STRDUP(3)

NAME
strdup, strndup - save a copy of a string

LIBRARY
libc

SYNOPSIS
#include <string.h>
char *
strdup(const char *str);
char *
strndup(const char *str, size_t len);

DESCRIPTION
The strdup() function allocates sufficient memory for a copy of the string str, does the copy, and returns a pointer to it. The pointer may subsequently be used as an argument to the function free(3).

If insufficient memory is available, NULL is returned and errno is set to ENOMEM.

The strndup() function copies at most len characters from the string str always NUL terminating the copied string.

SEE ALSO
free(3), malloc(3), wcsdup(3)

STANDARDS
The strdup() function is specified by p1003.1-2001. The strndup() function is specified by p1003.1-2008.

HISTORY
The strdup() function first appeared in 4.4BSD. The strndup() function was added in FreeBSD 7.2.