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/* $OpenBSD: keynote-sigver.c,v 1.16 2015/11/19 02:35:24 mmcc Exp $ */ |
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/* |
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* The author of this code is Angelos D. Keromytis (angelos@dsl.cis.upenn.edu) |
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* |
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* This code was written by Angelos D. Keromytis in Philadelphia, PA, USA, |
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* in April-May 1998 |
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* |
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* Copyright (C) 1998, 1999 by Angelos D. Keromytis. |
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* |
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* Permission to use, copy, and modify this software with or without fee |
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* is hereby granted, provided that this entire notice is included in |
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* all copies of any software which is or includes a copy or |
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* modification of this software. |
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* |
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* THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR |
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* IMPLIED WARRANTY. IN PARTICULAR, THE AUTHORS MAKES NO |
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* REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE |
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* MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR |
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* PURPOSE. |
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*/ |
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#include <sys/types.h> |
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#include <sys/stat.h> |
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#include <ctype.h> |
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#include <fcntl.h> |
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#include <regex.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
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#include "header.h" |
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#include "keynote.h" |
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void sigverusage(void); |
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void |
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sigverusage(void) |
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{ |
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fprintf(stderr, "Arguments:\n"); |
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fprintf(stderr, "\t<AssertionFile>\n"); |
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} |
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void |
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keynote_sigver(int argc, char *argv[]) |
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{ |
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char *buf, **assertlist; |
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int fd, i, n, j; |
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struct stat sb; |
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if (argc != 2) |
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{ |
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sigverusage(); |
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exit(0); |
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} |
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/* Open and read assertion file */ |
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fd = open(argv[1], O_RDONLY, 0); |
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if (fd < 0) |
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{ |
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perror(argv[1]); |
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exit(1); |
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} |
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if (fstat(fd, &sb) < 0) |
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{ |
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perror("fstat()"); |
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exit(1); |
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} |
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if (sb.st_size == 0) /* Paranoid */ |
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{ |
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fprintf(stderr, "Illegal assertion-file size 0\n"); |
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exit(1); |
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} |
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buf = calloc(sb.st_size + 1, sizeof(char)); |
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if (buf == NULL) |
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{ |
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perror("calloc()"); |
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exit(1); |
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} |
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if (read(fd, buf, sb.st_size) < 0) |
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{ |
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perror("read()"); |
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exit(1); |
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} |
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close(fd); |
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assertlist = kn_read_asserts(buf, sb.st_size, &n); |
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if (assertlist == NULL) |
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{ |
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fprintf(stderr, "Out of memory while allocating memory for " |
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"assertions.\n"); |
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exit(1); |
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} |
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if (n == 0) |
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{ |
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fprintf(stderr, "No assertions found in %s.\n", argv[1]); |
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free(assertlist); |
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exit(1); |
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} |
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free(buf); |
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for (j = 0; j < n; j++) |
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{ |
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i = kn_verify_assertion(assertlist[j], strlen(assertlist[j])); |
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if (i == -1) |
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{ |
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switch (keynote_errno) |
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{ |
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case ERROR_MEMORY: |
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fprintf(stderr, |
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"Out of memory while parsing assertion %d.\n", j); |
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break; |
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case ERROR_SYNTAX: |
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fprintf(stderr, |
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"Syntax error while parsing assertion %d.\n", j); |
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break; |
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default: |
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fprintf(stderr, |
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"Unknown error while parsing assertion %d.\n", j); |
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} |
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} |
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else |
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{ |
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if (i == SIGRESULT_TRUE) |
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fprintf(stdout, "Signature on assertion %d verified.\n", j); |
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else |
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{ |
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if (keynote_errno != 0) |
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fprintf(stdout, |
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"Signature on assertion %d could not be verified " |
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"(keynote_errno = %d).\n", j, keynote_errno); |
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else |
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fprintf(stdout, |
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"Signature on assertion %d did not verify!\n", j); |
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} |
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} |
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free(assertlist[j]); |
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} |
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free(assertlist); |
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exit(0); |
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} |