string.c

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#include "libc.h"
#include <lely/libc/string.h>
 
#include <stdlib.h>
 
#if !(_MSC_VER >= 1400) && !(_POSIX_C_SOURCE >= 200809L) \
                && !defined(__MINGW32__)
 
char *
strdup(const char *s)
{
        size_t size = strlen(s) + 1;
        char *dup = malloc(size);
        if (!dup)
                return NULL;
        return memcpy(dup, s, size);
}
 
#endif
 
#if !(_POSIX_C_SOURCE >= 200809L)
 
char *
strndup(const char *s, size_t size)
{
        size = strnlen(s, size);
        char *dup = malloc(size + 1);
        if (!dup)
                return NULL;
        dup[size] = '\0';
        return memcpy(dup, s, size);
}
 
#endif
 
#if !(_MSC_VER >= 1400) && !(_POSIX_C_SOURCE >= 200809L) \
                && !defined(__MINGW32__)
 
size_t
strnlen(const char *s, size_t maxlen)
{
        size_t size = 0;
        while (size < maxlen && *s++)
                size++;
        return size;
}
 
#endif