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Add isascii and friends macros in inet.c so there's no dependency on ctype.h

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jani 2003-07-25 13:06:37 +00:00
parent 23f6866009
commit 2f35d6e307
1 changed files with 10 additions and 0 deletions
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10
src/core/inet.c
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@ -169,6 +169,16 @@ inet_chksum_pbuf(struct pbuf *p)
return ~(acc & 0xffffUL);
}
/* Here for now until needed in other places in lwIP */
#ifndef isascii
#define in_range(c, lo, up) ((u8_t)c >= lo && (u8_t)c <= up)
#define isascii(c) in_range(c, 0x20, 0x7f)
#define isdigit(c) in_range(c, '0', '9')
#define isxdigit(c) (isdigit(c) || in_range(c, 'a', 'f') || in_range(c, 'A', 'F'))
#define islower(c) in_range(c, 'a', 'z')
#define isspace(c) (c == ' ' || c == '\f' || c == '\n' || c == '\r' || c == '\t' || c == '\v')
#endif
/*-----------------------------------------------------------------------------------*/
/*
* Ascii internet address interpretation routine.