>  #include <ctype.h>
25    
26    #include "wptTypes.h"
27    #include "StringBuffer.h"
28    
29  /* code taken from glibc-2.2.1/sysdeps/generic/strsep.c */  /* code taken from glibc-2.2.1/sysdeps/generic/strsep.c */
30  extern "C" char*  char*
31  strsep (char **stringp, const char *delim)  strsep (char **stringp, const char *delim)
32  {  {
33      char *begin, *end;      char *begin, *end;
# Line 54  strsep (char **stringp, const char *deli Line 54  strsep (char **stringp, const char *deli
54      }      }
55      else /* Find the end of the token.  */      else /* Find the end of the token.  */
56          end = strpbrk (begin, delim);          end = strpbrk (begin, delim);
57      if ( end ){      if (end) {
58          /* Terminate the token and set *STRINGP past NUL character.  */          /* Terminate the token and set *STRINGP past NUL character.  */
59          *end++ = '\0';          *end++ = '\0';
60          *stringp = end;          *stringp = end;
# Line 68  strsep (char **stringp, const char *deli Line 68  strsep (char **stringp, const char *deli
68    
69    
70  /* Like strstr but this version is case in-sentensive. */  /* Like strstr but this version is case in-sentensive. */
71  extern "C" const char *  const char *
72  stristr (const char *buf, const char *sub)  stristr (const char *buf, const char *sub)
73  {  {
74      const char *t, *s ;      const char *t, *s ;
75      size_t n;      size_t n;
76      size_t buflen = strlen (buf);      size_t buflen = strlen (buf);
77    
78      for( t=buf, n=buflen, s=sub ; n ; t++, n-- ) {      for (t=buf, n=buflen, s=sub ; n ; t++, n--) {
79          if( toupper(*t) == toupper(*s) ) {          if (toupper (*t) == toupper (*s)) {
80              for( buf=t++, buflen = n--, s++;              for (buf=t++, buflen = n--, s++;
81                   n && toupper(*t) == toupper(*s); t++, s++, n-- )                   n && toupper(*t) == toupper(*s); t++, s++, n--)
82                  ;                  ;
83              if( !*s )              if (!*s)
84                  return buf;                  return buf;
85              t = buf; n = buflen; s = sub ;              t = buf;
86                n = buflen;
87                s = sub;
88          }          }
89      }      }
90      return NULL ;      return NULL ;
91  }  }
92    
93    
94    /* Check if @fname is a valid file name on a Window file system.
95       If is_path = 1, @fname is treated as a file name without any separators. */
96    int
97    check_file_name (const char *fname, int is_path)
98    {
99        const char *not_allowed = "/*?\"<>|";
100    
101        /* If we are not in path mode (@is_path = 1) we also consider
102           path separators as illegal chars. */
103        if (!is_path && (strchr (fname, ':') || strchr (fname, '\\')))
104            return -1;
105    
106        for (size_t i=0; i < strlen (fname); i++) {
107            if (strchr (not_allowed, fname[i]))
108                return -1;
109        }
110        return 0;
111    }
112    
113    
114    /* Check if the email address @email only contain valid characters.
115       Return 0 on success. */
116    int
117    check_email_address (const char *email)
118    {
119        const char *allowed = "@._-%+;";
120        size_t i, len = strlen (email);
121    
122        if (len < 3 || !strchr (email, '@'))
123            return -1;
124        for (i=0; i < len; i++) {
125            if (isxdigit (email[i]) || isalpha (email[i])
126                || strchr (allowed, email[i]))
127                continue;
128            else
129                return -1;
130        }
131        return 0;
132    }
133    
134    
135    /* Return a substring of @str from the position @begin
136       to position @end. */
137    char*
138    substr (const char *str, unsigned int begin, unsigned int end)
139    {    
140        char *p;
141        size_t i, pos;
142    
143        if (end > strlen (str) || begin > strlen (str) || (end-begin) < 0)
144            return NULL;
145    
146        p = new char[end-begin+1];
147        if (!p)
148            BUG (0);
149        for (i = begin, pos=0; i < end; i++)
150            p[pos++] = str[i];
151        p[pos] = '\0';
152        return p;
153    }
154    
155    
156    /* Remove %AB sequences from the input buffer @in
157       and store the raw data in @out. */
158    void
159    unhexify_buffer (const char *in, char **r_out)
160    {
161        char temp[3], *out;
162        size_t len, pos, i=0;
163    
164        len = strlen (in);
165        out = new char[len+1];
166        if (!out)
167            BUG (0);
168        memset (out, 0, len+1);
169        for (pos = 0; pos < len; pos++) {
170            if (in[pos] == '%' && in[pos+1] == '%')
171                out[i++] = '%';
172            else if (in[pos] == '%') {
173                temp[0] = in[++pos];
174                temp[1] = in[++pos];
175                temp[2] = 0;
176                out[i++] = (char)strtoul (temp, NULL, 16);
177            }
178            else
179                out[i++] = in[pos];
180        }
181        out[i] = 0;
182        *r_out = out;
183    }
184    
185    
186    /* Safe strdup version (C++ version). */
187    char*
188    m_strdup (const char *str)
189    {
190        char *p = new char[strlen (str) + 1];
191        if (!p)
192            BUG (0);
193        strcpy (p, str);
194        return p;
195    }
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