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libc: Typecast to avoid overflow in inet_addr for AVR

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Signed-off-by: Brennan Ashton <bashton@brennanashton.com>
This commit is contained in:
Alan C. Assis 2020-07-19 15:25:47 +00:00 committed by Alan Carvalho de Assis
parent 470624fa78
commit 871613f271
1 changed files with 4 additions and 3 deletions
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7
libs/libc/net/lib_inetaddr.c
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@ -102,7 +102,7 @@ in_addr_t inet_addr(FAR const char *cp)
{
if ((a < 0x100) && (b < 0x1000000))
{
result = (a << 24) | b;
result = (((uint32_t) a) << 24) | b;
}
break;
}
@ -111,7 +111,7 @@ in_addr_t inet_addr(FAR const char *cp)
{
if ((a < 0x100) && (b < 0x100) && (c < 0x10000))
{
result = (a << 24) | (b << 16) | c;
result = (((uint32_t) a) << 24) | (((uint32_t) b) << 16) | c;
}
break;
}
@ -120,7 +120,8 @@ in_addr_t inet_addr(FAR const char *cp)
{
if ((a < 0x100) && (b < 0x100) && (c < 0x100) && (d < 0x100))
{
result = (a << 24) | (b << 16) | (c << 8) | d;
result = (((uint32_t) a) << 24) | (((uint32_t) b) << 16) |
(((uint32_t) c) << 8) | d;
}
break;
}