uucopy(2) System Calls uucopy(2)NAME
uucopy - no-fault memory-to-memory copy
SYNOPSIS
#include <strings.h>
int uucopy(const void *s1, void *s2, size_t n);
DESCRIPTION
The uucopy() function copies n bytes from memory area s1 to s2. Copying between objects that overlap could corrupt one or both buffers.
Unlike bcopy(3C), uucopy() does not cause a segmentation fault if either the source or destination buffer includes an illegal address.
Instead, it returns -1 and sets errno to EFAULT. This error could occur after the operation has partially completed, so the contents of the
buffer at s2 are defined if the operation fails.
RETURN VALUES
Upon successful completion, uucopy() returns 0. Otherwise, the function returns -1 and set errno to indicate the error.
ERRORS
The uucopy() function will fail if:
EFAULT Either the s1 or s2 arguments points to an illegal address.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Evolving |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO bcopy(3C), attributes(5)SunOS 5.11 12 Sep 2006 uucopy(2)
Check Out this Related Man Page
bstring(3C) Standard C Library Functions bstring(3C)NAME
bstring, bcopy, bcmp, bzero - memory operations
SYNOPSIS
#include <strings.h>
void bcopy(const void *s1, void *s2, size_t n);
int bcmp(const void *s1, const void *s2, size_t n);
void bzero(void *s, size_t n);
DESCRIPTION
The bcopy(), bcmp(), and bzero() functions operate as efficiently as possible on memory areas (arrays of bytes bounded by a count, not
terminated by a null character). They do not check for the overflow of any receiving memory area. These functions are similar to the
memcpy(), memcmp(), and memset() functions described on the memory(3C) manual page.
The bcopy() function copies n bytes from memory area s1 to s2. Copying between objects that overlap will take place correctly.
The bcmp() function compares the first n bytes of its arguments, returning 0 if they are identical and 1 otherwise. The bcmp() function
always returns 0 when n is 0.
The bzero() function sets the first n bytes in memory area s to 0.
WARNINGS
The bcopy() function takes parameters backwards from memcmp(). See memory(3C).
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO memory(3C), attributes(5), standards(5)SunOS 5.11 15 Apr 2002 bstring(3C)
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