/[tar]/tar/src/names.c
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revision 1.26 by gray, Thu Sep 4 15:47:26 2003 UTC revision 1.27 by eggert, Mon Sep 22 18:54:50 2003 UTC
# Line 1043  safer_name_suffix (char const *file_name Line 1043  safer_name_suffix (char const *file_name
1043    return (char *) p;    return (char *) p;
1044  }  }
1045    
1046  char const *  /* Return the size of the prefix of FILE_NAME that is removed after
1047  cut_path_elements (char const *file_name, size_t num)     stripping NUM leading path name components.  NUM must be
1048       positive.  */
1049    
1050    size_t
1051    stripped_prefix_len (char const *file_name, size_t num)
1052  {  {
1053    char const *p = file_name;    char const *p = file_name + FILESYSTEM_PREFIX_LEN (file_name);
1054    if (ISSLASH (*p))    while (ISSLASH (*p))
1055      p++;      p++;
1056    for (; *p; p++)    while (*p)
1057      {      {
1058        if (ISSLASH (*p))        bool slash = ISSLASH (*p);
1059          p++;
1060          if (slash)
1061          {          {
1062            if (--num == 0)            if (--num == 0)
1063              return p + 1;              return p - file_name;
1064              while (ISSLASH (*p))
1065                p++;
1066          }          }
1067      }      }
1068    return NULL;    return -1;
1069  }  }
1070    
1071  /* Return nonzero if NAME contains ".." as a path name component.  */  /* Return nonzero if NAME contains ".." as a path name component.  */

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