/[winpt]/trunk/Src/wptUtil.cpp
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revision 60 by twoaday, Wed Nov 2 14:35:48 2005 UTC revision 247 by twoaday, Fri Jul 21 08:19:24 2006 UTC
# Line 17  Line 17 
17   * along with WinPT; if not, write to the Free Software Foundation,   * along with WinPT; if not, write to the Free Software Foundation,
18   * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA   * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19   */   */
20    
21  #ifdef HAVE_CONFIG_H  #ifdef HAVE_CONFIG_H
22  #include <config.h>  #include <config.h>
23  #endif  #endif
24    
25  #include <string.h>  #include <string.h>
26  #include <string.h>  #include <stdlib.h>
27  #include <stdio.h>  #include <stdio.h>
28  #include <ctype.h>  #include <ctype.h>
29    
30  /* code taken from glibc-2.2.1/sysdeps/generic/strsep.c */  /* code taken from glibc-2.2.1/sysdeps/generic/strsep.c */
31  extern "C" char*  char*
32  strsep (char **stringp, const char *delim)  strsep (char **stringp, const char *delim)
33  {  {
34      char *begin, *end;      char *begin, *end;
# Line 54  strsep (char **stringp, const char *deli Line 55  strsep (char **stringp, const char *deli
55      }      }
56      else /* Find the end of the token.  */      else /* Find the end of the token.  */
57          end = strpbrk (begin, delim);          end = strpbrk (begin, delim);
58      if ( end ){      if (end) {
59          /* Terminate the token and set *STRINGP past NUL character.  */          /* Terminate the token and set *STRINGP past NUL character.  */
60          *end++ = '\0';          *end++ = '\0';
61          *stringp = end;          *stringp = end;
# Line 68  strsep (char **stringp, const char *deli Line 69  strsep (char **stringp, const char *deli
69    
70    
71  /* Like strstr but this version is case in-sentensive. */  /* Like strstr but this version is case in-sentensive. */
72  extern "C" const char *  const char *
73  stristr (const char *buf, const char *sub)  stristr (const char *buf, const char *sub)
74  {  {
75      const char *t, *s ;      const char *t, *s ;
# Line 88  stristr (const char *buf, const char *su Line 89  stristr (const char *buf, const char *su
89      return NULL ;      return NULL ;
90  }  }
91    
92    
93    /* Check if @fname is a valid file name on a Window file system.
94       If is_path = 1, @fname is treated as a file name without any separators. */
95    int
96    check_file_name (const char *fname, int is_path)
97    {
98        const char *not_allowed = "/*?\"<>|";
99        size_t i;
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) {
104            if (strchr (fname, ':') || strchr (fname, '\\'))
105                return -1;
106        }
107    
108        for (i=0; i < strlen (fname); i++) {
109            if (strchr (not_allowed, fname[i]))
110                return -1;
111        }
112        return 0;
113    }
114    
115    
116    /* Check if the email address @email only contain valid characters.
117       Return 0 on success. */
118    int
119    check_email_address (const char *email)
120    {
121        const char *allowed = "@._-%+;";
122        size_t i;
123    
124        if (!strchr (email, '@'))
125            return -1;
126        for (i=0; i < strlen (email); i++) {
127            if (isxdigit (email[i]) || isalpha (email[i])
128                || strchr (allowed, email[i]))
129                continue;
130            else
131                return -1;
132        }
133        return 0;
134    }
135    
136    
137    /* Return a substring of @str from the position @begin
138       to position @end. */
139    char*
140    substr (const char *str, unsigned int begin, unsigned int end)
141    {    
142        char *p;
143        size_t i, pos;
144    
145        if (end > strlen (str) || begin > strlen (str) || (end-begin) < 0)
146            return NULL;
147    
148        p = new char[end-begin+1];
149        if (!p)
150            abort ();
151    
152        for (i = begin, pos=0; i < end; i++)
153            p[pos++] = str[i];
154        p[pos] = '\0';
155        return p;
156    }
157    
158    
159    /* Remove %AB sequences from the input buffer @in
160       and store the raw data in @out. */
161    void
162    unhexify_buffer (const char *in, char **r_out)
163    {
164        char temp[3], *out;
165        size_t len, pos, i=0;
166    
167        len = strlen (in);
168        out = new char[len+1];
169        if (!out)
170            abort ();
171        memset (out, 0, len+1);
172        for (pos = 0; pos < len; pos++) {
173            if (in[pos] == '%' && in[pos+1] == '%')
174                out[i++] = '%';
175            else if (in[pos] == '%') {
176                temp[0] = in[++pos];
177                temp[1] = in[++pos];
178                temp[2] = 0;
179                out[i++] = (char)strtoul (temp, NULL, 16);
180            }
181            else
182                out[i++] = in[pos];
183        }
184        out[i] = 0;
185        *r_out = out;
186    }
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