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#ifndef _POSIX_SOURCE
# include <libc.h>
#else
# include <unistd.h>
# include <stdlib.h>
#endif
#include <string.h>
#include <sys/signal.h>
void putenv(char* name)
{
extern char** environ;
static int was_mallocated = 0;
int size;
/* Compute the size of environ array including the final NULL */
for (size = 1; environ[size++];)
/* nothing */;
if (!was_mallocated) {
char** tmp = environ;
int i;
was_mallocated = 1;
environ = malloc (size * sizeof(char*));
for (i = 0; i < size; i++)
environ[i] = tmp[i];
}
environ = realloc (environ, (size + 1) * sizeof (char*));
environ[size - 1] = strcpy (malloc (strlen (name) + 1), name);
environ[size] = NULL;
}
char* strdup (const char* string)
{
return strcpy (malloc (strlen (string) + 1), string);
}
#ifndef _POSIX_SOURCE
int sigaddset(int *set, int signo)
{
*set |= sigmask(signo);
return *set;
}
int sigemptyset(int *set)
{
return (*set = 0);
}
char *getcwd(char *buf, size_t size)
{
return getwd (buf);
}
#endif
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