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1 perry 1 STRCPY
2 !!!STRCPY
3 NAME
4 SYNOPSIS
5 DESCRIPTION
6 RETURN VALUE
7 BUGS
8 CONFORMING TO
9 SEE ALSO
10 ----
11 !!NAME
12
13
14 strcpy, strncpy - copy a string
15 !!SYNOPSIS
16
17
18 __#include
19 __''dest''__, const char *__''src''__);
20 char *strncpy(char *__''dest''__, const char *__''src''__, size_t__ ''n''__);
21 __
22 !!DESCRIPTION
23
24
25 The __strcpy()__ function copies the string pointed to by
26 ''src'' (including the terminating `0' character) to the
27 array pointed to by ''dest''. The strings may not
28 overlap, and the destination string ''dest'' must be
29 large enough to receive the copy.
30
31
32 The __strncpy()__ function is similar, except that not
33 more than ''n'' bytes of ''src'' are copied. Thus, if
34 there is no null byte among the first ''n'' bytes of
35 ''src'', the result wil not be
36 null-terminated.
37
38
39 In the case where the length of ''src'' is less than that
40 of ''n'', the remainder of ''dest'' will be padded
41 with nulls.
42 !!RETURN VALUE
43
44
45 The __strcpy()__ and __strncpy()__ functions return a
46 pointer to the destination string ''dest''.
47 !!BUGS
48
49
50 If the destination string of a __strcpy()__ is not large
51 enough (that is, if the programmer was stupid/lazy, and
52 failed to check the size before copying) then anything might
53 happen. Overflowing fixed length strings is a favourite
54 cracker technique.
55 !!CONFORMING TO
56
57
58 SVID 3, POSIX, BSD 4.3, ISO 9899
59 !!SEE ALSO
60
61
62 bcopy(3), memccpy(3), memcpy(3),
63 memmove(3)
64 ----
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