27 lines
521 B
C
27 lines
521 B
C
#include "shgetc.h"
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void __shlim(FILE *f, off_t lim)
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{
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f->shlim = lim;
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f->shcnt = f->rend - f->rpos;
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if (lim && f->shcnt > lim)
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f->shend = f->rpos + lim;
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else
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f->shend = f->rend;
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}
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int __shgetc(FILE *f)
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{
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int c;
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if (f->shlim && f->shcnt >= f->shlim || (c=__uflow(f)) < 0) {
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f->shend = 0;
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return EOF;
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}
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if (f->shlim && f->rend - f->rpos > f->shlim - f->shcnt - 1)
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f->shend = f->rpos + (f->shlim - f->shcnt - 1);
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else
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f->shend = f->rend;
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if (f->rend) f->shcnt += f->rend - f->rpos + 1;
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return c;
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}
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