| |
| /* |
| * THIS CODE IS SPECIFICALLY EXEMPTED FROM THE NCURSES PACKAGE COPYRIGHT. |
| * You may freely copy it for use as a template for your own field types. |
| * If you develop a field type that might be of general use, please send |
| * it back to the ncurses maintainers for inclusion in the next version. |
| */ |
| /*************************************************************************** |
| * * |
| * Author : Per Foreby, perf@efd.lth.se * |
| * * |
| ***************************************************************************/ |
| |
| #include "form.priv.h" |
| |
| MODULE_ID("$Id: fty_ipv4.c,v 1.1.1.1 2012/03/29 17:21:09 uid42307 Exp $") |
| |
| /*--------------------------------------------------------------------------- |
| | Facility : libnform |
| | Function : static bool Check_IPV4_Field( |
| | FIELD * field, |
| | const void * argp) |
| | |
| | Description : Validate buffer content to be a valid IP number (Ver. 4) |
| | |
| | Return Values : TRUE - field is valid |
| | FALSE - field is invalid |
| +--------------------------------------------------------------------------*/ |
| static bool Check_IPV4_Field(FIELD * field, const void * argp) |
| { |
| char *bp = field_buffer(field,0); |
| int num = 0, len; |
| unsigned int d1, d2, d3, d4; |
| |
| argp=0; /* Silence unused parameter warning. */ |
| |
| if(isdigit((int)(*bp))) /* Must start with digit */ |
| { |
| num = sscanf(bp, "%u.%u.%u.%u%n", &d1, &d2, &d3, &d4, &len); |
| if (num == 4) |
| { |
| bp += len; /* Make bp point to what sscanf() left */ |
| while (*bp && isspace((int)(*bp))) |
| bp++; /* Allow trailing whitespace */ |
| } |
| } |
| return ((num != 4 || *bp || d1 > 255 || d2 > 255 |
| || d3 > 255 || d4 > 255) ? FALSE : TRUE); |
| } |
| |
| /*--------------------------------------------------------------------------- |
| | Facility : libnform |
| | Function : static bool Check_IPV4_Character( |
| | int c, |
| | const void *argp ) |
| | |
| | Description : Check a character for unsigned type or period. |
| | |
| | Return Values : TRUE - character is valid |
| | FALSE - character is invalid |
| +--------------------------------------------------------------------------*/ |
| static bool Check_IPV4_Character(int c, const void * argp) |
| { |
| argp=0; /* Silence unused parameter warning. */ |
| return ((isdigit(c) || (c=='.')) ? TRUE : FALSE); |
| } |
| |
| static FIELDTYPE typeIPV4 = { |
| _RESIDENT, |
| 1, /* this is mutable, so we can't be const */ |
| (FIELDTYPE *)0, |
| (FIELDTYPE *)0, |
| NULL, |
| NULL, |
| NULL, |
| Check_IPV4_Field, |
| Check_IPV4_Character, |
| NULL, |
| NULL |
| }; |
| |
| FIELDTYPE* TYPE_IPV4 = &typeIPV4; |
| |
| /* fty_ipv4.c ends here */ |
