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git://sourceware.org/git/newlib-cygwin.git
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d6593503c6
David Carne <davidcarne@gmail.com>
* libc/string/strndup_r.c (_strndup_r): Use strnlen logic
instead of strlen to determine number of bytes to copy.
* libc/string/strnlen.c (strnlen): Fix so check for max limit occurs
before looking at storage location.
28 lines
450 B
C
28 lines
450 B
C
#include <reent.h>
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#include <stdlib.h>
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#include <string.h>
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char *
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_DEFUN (_strndup_r, (reent_ptr, str, n),
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struct _reent *reent_ptr _AND
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_CONST char *str _AND
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size_t n)
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{
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_CONST char *ptr = str;
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size_t len;
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char *copy;
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while (n-- > 0 && *ptr)
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ptr++;
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len = ptr - str;
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copy = _malloc_r (reent_ptr, len + 1);
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if (copy)
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{
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memcpy (copy, str, len);
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copy[len] = '\0';
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}
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return copy;
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}
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