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test/ptrace/scescx.c: fix printing of braces for syscalls without args

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Also do not print stray closing brace for error condition.

Sponsored by:	The FreeBSD Foundation
MFC after:	3 days
This commit is contained in:
Konstantin Belousov 2021-09-16 20:23:11 +03:00
parent f575573ca5
commit 9a8eb5db55
1 changed files with 3 additions and 2 deletions
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5
tools/test/ptrace/scescx.c
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@ -196,16 +196,17 @@ wait_info(int pid, int status, struct ptrace_lwpinfo *lwpinfo)
(caddr_t)args, lwpinfo->pl_syscall_narg *
sizeof(long));
if (error == 0) {
printf("(");
for (i = 0; i < (int)lwpinfo->pl_syscall_narg;
i++) {
printf("%c%#lx", i == 0 ? '(' : ',',
printf("%s%#lx", i == 0 ? "" : ",",
args[i]);
}
printf(")");
} else {
fprintf(stderr, "PT_GET_SC_ARGS failed: %s",
strerror(errno));
}
printf(")");
free(args);
}
}