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STRDUP(3) Library Functions Manual STRDUP(3)

strdup, strndupsave a copy of a string

library “libc”

#include <string.h>

char *
strdup(const char *str);

char *
strndup(const char *str, size_t len);

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

free(3), malloc(3), wcsdup(3)

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

December 5, 2008 DragonFly-5.6.1