X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/ed85e20e4d6a27d5405f37366dd34b64c10a9211..0845bc813c1cc48b18cdefff0b387c110647463c:/print-esp.c

diff --git a/print-esp.c b/print-esp.c
index 8e267d45..fe494a39 100644
--- a/print-esp.c
+++ b/print-esp.c
@@ -21,7 +21,6 @@
  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  */
 
-#define NETDISSECT_REWORKED
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
@@ -48,9 +47,11 @@
 #include "ip6.h"
 #endif
 
-#include "interface.h"
+#include "netdissect.h"
 #include "extract.h"
 
+#include "ascii_strcasecmp.h"
+
 /*
  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
  * All rights reserved.
@@ -126,10 +127,10 @@ USES_APPLE_DEPRECATED_API
 int esp_print_decrypt_buffer_by_ikev2(netdissect_options *ndo,
 				      int initiator,
 				      u_char spii[8], u_char spir[8],
-				      u_char *buf, u_char *end)
+				      const u_char *buf, const u_char *end)
 {
 	struct sa_list *sa;
-	u_char *iv;
+	const u_char *iv;
 	int len;
 	EVP_CIPHER_CTX ctx;
 
@@ -332,8 +333,8 @@ espprint_decode_authalgo(netdissect_options *ndo,
 	}
 	*colon = '\0';
 
-	if(strcasecmp(colon,"sha1") == 0 ||
-	   strcasecmp(colon,"md5") == 0) {
+	if(ascii_strcasecmp(colon,"sha1") == 0 ||
+	   ascii_strcasecmp(colon,"md5") == 0) {
 		sa->authlen = 12;
 	}
 	return 1;
@@ -427,11 +428,11 @@ static void esp_print_decode_onesecret(netdissect_options *ndo, char *line,
 	} else
 		decode = line;
 
-	if (spikey && strcasecmp(spikey, "file") == 0) {
+	if (spikey && ascii_strcasecmp(spikey, "file") == 0) {
 		/* open file and read it */
 		FILE *secretfile;
 		char  fileline[1024];
-		int   lineno=0;
+		int   subfile_lineno=0;
 		char  *nl;
 		char *filename = line;
 
@@ -442,7 +443,7 @@ static void esp_print_decode_onesecret(netdissect_options *ndo, char *line,
 		}
 
 		while (fgets(fileline, sizeof(fileline)-1, secretfile) != NULL) {
-			lineno++;
+			subfile_lineno++;
 			/* remove newline from the line */
 			nl = strchr(fileline, '\n');
 			if (nl)
@@ -450,14 +451,14 @@ static void esp_print_decode_onesecret(netdissect_options *ndo, char *line,
 			if (fileline[0] == '#') continue;
 			if (fileline[0] == '\0') continue;
 
-			esp_print_decode_onesecret(ndo, fileline, filename, lineno);
+			esp_print_decode_onesecret(ndo, fileline, filename, subfile_lineno);
 		}
 		fclose(secretfile);
 
 		return;
 	}
 
-	if (spikey && strcasecmp(spikey, "ikev2") == 0) {
+	if (spikey && ascii_strcasecmp(spikey, "ikev2") == 0) {
 		esp_print_decode_ikeline(ndo, line, file, lineno);
 		return;
 	}
@@ -564,21 +565,21 @@ esp_print(netdissect_options *ndo,
 	register const struct newesp *esp;
 	register const u_char *ep;
 #ifdef HAVE_LIBCRYPTO
-	struct ip *ip;
+	const struct ip *ip;
 	struct sa_list *sa = NULL;
 #ifdef INET6
-	struct ip6_hdr *ip6 = NULL;
+	const struct ip6_hdr *ip6 = NULL;
 #endif
 	int advance;
 	int len;
 	u_char *secret;
 	int ivlen = 0;
-	u_char *ivoff;
-	u_char *p;
+	const u_char *ivoff;
+	const u_char *p;
 	EVP_CIPHER_CTX ctx;
 #endif
 
-	esp = (struct newesp *)bp;
+	esp = (const struct newesp *)bp;
 
 #ifdef HAVE_LIBCRYPTO
 	secret = NULL;
@@ -593,7 +594,7 @@ esp_print(netdissect_options *ndo,
 	/* 'ep' points to the end of available data. */
 	ep = ndo->ndo_snapend;
 
-	if ((u_char *)(esp + 1) >= ep) {
+	if ((const u_char *)(esp + 1) >= ep) {
 		ND_PRINT((ndo, "[|ESP]"));
 		goto fail;
 	}
@@ -615,11 +616,11 @@ esp_print(netdissect_options *ndo,
 	if (ndo->ndo_sa_list_head == NULL)
 		goto fail;
 
-	ip = (struct ip *)bp2;
+	ip = (const struct ip *)bp2;
 	switch (IP_V(ip)) {
 #ifdef INET6
 	case 6:
-		ip6 = (struct ip6_hdr *)bp2;
+		ip6 = (const struct ip6_hdr *)bp2;
 		/* we do not attempt to decrypt jumbograms */
 		if (!EXTRACT_16BITS(&ip6->ip6_plen))
 			goto fail;
@@ -675,7 +676,7 @@ esp_print(netdissect_options *ndo,
 		ep = bp2 + len;
 	}
 
-	ivoff = (u_char *)(esp + 1) + 0;
+	ivoff = (const u_char *)(esp + 1) + 0;
 	ivlen = sa->ivlen;
 	secret = sa->secret;
 	ep = ep - sa->authlen;
@@ -689,7 +690,7 @@ esp_print(netdissect_options *ndo,
 		EVP_CipherInit(&ctx, NULL, NULL, p, 0);
 		EVP_Cipher(&ctx, p + ivlen, p + ivlen, ep - (p + ivlen));
 		EVP_CIPHER_CTX_cleanup(&ctx);
-		advance = ivoff - (u_char *)esp + ivlen;
+		advance = ivoff - (const u_char *)esp + ivlen;
 	} else
 		advance = sizeof(struct newesp);