diff options
Diffstat (limited to 'bouncesaying.c')
-rw-r--r-- | bouncesaying.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/bouncesaying.c b/bouncesaying.c new file mode 100644 index 0000000..c7d0026 --- /dev/null +++ b/bouncesaying.c @@ -0,0 +1,41 @@ +#include "fork.h" +#include "strerr.h" +#include "error.h" +#include "wait.h" +#include "sig.h" +#include "exit.h" + +#define FATAL "bouncesaying: fatal: " + +void main(argc,argv) +int argc; +char **argv; +{ + int pid; + int wstat; + + if (!argv[1]) + strerr_die1x(100,"bouncesaying: usage: bouncesaying error [ program [ arg ... ] ]"); + + if (argv[2]) { + pid = fork(); + if (pid == -1) + strerr_die2sys(111,FATAL,"unable to fork: "); + if (pid == 0) { + execvp(argv[2],argv + 2); + if (error_temp(errno)) _exit(111); + _exit(100); + } + if (wait_pid(&wstat,pid) == -1) + strerr_die2x(111,FATAL,"wait failed"); + if (wait_crashed(wstat)) + strerr_die2x(111,FATAL,"child crashed"); + switch(wait_exitcode(wstat)) { + case 0: break; + case 111: strerr_die2x(111,FATAL,"temporary child error"); + default: _exit(0); + } + } + + strerr_die1x(100,argv[1]); +} |