/* $OpenBSD: keynote-sigver.c,v 1.15 2004/06/29 11:35:56 msf Exp $ */ /* * The author of this code is Angelos D. Keromytis (angelos@dsl.cis.upenn.edu) * * This code was written by Angelos D. Keromytis in Philadelphia, PA, USA, * in April-May 1998 * * Copyright (C) 1998, 1999 by Angelos D. Keromytis. * * Permission to use, copy, and modify this software with or without fee * is hereby granted, provided that this entire notice is included in * all copies of any software which is or includes a copy or * modification of this software. * * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR * IMPLIED WARRANTY. IN PARTICULAR, THE AUTHORS MAKES NO * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR * PURPOSE. */ #include <sys/types.h> #include <sys/stat.h> #include <ctype.h> #include <fcntl.h> #include <regex.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include "header.h" #include "keynote.h" void sigverusage(void); void sigverusage(void) { fprintf(stderr, "Arguments:\n"); fprintf(stderr, "\t<AssertionFile>\n"); } void keynote_sigver(int argc, char *argv[]) { char *buf, **assertlist; int fd, i, n, j; struct stat sb; if (argc != 2) { sigverusage(); exit(0); } /* Open and read assertion file */ fd = open(argv[1], O_RDONLY, 0); if (fd < 0) { perror(argv[1]); exit(1); } if (fstat(fd, &sb) < 0) { perror("fstat()"); exit(1); } if (sb.st_size == 0) /* Paranoid */ { fprintf(stderr, "Illegal assertion-file size 0\n"); exit(1); } buf = (char *) calloc(sb.st_size + 1, sizeof(char)); if (buf == (char *) NULL) { perror("calloc()"); exit(1); } if (read(fd, buf, sb.st_size) < 0) { perror("read()"); exit(1); } close(fd); assertlist = kn_read_asserts(buf, sb.st_size, &n); if (assertlist == NULL) { fprintf(stderr, "Out of memory while allocating memory for " "assertions.\n"); exit(1); } if (n == 0) { fprintf(stderr, "No assertions found in %s.\n", argv[1]); free(assertlist); exit(1); } free(buf); for (j = 0; j < n; j++) { i = kn_verify_assertion(assertlist[j], strlen(assertlist[j])); if (i == -1) { switch (keynote_errno) { case ERROR_MEMORY: fprintf(stderr, "Out of memory while parsing assertion %d.\n", j); break; case ERROR_SYNTAX: fprintf(stderr, "Syntax error while parsing assertion %d.\n", j); break; default: fprintf(stderr, "Unknown error while parsing assertion %d.\n", j); } } else { if (i == SIGRESULT_TRUE) fprintf(stdout, "Signature on assertion %d verified.\n", j); else { if (keynote_errno != 0) fprintf(stdout, "Signature on assertion %d could not be verified " "(keynote_errno = %d).\n", j, keynote_errno); else fprintf(stdout, "Signature on assertion %d did not verify!\n", j); } } free(assertlist[j]); } free(assertlist); exit(0); }