34 lines
767 B
C
34 lines
767 B
C
#include <errno.h> /* errno */
|
|
#include <stdio.h> /* fprintf(3), stderr, "psops.c" */
|
|
#include <string.h> /* strerror(3) */
|
|
#include <sysexits.h> /* EX_OSERR, "psops.c" */
|
|
#include <unistd.h> /* execvp(3) */
|
|
#include <sys/types.h> /* <sys/wait.h> */
|
|
#include <sys/wait.h> /* wait(2) */
|
|
|
|
#include "libpsargs.h" /* corresponding_arg(3), "psops.c" */
|
|
|
|
static char *program_name = "pscat";
|
|
|
|
int
|
|
f(char **argv){
|
|
int child;
|
|
char **corr;
|
|
|
|
*(corr = corresponding_arg(argv)) = NULL;
|
|
switch(fork()){
|
|
case -1:
|
|
fprintf(stderr, "%s: %s\n", program_name, strerror(errno));
|
|
return EX_OSERR;
|
|
case 0: execvp(argv[1], argv+1);
|
|
default:
|
|
wait(&child);
|
|
argv = corr;
|
|
return *++argv == NULL
|
|
? WIFEXITED(child) * WEXITSTATUS(child)
|
|
: f(argv);
|
|
}
|
|
}
|
|
|
|
#include "psops.c"
|