1 | /* |
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2 | * MFILL Shell Command Implmentation |
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3 | * |
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4 | * Author: Fernando RUIZ CASAS |
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5 | * Work: fernando.ruiz@ctv.es |
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6 | * Home: correo@fernando-ruiz.com |
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7 | * |
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8 | * The license and distribution terms for this file may be |
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9 | * found in the file LICENSE in this distribution or at |
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10 | * http://www.rtems.org/license/LICENSE. |
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11 | */ |
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12 | |
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13 | #ifdef HAVE_CONFIG_H |
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14 | #include "config.h" |
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15 | #endif |
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16 | |
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17 | #include <ctype.h> |
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18 | #include <stdio.h> |
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19 | #include <string.h> |
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20 | |
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21 | #include <rtems.h> |
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22 | #include <rtems/shell.h> |
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23 | #include <rtems/stringto.h> |
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24 | #include "internal.h" |
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25 | |
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26 | static int rtems_shell_main_mfill( |
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27 | int argc, |
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28 | char *argv[] |
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29 | ) |
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30 | { |
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31 | unsigned long tmp; |
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32 | void *addr; |
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33 | size_t size; |
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34 | unsigned char value; |
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35 | |
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36 | if ( argc != 4 ) { |
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37 | fprintf(stderr,"%s: too few arguments\n", argv[0]); |
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38 | return -1; |
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39 | } |
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40 | |
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41 | /* |
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42 | * Convert arguments into numbers |
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43 | */ |
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44 | if ( rtems_string_to_pointer(argv[1], &addr, NULL) ) { |
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45 | printf( "Address argument (%s) is not a number\n", argv[1] ); |
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46 | return -1; |
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47 | } |
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48 | |
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49 | if ( rtems_string_to_unsigned_long(argv[2], &tmp, NULL, 0) ) { |
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50 | printf( "Size argument (%s) is not a number\n", argv[2] ); |
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51 | return -1; |
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52 | } |
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53 | size = (size_t) tmp; |
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54 | |
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55 | if ( rtems_string_to_unsigned_char(argv[3], &value, NULL, 0) ) { |
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56 | printf( "Value argument (%s) is not a number\n", argv[3] ); |
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57 | return -1; |
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58 | } |
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59 | |
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60 | /* |
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61 | * Now fill the memory. |
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62 | */ |
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63 | memset(addr, value, size); |
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64 | |
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65 | return 0; |
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66 | } |
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67 | |
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68 | rtems_shell_cmd_t rtems_shell_MFILL_Command = { |
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69 | "mfill", /* name */ |
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70 | "mfill address size value", /* usage */ |
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71 | "mem", /* topic */ |
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72 | rtems_shell_main_mfill, /* command */ |
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73 | NULL, /* alias */ |
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74 | NULL /* next */ |
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75 | }; |
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