115 lines
2.6 KiB
C
115 lines
2.6 KiB
C
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/wait.h>
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#include <spawn.h>
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#include <signal.h>
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#include <fcntl.h>
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#include <string.h>
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/* if it uses fork() why bother? */
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#undef fork
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#define NOTE(a) fprintf(stderr,"%s\n",a)
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pid_t fork (void) { NOTE("uses fork()"); return -1; }
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pid_t _fork (void) { NOTE("uses _fork()"); return -1; }
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pid_t __fork (void) { NOTE("uses __fork()"); return -1; }
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int
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main(argc, argv)
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int argc;
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char** argv;
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{
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char* s;
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pid_t pid;
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posix_spawnattr_t attr;
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int n;
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int status;
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char* cmd[3];
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char tmp[1024];
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if (argv[1])
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_exit(signal(SIGHUP, SIG_DFL) != SIG_IGN);
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signal(SIGHUP, SIG_IGN);
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if (posix_spawnattr_init(&attr))
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{
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NOTE("posix_spawnattr_init() FAILED");
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_exit(0);
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}
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if (posix_spawnattr_setpgroup(&attr, 0))
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{
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NOTE("posix_spawnattr_setpgroup() FAILED");
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_exit(0);
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}
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if (posix_spawnattr_setflags(&attr, POSIX_SPAWN_SETPGROUP))
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{
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NOTE("posix_spawnattr_setflags() FAILED");
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_exit(0);
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}
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/* first try an a.out and verify that SIGHUP is ignored */
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cmd[0] = argv[0];
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cmd[1] = "test";
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cmd[2] = 0;
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if (posix_spawn(&pid, cmd[0], 0, &attr, cmd, 0))
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{
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NOTE("posix_spawn() FAILED");
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_exit(0);
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}
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status = 1;
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if (wait(&status) < 0)
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{
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NOTE("wait() FAILED");
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_exit(0);
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}
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if (status != 0)
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{
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NOTE("SIGHUP ignored in parent not ignored in child");
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_exit(0);
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}
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/* must return exec-type errors or its useless to us *unless* there is no [v]fork() */
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n = strlen(cmd[0]);
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if (n >= (sizeof(tmp) - 3))
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{
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NOTE("test executable path too long");
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_exit(0);
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}
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strcpy(tmp, cmd[0]);
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tmp[n] = '.';
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tmp[n+1] = 's';
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tmp[n+2] = 'h';
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tmp[n+3] = 0;
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if ((n = open(tmp, O_CREAT|O_WRONLY, S_IRWXU|S_IRWXG|S_IRWXO)) < 0 ||
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chmod(tmp, S_IRWXU|S_IRWXG|S_IRWXO) < 0 ||
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write(n, "exit 99\n", 8) != 8 ||
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close(n) < 0)
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{
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NOTE("test script create FAILED");
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_exit(0);
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}
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cmd[0] = tmp;
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n = 0; /* 0 means reject */
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pid = -1;
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if (posix_spawn(&pid, cmd[0], 0, &attr, cmd, 0)) {
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n = 2; /* ENOEXEC produces posix_spawn() error => BEST */
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NOTE("ENOEXEC produces posix_spawn() error => BEST");
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}
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else if (pid == -1)
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NOTE("ENOEXEC returns pid == -1");
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else if (wait(&status) != pid)
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NOTE("ENOEXEC produces no child process");
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else if (!WIFEXITED(status))
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NOTE("ENOEXEC produces signal exit");
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else
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{
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status = WEXITSTATUS(status);
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if (status == 127)
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{
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NOTE("ENOEXEC produces exist status 127 => GOOD");
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n = 1; /* ENOEXEC produces exit status 127 => GOOD */
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}
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else if (status == 99)
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NOTE("ENOEXEC invokes sh");
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else if (status == 0)
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NOTE("ENOEXEC reports no error");
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}
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_exit(n);
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}
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