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strlcpy.c File Reference
#include "c.h"
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Functions

size_t strlcpy (char *dst, const char *src, size_t siz)
 

Function Documentation

◆ strlcpy()

size_t strlcpy ( char *  dst,
const char *  src,
size_t  siz 
)

Definition at line 45 of file strlcpy.c.

46 {
47  char *d = dst;
48  const char *s = src;
49  size_t n = siz;
50 
51  /* Copy as many bytes as will fit */
52  if (n != 0)
53  {
54  while (--n != 0)
55  {
56  if ((*d++ = *s++) == '\0')
57  break;
58  }
59  }
60 
61  /* Not enough room in dst, add NUL and traverse rest of src */
62  if (n == 0)
63  {
64  if (siz != 0)
65  *d = '\0'; /* NUL-terminate dst */
66  while (*s++)
67  ;
68  }
69 
70  return (s - src - 1); /* count does not include NUL */
71 }

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