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chkargs.c
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Editing: chkargs.c
/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #include <strings.h> #include <unistd.h> #include <dtrace.h> static int g_count; static int g_errs; static int g_fd; static int g_verbose; static int g_errexit; static char *g_progname; static int probe(dtrace_hdl_t *dtp, const dtrace_probedesc_t *pdp, void *data) { dtrace_probeinfo_t p; dtrace_argdesc_t arg; char buf[BUFSIZ]; int i; (void) printf("\r%6d", ++g_count); (void) fflush(stdout); if (dtrace_probe_info(dtp, pdp, &p) != 0) { (void) printf(" failed to get probe info for " "%s:%s:%s:%s [%d]\n", pdp->dtpd_provider, pdp->dtpd_mod, pdp->dtpd_func, pdp->dtpd_name, pdp->dtpd_id); g_errs++; return (0); } for (i = 0; i < p.dtp_argc; i++) { if (p.dtp_argv[i].dtt_type == CTF_ERR) { bzero(&arg, sizeof (dtrace_argdesc_t)); arg.dtargd_id = pdp->dtpd_id; arg.dtargd_ndx = i; (void) ioctl(g_fd, DTRACEIOC_PROBEARG, &arg); (void) printf(" failed to get types for args[%d] " "of %s:%s:%s:%s [%d]: <%s> -> <%s>\n", i, pdp->dtpd_provider, pdp->dtpd_mod, pdp->dtpd_func, pdp->dtpd_name, pdp->dtpd_id, arg.dtargd_native, arg.dtargd_xlate); g_errs++; if (g_errexit) return (-1); } else if (g_verbose) { (void) printf("%d args[%d] : %s\n", pdp->dtpd_id, i, ctf_type_name(p.dtp_argv[i].dtt_ctfp, p.dtp_argv[i].dtt_type, buf, sizeof (buf))); } } return (0); } int main(int argc, char *argv[]) { dtrace_probedesc_t pd, *pdp = NULL; dtrace_hdl_t *dtp; int err, c; char *p; g_progname = argv[0]; if ((dtp = dtrace_open(DTRACE_VERSION, 0, &err)) == NULL) { (void) fprintf(stderr, "%s: failed to open dtrace: %s\n", g_progname, dtrace_errmsg(dtp, err)); return (1); } while ((c = getopt(argc, argv, "evx:")) != -1) { switch (c) { case 'e': g_errexit++; break; case 'v': g_verbose++; break; case 'x': if ((p = strchr(optarg, '=')) != NULL) *p++ = '\0'; if (dtrace_setopt(dtp, optarg, p) != 0) { (void) fprintf(stderr, "%s: failed to set " "option -x %s: %s\n", g_progname, optarg, dtrace_errmsg(dtp, dtrace_errno(dtp))); return (2); } break; default: (void) fprintf(stderr, "Usage: %s [-ev] " "[-x opt[=arg]] [probedesc]\n", g_progname); return (2); } } argv += optind; argc -= optind; if (argc > 0) { if (dtrace_str2desc(dtp, DTRACE_PROBESPEC_NAME, argv[0], &pd)) { (void) fprintf(stderr, "%s: invalid probe description " "%s: %s\n", g_progname, argv[0], dtrace_errmsg(dtp, dtrace_errno(dtp))); return (2); } pdp = &pd; } g_fd = dtrace_ctlfd(dtp); (void) dtrace_probe_iter(dtp, pdp, probe, NULL); dtrace_close(dtp); (void) printf("\nTotal probes: %d\n", g_count); (void) printf("Total errors: %d\n\n", g_errs); return (g_errs != 0); }
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