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1 | /* |
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2 | * Copyright (c) 2016 embedded brains GmbH. |
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3 | * |
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4 | * The license and distribution terms for this file may be |
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5 | * found in the file LICENSE in this distribution or at |
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6 | * http://www.rtems.org/license/LICENSE. |
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7 | */ |
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8 | |
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9 | #if HAVE_CONFIG_H |
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10 | #include "config.h" |
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11 | #endif |
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12 | |
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13 | #include <rtems/assoc.h> |
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14 | |
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15 | #include <stdbool.h> |
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16 | #include <string.h> |
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17 | |
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18 | static size_t space( size_t buffer_size, size_t len ) |
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19 | { |
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20 | if ( len < buffer_size ) { |
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21 | return buffer_size - len; |
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22 | } else { |
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23 | return 0; |
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24 | } |
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25 | } |
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26 | |
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27 | size_t rtems_assoc_32_to_string( |
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28 | uint32_t value, |
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29 | char *buffer, |
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30 | size_t buffer_size, |
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31 | const rtems_assoc_32_pair *pairs, |
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32 | size_t pair_count, |
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33 | const char *separator, |
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34 | const char *fallback |
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35 | ) |
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36 | { |
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37 | size_t len; |
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38 | size_t i; |
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39 | |
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40 | len = 0; |
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41 | |
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42 | for ( i = 0; i < pair_count ; ++i ) { |
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43 | const rtems_assoc_32_pair *p; |
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44 | |
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45 | p = &pairs[ i ]; |
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46 | |
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47 | if ( ( value & p->bits ) != 0 ) { |
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48 | if ( len > 0 ) { |
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49 | len += strlcpy( &buffer[ len ], separator, space( buffer_size, len ) ); |
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50 | } |
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51 | |
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52 | len += strlcpy( &buffer[ len ], p->name, space( buffer_size, len ) ); |
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53 | } |
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54 | } |
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55 | |
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56 | if ( len == 0 ) { |
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57 | len += strlcpy( buffer, fallback, buffer_size ); |
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58 | } |
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59 | |
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60 | return len; |
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61 | } |
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