root / prex-0.9.0 / bsp / drv / lib / endian.c @ 03e9c04a
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1 | 03e9c04a | Brad Neuman | /*
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2 | * Written by J.T. Conklin <jtc@NetBSD.org>.
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3 | * Public domain.
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4 | */
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5 | |||
6 | #include <driver.h> |
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7 | #include <sys/types.h> |
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8 | #include <sys/endian.h> |
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9 | |||
10 | #undef htonl
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11 | #undef htons
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12 | #undef ntohl
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13 | #undef ntohs
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14 | |||
15 | #if BYTE_ORDER == LITTLE_ENDIAN
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16 | uint32_t |
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17 | htonl(uint32_t x) |
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18 | { |
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19 | |||
20 | u_char *s = (u_char *)&x; |
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21 | return (uint32_t)(s[0] << 24 | s[1] << 16 | s[2] << 8 | s[3]); |
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22 | } |
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23 | |||
24 | uint16_t |
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25 | htons(uint16_t x) |
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26 | { |
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27 | |||
28 | u_char *s = (u_char *) &x; |
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29 | return (uint16_t)(s[0] << 8 | s[1]); |
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30 | } |
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31 | |||
32 | uint32_t |
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33 | ntohl(uint32_t x) |
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34 | { |
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35 | |||
36 | u_char *s = (u_char *)&x; |
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37 | return (uint32_t)(s[0] << 24 | s[1] << 16 | s[2] << 8 | s[3]); |
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38 | } |
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39 | |||
40 | uint16_t |
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41 | ntohs(uint16_t x) |
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42 | { |
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43 | |||
44 | u_char *s = (u_char *) &x; |
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45 | return (uint16_t)(s[0] << 8 | s[1]); |
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46 | } |
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47 | #endif |