source: trunk/minix/lib/other/setenv.c@ 15

#include        <stdlib.h>
#include        <string.h>

int
setenv(const char *name, const char *val, int overwrite)
{
        char *bf;
        int r;

        if(!overwrite && getenv(name))
                return 0;

        if(!(bf=malloc(strlen(name)+strlen(val)+2)))
                return -1;

        strcpy(bf, name);
        strcat(bf, "=");
        strcat(bf, val);

        r = putenv(bf);

        return r == 0 ? 0 : -1;
}