a8f6a1c121
write generic stralloc and array textcode wrapper functions change textcode API to use long instead of int add cescape fmt and scan functions to textcode add fmt_foldwhitespace to textcode
24 lines
726 B
C
24 lines
726 B
C
#include "textcode.h"
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unsigned long scan_uuencoded(const char *src,char *dest,unsigned long *destlen) {
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unsigned int len;
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unsigned long tmp;
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register const unsigned char* s=(const unsigned char*) src;
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const char* orig=dest;
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if ((len=*s-' ')>64) return 0; len&=63;
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++s;
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while (len>0) {
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if (s[0]-' '>64 || s[1]-' '>64 || s[2]-' '>64 || s[3]-' '>64) return 0;
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tmp=(((s[0]-' ')&077) << (3*6)) +
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(((s[1]-' ')&077) << (2*6)) +
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(((s[2]-' ')&077) << (1*6)) +
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(((s[3]-' ')&077));
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s+=4;
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if (len) { *dest=tmp>>16; ++dest; --len; }
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if (len) { *dest=tmp>>8; ++dest; --len; }
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if (len) { *dest=tmp&0xff; ++dest; --len; }
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}
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*destlen=dest-orig;
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return (const char*)s-src;
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}
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