strdup(3) - NetBSD Manual Pages

Command: Section: Arch: Collection:  
STRDUP(3)               NetBSD Library Functions Manual              STRDUP(3)

strdup, strndup -- save a copy of a string
Standard C Library (libc, -lc)
#include <string.h> char * strdup(const char *str); char * strndup(const char *str, size_t len);
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. The strndup() function copies at most len characters from the string str always NUL terminating the copied string.
The following will point p to an allocated area of memory containing the nul-terminated string "foobar": char *p; if ((p = strdup("foobar")) == NULL) { fprintf(stderr, "Out of memory.\n"); exit(1); }
The strdup() function may fail and set the external variable errno for any of the errors specified for the library function malloc(3).
free(3), malloc(3), strcpy(3), strlen(3)
The strdup() function first appeared in 4.4BSD. The strndup() function was added in NetBSD 4.0. NetBSD 5.0 June 22, 2008 NetBSD 5.0
Powered by man-cgi (2021-06-01). Maintained for NetBSD by Kimmo Suominen. Based on man-cgi by Panagiotis Christias.