ref: 5e010fd8a82ec3b6552b4002bcd4be0586081e9a
dir: /sys/src/ape/lib/ap/plan9/execlp.c/
#include <unistd.h> #include <string.h> #include <sys/limits.h> /* * BUG: instead of looking at PATH env variable, * just try prepending /bin/ if name fails... */ extern char **environ; int execlp(const char *name, const char *arg0, ...) { int n; char buf[PATH_MAX]; if((n=execve(name, &arg0, environ)) < 0){ if(strchr("/.", name[0]) != 0 || strlen(name) >= sizeof(buf)-5) return n; strcpy(buf, "/bin/"); strcpy(buf+5, name); n = execve(buf, &arg0, environ); } return n; }