mirror of https://github.com/dirtbags/fluffy.git
Reindent everything
This commit is contained in:
parent
31e9beb71a
commit
9bd3e1bd87
4
Makefile
4
Makefile
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@ -1,6 +1,6 @@
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CFLAGS = -Wall -Werror
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TARGETS = pmerge puniq p4split hd
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TARGETS += pyesc printfesc pcat
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TARGETS = pmerge puniq p4split pcat
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TARGETS += hd pyesc printfesc xor unhex
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all: $(TARGETS)
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147
hd.c
147
hd.c
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@ -2,96 +2,97 @@
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#include <stdint.h>
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#include <string.h>
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const char* charset[] = {
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"·", "☺", "☻", "♥", "♦", "♣", "♠", "•", "◘", "○", "◙", "♂", "♀", "♪", "♫", "☼",
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"►", "◄", "↕", "‼", "¶", "§", "▬", "↨", "↑", "↓", "→", "←", "∟", "↔", "▲", "▼",
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" ", "!", "\"", "#", "$", "%", "&", "'", "(", ")", "*", "+", ",", "-", ".", "/",
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"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", ":", ";", "<", "=", ">", "?",
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"@", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O",
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"P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "[", "\\", "]", "^", "_",
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"`", "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o",
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"p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "{", "|", "}", "~", "⌂",
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const char *charset[] = {
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"·", "☺", "☻", "♥", "♦", "♣", "♠", "•", "◘", "○", "◙", "♂", "♀", "♪", "♫", "☼",
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"►", "◄", "↕", "‼", "¶", "§", "▬", "↨", "↑", "↓", "→", "←", "∟", "↔", "▲", "▼",
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" ", "!", "\"", "#", "$", "%", "&", "'", "(", ")", "*", "+", ",", "-", ".", "/",
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"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", ":", ";", "<", "=", ">", "?",
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"@", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O",
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"P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "[", "\\", "]", "^", "_",
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"`", "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o",
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"p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "{", "|", "}", "~", "⌂",
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"Ç", "ü", "é", "â", "ä", "à", "å", "ç", "ê", "ë", "è", "ï", "î", "ì", "Ä", "Å",
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"É", "æ", "Æ", "ô", "ö", "ò", "û", "ù", "ÿ", "Ö", "Ü", "¢", "£", "¥", "€", "ƒ",
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"á", "í", "ó", "ú", "ñ", "Ñ", "ª", "º", "½", "⅓", "¼", "⅕", "⅙", "⅛", "«", "»",
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"░", "▒", "▓", "│", "┤", "╡", "╢", "╖", "╕", "╣", "║", "╗", "╝", "╜", "╛", "┐",
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"└", "┴", "┬", "├", "─", "┼", "╞", "╟", "╚", "╔", "╩", "╦", "╠", "═", "╬", "╧",
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"╨", "╤", "╥", "╙", "╘", "╒", "╓", "╫", "╪", "┘", "┌", "█", "▄", "▌", "▐", "▀",
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"α", "ß", "Γ", "π", "Σ", "σ", "µ", "τ", "Φ", "Θ", "Ω", "δ", "∞", "φ", "ε", "∩",
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"⁰", "¹", "²", "³", "⁴", "⁵", "⁶", "⁷", "⁸", "⁹", "ⁱ", "ⁿ", "⁽", "⁼", "⁾", "¤",
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"Ç", "ü", "é", "â", "ä", "à", "å", "ç", "ê", "ë", "è", "ï", "î", "ì", "Ä", "Å",
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"É", "æ", "Æ", "ô", "ö", "ò", "û", "ù", "ÿ", "Ö", "Ü", "¢", "£", "¥", "€", "ƒ",
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"á", "í", "ó", "ú", "ñ", "Ñ", "ª", "º", "½", "⅓", "¼", "⅕", "⅙", "⅛", "«", "»",
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"░", "▒", "▓", "│", "┤", "╡", "╢", "╖", "╕", "╣", "║", "╗", "╝", "╜", "╛", "┐",
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"└", "┴", "┬", "├", "─", "┼", "╞", "╟", "╚", "╔", "╩", "╦", "╠", "═", "╬", "╧",
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"╨", "╤", "╥", "╙", "╘", "╒", "╓", "╫", "╪", "┘", "┌", "█", "▄", "▌", "▐", "▀",
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"α", "ß", "Γ", "π", "Σ", "σ", "µ", "τ", "Φ", "Θ", "Ω", "δ", "∞", "φ", "ε", "∩",
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"⁰", "¹", "²", "³", "⁴", "⁵", "⁶", "⁷", "⁸", "⁹", "ⁱ", "ⁿ", "⁽", "⁼", "⁾", "¤",
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};
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int
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dump(FILE *f)
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dump(FILE * f)
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{
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uint64_t p = 0;
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uint8_t buf[32];
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int offset = 0;
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int skipping = 0;
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uint64_t p = 0;
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uint8_t buf[32];
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int offset = 0;
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int skipping = 0;
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while (!feof(f)) {
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uint8_t *bytes = buf + offset;
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size_t len;
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int i;
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while (!feof(f)) {
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uint8_t *bytes = buf + offset;
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size_t len;
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int i;
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offset = 16 - offset;
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offset = 16 - offset;
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len = fread(bytes, 1, 16, f);
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if (0 == len) break;
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len = fread(bytes, 1, 16, f);
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if (0 == len)
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break;
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if (p && (0 == memcmp(buf, buf + 16, 16))) {
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if (! skipping) {
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printf("*\n");
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skipping = 1;
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}
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p += 16;
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continue;
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} else {
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skipping = 0;
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}
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if (p && (0 == memcmp(buf, buf + 16, 16))) {
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if (!skipping) {
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printf("*\n");
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skipping = 1;
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}
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p += 16;
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continue;
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} else {
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skipping = 0;
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}
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printf("%08lx ", (long unsigned int)p);
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for (i = 0; i < 16; i += 1) {
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if (i < len) {
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printf("%02x ", bytes[i]);
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} else {
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printf(" ");
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}
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if (7 == i) {
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printf(" ");
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}
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}
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printf(" ┆");
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for (i = 0; i < len; i += 1) {
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printf("%s", charset[bytes[i]]);
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}
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if (-1 == printf("┆\n")) {
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perror("printf");
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return 1;
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}
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p += len;
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}
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printf("%08lx\n", (long unsigned int)p);
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printf("%08lx ", (long unsigned int) p);
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for (i = 0; i < 16; i += 1) {
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if (i < len) {
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printf("%02x ", bytes[i]);
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} else {
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printf(" ");
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}
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if (7 == i) {
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printf(" ");
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}
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}
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printf(" ┆");
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for (i = 0; i < len; i += 1) {
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printf("%s", charset[bytes[i]]);
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}
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if (-1 == printf("┆\n")) {
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perror("printf");
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return 1;
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}
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p += len;
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}
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printf("%08lx\n", (long unsigned int) p);
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return 0;
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return 0;
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}
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int
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main(int argc, char *argv[])
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{
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if (1 == argc) {
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dump(stdin);
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} else {
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FILE *f = fopen(argv[1], "rb");
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if (1 == argc) {
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dump(stdin);
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} else {
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FILE *f = fopen(argv[1], "rb");
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if (! f) {
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perror("open");
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return 1;
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}
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if (!f) {
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perror("open");
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return 1;
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}
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dump(f);
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}
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dump(f);
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}
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return 0;
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return 0;
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}
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185
p4split.c
185
p4split.c
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@ -5,7 +5,9 @@
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#include <strings.h>
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#include "pcap.h"
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/* Gaah so much crap */
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/*
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* Gaah so much crap
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*/
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#include <sys/socket.h>
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#include <arpa/inet.h>
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#include <netinet/ether.h>
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@ -16,119 +18,132 @@
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int
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usage(int ret)
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{
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fprintf(stderr, "Usage: p4split CIDR\n");
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fprintf(stderr, "\n");
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fprintf(stderr, "Splits pcap on stdin into up to 256 files, based on CIDR.\n");
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return ret;
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fprintf(stderr, "Usage: p4split CIDR\n");
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fprintf(stderr, "\n");
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fprintf(stderr, "Splits pcap on stdin into up to 256 files, based on CIDR.\n");
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return ret;
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}
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int
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parse_cidr(char *s, uint32_t *addr, uint8_t *bits)
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parse_cidr(char *s, uint32_t * addr, uint8_t * bits)
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{
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char *slash = index(s, '/');
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struct in_addr inp;
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char *slash = index(s, '/');
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struct in_addr inp;
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if (slash) {
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*slash = 0;
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*bits = atoi(slash + 1);
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} else {
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*bits = 0;
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}
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if (slash) {
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*slash = 0;
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*bits = atoi(slash + 1);
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} else {
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*bits = 0;
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}
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if (0 == inet_aton(s, &inp)) return -1;
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*addr = ntohl(inp.s_addr);
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if (0 == inet_aton(s, &inp))
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return -1;
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*addr = ntohl(inp.s_addr);
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return 0;
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return 0;
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}
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int
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main(int argc, char *argv[])
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{
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struct pcap_file p;
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struct pcap_file out[256];
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int ok = 0;
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uint32_t addr;
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uint32_t mask;
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uint8_t bits;
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uint8_t shr;
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int i;
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struct pcap_file p;
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struct pcap_file out[256];
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int ok = 0;
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uint32_t addr;
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uint32_t mask;
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uint8_t bits;
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uint8_t shr;
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int i;
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if (argc != 2) return usage(0);
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if (-1 == parse_cidr(argv[1], &addr, &bits)) return usage(0);
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if (bits > 24) return usage(0);
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if (bits % 8) {
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fprintf(stderr, "Warning: routing prefix is not a multiple of 8.\n");
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}
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if (argc != 2)
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return usage(0);
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if (-1 == parse_cidr(argv[1], &addr, &bits))
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return usage(0);
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if (bits > 24)
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return usage(0);
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if (bits % 8) {
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fprintf(stderr, "Warning: routing prefix is not a multiple of 8.\n");
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}
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mask = ~((1 << (32-bits)) - 1);
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addr &= mask;
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shr = (32-bits) - 8;
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mask = ~((1 << (32 - bits)) - 1);
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addr &= mask;
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shr = (32 - bits) - 8;
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for (i = 0; i < 256; i += 1) {
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out[i].f = NULL;
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}
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for (i = 0; i < 256; i += 1) {
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out[i].f = NULL;
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}
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if (-1 == pcap_open_in(&p, stdin)) return usage(0);
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if (-1 == pcap_open_in(&p, stdin))
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return usage(0);
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while (1) {
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struct pcap_pkthdr hdr;
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uint8_t octet;
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char frame[MAXFRAME];
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while (1) {
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struct pcap_pkthdr hdr;
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uint8_t octet;
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char frame[MAXFRAME];
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ok = 1;
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if (-1 == pcap_read_pkthdr(&p, &hdr)) break;
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if (1 != fread(frame, hdr.caplen, 1, p.f)) break;
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ok = 1;
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if (-1 == pcap_read_pkthdr(&p, &hdr))
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break;
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if (1 != fread(frame, hdr.caplen, 1, p.f))
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break;
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{
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struct ether_header *eh = (struct ether_header *)frame;
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struct iphdr *ih = (struct iphdr *)(frame + sizeof(struct ether_header));
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uint32_t a;
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{
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struct ether_header *eh = (struct ether_header *) frame;
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struct iphdr *ih = (struct iphdr *) (frame + sizeof(struct ether_header));
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uint32_t a;
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/* VLAN tag */
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if (ntohs(eh->ether_type) == 0x8100) {
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ih = (struct iphdr *)((char *)ih + 4);
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}
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/*
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* VLAN tag
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*/
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if (ntohs(eh->ether_type) == 0x8100) {
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ih = (struct iphdr *) ((char *) ih + 4);
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}
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a = ntohl(ih->saddr);
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if ((a & mask) != addr) {
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a = ntohl(ih->daddr);
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if ((a & mask) != addr) {
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fprintf(stderr, "Warning: dropping unmatched packet %08x -> %08x\n",
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ntohl(ih->saddr), ntohl(ih->daddr));
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continue;
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}
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}
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octet = (a & ~mask) >> shr;
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}
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a = ntohl(ih->saddr);
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if ((a & mask) != addr) {
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a = ntohl(ih->daddr);
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if ((a & mask) != addr) {
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fprintf(stderr, "Warning: dropping unmatched packet %08x -> %08x\n",
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ntohl(ih->saddr), ntohl(ih->daddr));
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continue;
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}
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}
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octet = (a & ~mask) >> shr;
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}
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ok = 0;
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if (! out[octet].f) {
|
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char fn[9];
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FILE *f;
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ok = 0;
|
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if (!out[octet].f) {
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char fn[9];
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FILE *f;
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sprintf(fn, "%d.pcap", octet);
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sprintf(fn, "%d.pcap", octet);
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if (NULL == (f = fopen(fn, "wb"))) break;
|
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if (-1 == pcap_open_out(&out[octet], f)) break;
|
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}
|
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if (NULL == (f = fopen(fn, "wb")))
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break;
|
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if (-1 == pcap_open_out(&out[octet], f))
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break;
|
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}
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if (-1 == pcap_write_pkthdr(&out[octet], &hdr)) break;
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if (1 != fwrite(frame, hdr.caplen, 1, out[octet].f)) break;
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}
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if (-1 == pcap_write_pkthdr(&out[octet], &hdr))
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break;
|
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if (1 != fwrite(frame, hdr.caplen, 1, out[octet].f))
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break;
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}
|
||||
|
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if (! ok) {
|
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perror("Error");
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||||
return 1;
|
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}
|
||||
if (!ok) {
|
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perror("Error");
|
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return 1;
|
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}
|
||||
|
||||
for (i = 0; i < 256; i += 1) {
|
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if (out[i].f) {
|
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pcap_close(&p);
|
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}
|
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}
|
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for (i = 0; i < 256; i += 1) {
|
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if (out[i].f) {
|
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pcap_close(&p);
|
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}
|
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}
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|
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return 0;
|
||||
return 0;
|
||||
}
|
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|
|
|
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101
pcap.c
101
pcap.c
|
|
@ -4,83 +4,90 @@
|
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#include "pcap.h"
|
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|
||||
int
|
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pcap_open_in(struct pcap_file *ctx, FILE *f)
|
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pcap_open_in(struct pcap_file *ctx, FILE * f)
|
||||
{
|
||||
struct pcap_file_header h;
|
||||
struct pcap_file_header h;
|
||||
|
||||
if (1 != fread(&h, sizeof(h), 1, f)) {
|
||||
h.magic = 0;
|
||||
}
|
||||
if (1 != fread(&h, sizeof(h), 1, f)) {
|
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h.magic = 0;
|
||||
}
|
||||
|
||||
if (MAGIC == h.magic) {
|
||||
ctx->swap = 0;
|
||||
} else if (bswap32(MAGIC) == h.magic) {
|
||||
ctx->swap = 1;
|
||||
} else {
|
||||
return -1;
|
||||
}
|
||||
if ((h.version_major != 2) || (h.version_minor != 4)) return -1;
|
||||
if (MAGIC == h.magic) {
|
||||
ctx->swap = 0;
|
||||
} else if (bswap32(MAGIC) == h.magic) {
|
||||
ctx->swap = 1;
|
||||
} else {
|
||||
return -1;
|
||||
}
|
||||
if ((h.version_major != 2) || (h.version_minor != 4))
|
||||
return -1;
|
||||
|
||||
if (ctx->swap) h.snaplen = bswap32(h.snaplen);
|
||||
if (h.snaplen > MAXFRAME) return -1;
|
||||
if (ctx->swap)
|
||||
h.snaplen = bswap32(h.snaplen);
|
||||
if (h.snaplen > MAXFRAME)
|
||||
return -1;
|
||||
|
||||
ctx->f = f;
|
||||
return 0;
|
||||
ctx->f = f;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
pcap_open_out(struct pcap_file *ctx, FILE *f)
|
||||
pcap_open_out(struct pcap_file *ctx, FILE * f)
|
||||
{
|
||||
struct pcap_file_header h = { MAGIC, 2, 4, 0, 0, MAXFRAME, 1 };
|
||||
struct pcap_file_header h = { MAGIC, 2, 4, 0, 0, MAXFRAME, 1 };
|
||||
|
||||
if (1 != fwrite(&h, sizeof(h), 1, f)) return -1;
|
||||
ctx->f = f;
|
||||
ctx->swap = 0;
|
||||
if (1 != fwrite(&h, sizeof(h), 1, f))
|
||||
return -1;
|
||||
ctx->f = f;
|
||||
ctx->swap = 0;
|
||||
|
||||
return 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
pcap_read_pkthdr(struct pcap_file *ctx, struct pcap_pkthdr *hdr)
|
||||
{
|
||||
if (1 != fread(hdr, sizeof(*hdr), 1, ctx->f)) {
|
||||
return -1;
|
||||
}
|
||||
if (1 != fread(hdr, sizeof(*hdr), 1, ctx->f)) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (ctx->swap) {
|
||||
hdr->ts.tv_sec = bswap32(hdr->ts.tv_sec);
|
||||
hdr->ts.tv_usec = bswap32(hdr->ts.tv_usec);
|
||||
hdr->caplen = bswap32(hdr->caplen);
|
||||
hdr->len = bswap32(hdr->len);
|
||||
}
|
||||
if (ctx->swap) {
|
||||
hdr->ts.tv_sec = bswap32(hdr->ts.tv_sec);
|
||||
hdr->ts.tv_usec = bswap32(hdr->ts.tv_usec);
|
||||
hdr->caplen = bswap32(hdr->caplen);
|
||||
hdr->len = bswap32(hdr->len);
|
||||
}
|
||||
|
||||
if (hdr->caplen > MAXFRAME) return -1;
|
||||
if (hdr->caplen > MAXFRAME)
|
||||
return -1;
|
||||
|
||||
return 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
pcap_write_pkthdr(struct pcap_file *ctx, struct pcap_pkthdr *hdr)
|
||||
{
|
||||
if (ctx->swap) {
|
||||
struct pcap_pkthdr ohdr;
|
||||
if (ctx->swap) {
|
||||
struct pcap_pkthdr ohdr;
|
||||
|
||||
memcpy(&ohdr, hdr, sizeof(ohdr));
|
||||
hdr->ts.tv_sec = bswap32(hdr->ts.tv_sec);
|
||||
hdr->ts.tv_usec = bswap32(hdr->ts.tv_usec);
|
||||
hdr->caplen = bswap32(hdr->caplen);
|
||||
hdr->len = bswap32(hdr->len);
|
||||
memcpy(&ohdr, hdr, sizeof(ohdr));
|
||||
hdr->ts.tv_sec = bswap32(hdr->ts.tv_sec);
|
||||
hdr->ts.tv_usec = bswap32(hdr->ts.tv_usec);
|
||||
hdr->caplen = bswap32(hdr->caplen);
|
||||
hdr->len = bswap32(hdr->len);
|
||||
|
||||
if (1 != fwrite(&ohdr, sizeof(ohdr), 1, ctx->f)) return -1;
|
||||
} else {
|
||||
if (1 != fwrite(hdr, sizeof(*hdr), 1, ctx->f)) return -1;
|
||||
}
|
||||
if (1 != fwrite(&ohdr, sizeof(ohdr), 1, ctx->f))
|
||||
return -1;
|
||||
} else {
|
||||
if (1 != fwrite(hdr, sizeof(*hdr), 1, ctx->f))
|
||||
return -1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
void
|
||||
pcap_close(struct pcap_file *ctx)
|
||||
{
|
||||
fclose(ctx->f);
|
||||
fclose(ctx->f);
|
||||
}
|
||||
|
|
|
|||
44
pcap.h
44
pcap.h
|
|
@ -8,35 +8,35 @@
|
|||
#define MAXFRAME 9000
|
||||
|
||||
struct pcap_file {
|
||||
FILE *f;
|
||||
int swap;
|
||||
FILE *f;
|
||||
int swap;
|
||||
};
|
||||
|
||||
struct pcap_file_header {
|
||||
uint32_t magic;
|
||||
uint16_t version_major;
|
||||
uint16_t version_minor;
|
||||
int32_t thiszone; /* gmt to local correction */
|
||||
uint32_t sigfigs; /* accuracy of timestamps */
|
||||
int32_t snaplen; /* max length saved portion of each pkt */
|
||||
int32_t linktype; /* data link type (LINKTYPE_*) */
|
||||
uint32_t magic;
|
||||
uint16_t version_major;
|
||||
uint16_t version_minor;
|
||||
int32_t thiszone; /* gmt to local correction */
|
||||
uint32_t sigfigs; /* accuracy of timestamps */
|
||||
int32_t snaplen; /* max length saved portion of each pkt */
|
||||
int32_t linktype; /* data link type (LINKTYPE_*) */
|
||||
};
|
||||
|
||||
struct pcap_pkthdr {
|
||||
struct pcap_timeval {
|
||||
uint32_t tv_sec;
|
||||
uint32_t tv_usec;
|
||||
} ts; /* time stamp */
|
||||
uint32_t caplen; /* length of portion present */
|
||||
uint32_t len; /* length this packet (off wire) */
|
||||
struct pcap_timeval {
|
||||
uint32_t tv_sec;
|
||||
uint32_t tv_usec;
|
||||
} ts; /* time stamp */
|
||||
uint32_t caplen; /* length of portion present */
|
||||
uint32_t len; /* length this packet (off wire) */
|
||||
};
|
||||
|
||||
#ifndef max
|
||||
# define max(a, b) ((a)>(b)?(a):(b))
|
||||
#define max(a, b) ((a)>(b)?(a):(b))
|
||||
#endif
|
||||
|
||||
#ifndef min
|
||||
# define min(a, b) ((a)<(b)?(a):(b))
|
||||
#define min(a, b) ((a)<(b)?(a):(b))
|
||||
#endif
|
||||
|
||||
#define bswap32(i) (((i & 0xff000000) >> 030) | \
|
||||
|
|
@ -47,7 +47,9 @@ struct pcap_pkthdr {
|
|||
((i & 0x00ff) << 010))
|
||||
|
||||
|
||||
/* Debugging help */
|
||||
/*
|
||||
* Debugging help
|
||||
*/
|
||||
#define DUMPf(fmt, args...) fprintf(stderr, "%s:%s:%d " fmt "\n", __FILE__, __FUNCTION__, __LINE__, ##args)
|
||||
#define DUMP() DUMPf("")
|
||||
#define DUMP_d(v) DUMPf("%s = %d", #v, v)
|
||||
|
|
@ -57,10 +59,10 @@ struct pcap_pkthdr {
|
|||
#define DUMP_c(v) DUMPf("%s = %c", #v, v)
|
||||
#define DUMP_p(v) DUMPf("%s = %p", #v, v)
|
||||
|
||||
int pcap_open_in(struct pcap_file *ctx, FILE *f);
|
||||
int pcap_open_out(struct pcap_file *ctx, FILE *f);
|
||||
int pcap_open_in(struct pcap_file *ctx, FILE * f);
|
||||
int pcap_open_out(struct pcap_file *ctx, FILE * f);
|
||||
int pcap_read_pkthdr(struct pcap_file *ctx, struct pcap_pkthdr *hdr);
|
||||
int pcap_write_pkthdr(struct pcap_file *ctx, struct pcap_pkthdr *hdr);
|
||||
void pcap_close(struct pcap_file *ctx);
|
||||
|
||||
#endif /* __PCAP_H__ */
|
||||
#endif /* __PCAP_H__ */
|
||||
|
|
|
|||
185
pcat.c
185
pcat.c
|
|
@ -15,11 +15,7 @@
|
|||
void
|
||||
ip4_addr(char *addr_s, uint32_t addr)
|
||||
{
|
||||
snprintf(addr_s, 16, "%u.%u.%u.%u",
|
||||
(addr >> 24) & 0xff,
|
||||
(addr >> 16) & 0xff,
|
||||
(addr >> 8) & 0xff,
|
||||
(addr >> 0) & 0xff);
|
||||
snprintf(addr_s, 16, "%u.%u.%u.%u", (addr >> 24) & 0xff, (addr >> 16) & 0xff, (addr >> 8) & 0xff, (addr >> 0) & 0xff);
|
||||
}
|
||||
|
||||
void
|
||||
|
|
@ -33,145 +29,132 @@ print_payload(struct stream *s)
|
|||
void
|
||||
process_tcp(struct stream *s, char *saddr_s, char *daddr_s)
|
||||
{
|
||||
uint16_t sport = read_uint16be(s);
|
||||
uint16_t dport = read_uint16be(s);
|
||||
uint32_t seq = read_uint32be(s);
|
||||
uint32_t ack = read_uint32be(s);
|
||||
uint8_t off = read_uint8(s);
|
||||
uint8_t hlen = (off >> 4) * 4;
|
||||
uint8_t flags = read_uint8(s);
|
||||
uint16_t window = read_uint16be(s);
|
||||
uint16_t chksum = read_uint16be(s);
|
||||
uint16_t urgent = read_uint16be(s);
|
||||
uint16_t sport = read_uint16be(s);
|
||||
uint16_t dport = read_uint16be(s);
|
||||
uint32_t seq = read_uint32be(s);
|
||||
uint32_t ack = read_uint32be(s);
|
||||
uint8_t off = read_uint8(s);
|
||||
uint8_t hlen = (off >> 4) * 4;
|
||||
uint8_t flags = read_uint8(s);
|
||||
uint16_t window = read_uint16be(s);
|
||||
uint16_t chksum = read_uint16be(s);
|
||||
uint16_t urgent = read_uint16be(s);
|
||||
|
||||
if (hlen < 20) {
|
||||
printf("!");
|
||||
}
|
||||
if (hlen < 20) {
|
||||
printf("!");
|
||||
}
|
||||
|
||||
printf("TCP4 %s:%u %s:%u ", saddr_s, sport, daddr_s, dport);
|
||||
printf("TCP4 %s:%u %s:%u ", saddr_s, sport, daddr_s, dport);
|
||||
|
||||
// shut the compiler up
|
||||
if (false &&
|
||||
urgent &&
|
||||
chksum &&
|
||||
window &&
|
||||
flags &&
|
||||
ack &&
|
||||
seq &&
|
||||
false);
|
||||
// shut the compiler up
|
||||
if (false && urgent && chksum && window && flags && ack && seq && false);
|
||||
}
|
||||
|
||||
void
|
||||
process_udp(struct stream *s, char *saddr_s, char *daddr_s)
|
||||
{
|
||||
uint16_t sport = read_uint16be(s);
|
||||
uint16_t dport = read_uint16be(s);
|
||||
uint16_t len = read_uint16be(s);
|
||||
uint16_t chksum = read_uint16be(s);
|
||||
uint16_t sport = read_uint16be(s);
|
||||
uint16_t dport = read_uint16be(s);
|
||||
uint16_t len = read_uint16be(s);
|
||||
uint16_t chksum = read_uint16be(s);
|
||||
|
||||
printf("UDP4 %s:%u %s:%u ", saddr_s, sport, daddr_s, dport);
|
||||
printf("UDP4 %s:%u %s:%u ", saddr_s, sport, daddr_s, dport);
|
||||
|
||||
// Now, do some shit!
|
||||
if (false &&
|
||||
len &&
|
||||
chksum &&
|
||||
false);
|
||||
// Now, do some shit!
|
||||
if (false && len && chksum && false);
|
||||
}
|
||||
|
||||
void
|
||||
process_ip4(struct stream *s)
|
||||
{
|
||||
uint8_t vhl = read_uint8(s);
|
||||
uint8_t ihl = (vhl & 0x0f) * 4;
|
||||
uint8_t tos = read_uint8(s);
|
||||
uint16_t length = read_uint16be(s);
|
||||
uint16_t id = read_uint16be(s);
|
||||
uint16_t off = read_uint16be(s);
|
||||
uint8_t ttl = read_uint8(s);
|
||||
uint8_t proto = read_uint8(s);
|
||||
uint16_t chksum = read_uint16be(s);
|
||||
uint32_t saddr = read_uint32be(s);
|
||||
uint32_t daddr = read_uint32be(s);
|
||||
uint8_t vhl = read_uint8(s);
|
||||
uint8_t ihl = (vhl & 0x0f) * 4;
|
||||
uint8_t tos = read_uint8(s);
|
||||
uint16_t length = read_uint16be(s);
|
||||
uint16_t id = read_uint16be(s);
|
||||
uint16_t off = read_uint16be(s);
|
||||
uint8_t ttl = read_uint8(s);
|
||||
uint8_t proto = read_uint8(s);
|
||||
uint16_t chksum = read_uint16be(s);
|
||||
uint32_t saddr = read_uint32be(s);
|
||||
uint32_t daddr = read_uint32be(s);
|
||||
|
||||
char saddr_s[20];
|
||||
char daddr_s[20];
|
||||
char saddr_s[20];
|
||||
char daddr_s[20];
|
||||
|
||||
ip4_addr(saddr_s, saddr);
|
||||
ip4_addr(daddr_s, daddr);
|
||||
ip4_addr(saddr_s, saddr);
|
||||
ip4_addr(daddr_s, daddr);
|
||||
|
||||
// Ignore options
|
||||
sskip(s, 20 - ihl);
|
||||
// Ignore options
|
||||
sskip(s, 20 - ihl);
|
||||
|
||||
// Force stream length to IP payload length
|
||||
s->len = length - ihl;
|
||||
// Force stream length to IP payload length
|
||||
s->len = length - ihl;
|
||||
|
||||
switch (proto) {
|
||||
case IPPROTO_TCP:
|
||||
process_tcp(s, saddr_s, daddr_s);
|
||||
break;
|
||||
case IPPROTO_UDP:
|
||||
process_udp(s, saddr_s, daddr_s);
|
||||
break;
|
||||
default:
|
||||
printf("P%d %s %s ", proto, saddr_s, daddr_s);
|
||||
break;
|
||||
}
|
||||
switch (proto) {
|
||||
case IPPROTO_TCP:
|
||||
process_tcp(s, saddr_s, daddr_s);
|
||||
break;
|
||||
case IPPROTO_UDP:
|
||||
process_udp(s, saddr_s, daddr_s);
|
||||
break;
|
||||
default:
|
||||
printf("P%d %s %s ", proto, saddr_s, daddr_s);
|
||||
break;
|
||||
}
|
||||
|
||||
print_payload(s);
|
||||
print_payload(s);
|
||||
|
||||
/* Placate compiler */
|
||||
if (false &&
|
||||
chksum &&
|
||||
id &&
|
||||
tos &&
|
||||
ttl &&
|
||||
off &&
|
||||
false);
|
||||
/*
|
||||
* Placate compiler
|
||||
*/
|
||||
if (false && chksum && id && tos && ttl && off && false);
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
print_ethernet(struct stream *s)
|
||||
{
|
||||
uint8_t saddr[6];
|
||||
uint8_t daddr[6];
|
||||
uint16_t ethertype;
|
||||
uint8_t saddr[6];
|
||||
uint8_t daddr[6];
|
||||
uint16_t ethertype;
|
||||
|
||||
sread(s, &saddr, sizeof(saddr));
|
||||
sread(s, &daddr, sizeof(daddr));
|
||||
ethertype = read_uint16be(s);
|
||||
sread(s, &saddr, sizeof(saddr));
|
||||
sread(s, &daddr, sizeof(daddr));
|
||||
ethertype = read_uint16be(s);
|
||||
|
||||
if (ethertype == 0x8100) {
|
||||
// VLAN
|
||||
read_uint16be(s);
|
||||
ethertype = read_uint16be(s);
|
||||
}
|
||||
if (ethertype == 0x8100) {
|
||||
// VLAN
|
||||
read_uint16be(s);
|
||||
ethertype = read_uint16be(s);
|
||||
}
|
||||
|
||||
switch (ethertype) {
|
||||
case 0x0800: // IPv4
|
||||
process_ip4(s);
|
||||
break;
|
||||
}
|
||||
switch (ethertype) {
|
||||
case 0x0800: // IPv4
|
||||
process_ip4(s);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
print_frame(struct pcap_pkthdr *hdr, char const *frame)
|
||||
{
|
||||
struct stream streambuf;
|
||||
struct stream *s = &streambuf;
|
||||
struct stream streambuf;
|
||||
struct stream *s = &streambuf;
|
||||
|
||||
sinit(s, frame, hdr->caplen);
|
||||
printf("%u,%u ", hdr->ts.tv_sec, hdr->ts.tv_usec);
|
||||
print_ethernet(s);
|
||||
printf("\n");
|
||||
sinit(s, frame, hdr->caplen);
|
||||
printf("%u,%u ", hdr->ts.tv_sec, hdr->ts.tv_usec);
|
||||
print_ethernet(s);
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
void
|
||||
pcat(FILE *f)
|
||||
pcat(FILE * f)
|
||||
{
|
||||
struct pcap_file p;
|
||||
|
||||
if (-1 == pcap_open_in(&p, f)) return;
|
||||
if (-1 == pcap_open_in(&p, f))
|
||||
return;
|
||||
|
||||
for (;;) {
|
||||
struct pcap_pkthdr hdr;
|
||||
|
|
|
|||
193
pmerge.c
193
pmerge.c
|
|
@ -4,124 +4,139 @@
|
|||
#include "pcap.h"
|
||||
|
||||
struct input_file {
|
||||
int active;
|
||||
struct pcap_file p;
|
||||
struct pcap_pkthdr next;
|
||||
int active;
|
||||
struct pcap_file p;
|
||||
struct pcap_pkthdr next;
|
||||
};
|
||||
|
||||
int
|
||||
usage(int ret)
|
||||
{
|
||||
fprintf(stderr, "Usage: pmerge FILE ...\n");
|
||||
fprintf(stderr, "\n");
|
||||
fprintf(stderr, "Merges pcap files, outputting time-ordered pcap stream\n");
|
||||
return ret;
|
||||
fprintf(stderr, "Usage: pmerge FILE ...\n");
|
||||
fprintf(stderr, "\n");
|
||||
fprintf(stderr, "Merges pcap files, outputting time-ordered pcap stream\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
int
|
||||
read_next(struct input_file *file)
|
||||
{
|
||||
if (! file->active) return -1;
|
||||
if (!file->active)
|
||||
return -1;
|
||||
|
||||
if (-1 == pcap_read_pkthdr(&file->p, &file->next)) {
|
||||
pcap_close(&file->p);
|
||||
file->active = 0;
|
||||
file->next.ts.tv_sec = 0xffffffff;
|
||||
file->next.ts.tv_usec = 0xffffffff;
|
||||
return -1;
|
||||
}
|
||||
if (-1 == pcap_read_pkthdr(&file->p, &file->next)) {
|
||||
pcap_close(&file->p);
|
||||
file->active = 0;
|
||||
file->next.ts.tv_sec = 0xffffffff;
|
||||
file->next.ts.tv_usec = 0xffffffff;
|
||||
return -1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
main(int argc, char *argv[])
|
||||
{
|
||||
struct input_file files[argc-1];
|
||||
int nfiles = 0;
|
||||
int nopen;
|
||||
int i;
|
||||
struct pcap_file out;
|
||||
struct input_file files[argc - 1];
|
||||
int nfiles = 0;
|
||||
int nopen;
|
||||
int i;
|
||||
struct pcap_file out;
|
||||
|
||||
if (1 == argc) return usage(0);
|
||||
if (1 == argc)
|
||||
return usage(0);
|
||||
|
||||
/* Open input files */
|
||||
for (i = 0; i < argc-1; i += 1) {
|
||||
char *fn = argv[i+1];
|
||||
struct input_file *cur = &files[nfiles];
|
||||
FILE *f;
|
||||
/*
|
||||
* Open input files
|
||||
*/
|
||||
for (i = 0; i < argc - 1; i += 1) {
|
||||
char *fn = argv[i + 1];
|
||||
struct input_file *cur = &files[nfiles];
|
||||
FILE *f;
|
||||
|
||||
if ('-' == fn[0]) return usage(0);
|
||||
if ('-' == fn[0])
|
||||
return usage(0);
|
||||
|
||||
f = fopen(fn, "rb");
|
||||
if (NULL == f) {
|
||||
perror(fn);
|
||||
return EX_NOINPUT;
|
||||
}
|
||||
f = fopen(fn, "rb");
|
||||
if (NULL == f) {
|
||||
perror(fn);
|
||||
return EX_NOINPUT;
|
||||
}
|
||||
|
||||
if (-1 == pcap_open_in(&cur->p, f)) {
|
||||
fprintf(stderr, "%s: unable to process\n", fn);
|
||||
return EX_IOERR;
|
||||
}
|
||||
cur->active = 1;
|
||||
if (-1 == pcap_open_in(&cur->p, f)) {
|
||||
fprintf(stderr, "%s: unable to process\n", fn);
|
||||
return EX_IOERR;
|
||||
}
|
||||
cur->active = 1;
|
||||
|
||||
if (0 == read_next(cur)) {
|
||||
nfiles += 1;
|
||||
}
|
||||
}
|
||||
if (0 == read_next(cur)) {
|
||||
nfiles += 1;
|
||||
}
|
||||
}
|
||||
|
||||
if (-1 == pcap_open_out(&out, stdout)) {
|
||||
perror("writing header");
|
||||
return EX_IOERR;
|
||||
}
|
||||
if (-1 == pcap_open_out(&out, stdout)) {
|
||||
perror("writing header");
|
||||
return EX_IOERR;
|
||||
}
|
||||
|
||||
nopen = nfiles;
|
||||
while (nopen) {
|
||||
struct input_file *cur = &files[0];
|
||||
char frame[MAXFRAME];
|
||||
size_t len;
|
||||
nopen = nfiles;
|
||||
while (nopen) {
|
||||
struct input_file *cur = &files[0];
|
||||
char frame[MAXFRAME];
|
||||
size_t len;
|
||||
|
||||
/* Find next oldest frame */
|
||||
for (i = 0; i < nfiles; i += 1) {
|
||||
if (files[i].active &&
|
||||
((files[i].next.ts.tv_sec < cur->next.ts.tv_sec) ||
|
||||
((files[i].next.ts.tv_sec == cur->next.ts.tv_sec) &&
|
||||
(files[i].next.ts.tv_usec < cur->next.ts.tv_usec)))) {
|
||||
cur = &files[i];
|
||||
}
|
||||
}
|
||||
/*
|
||||
* Find next oldest frame
|
||||
*/
|
||||
for (i = 0; i < nfiles; i += 1) {
|
||||
if (files[i].active &&
|
||||
((files[i].next.ts.tv_sec < cur->next.ts.tv_sec) ||
|
||||
((files[i].next.ts.tv_sec == cur->next.ts.tv_sec) &&
|
||||
(files[i].next.ts.tv_usec < cur->next.ts.tv_usec)))) {
|
||||
cur = &files[i];
|
||||
}
|
||||
}
|
||||
|
||||
/* Make sure it'll fit */
|
||||
if (cur->next.caplen > sizeof(frame)) {
|
||||
fprintf(stderr, "error: huge frame (size %u)\n", (unsigned int)len);
|
||||
return EX_SOFTWARE;
|
||||
}
|
||||
/*
|
||||
* Make sure it'll fit
|
||||
*/
|
||||
if (cur->next.caplen > sizeof(frame)) {
|
||||
fprintf(stderr, "error: huge frame (size %u)\n", (unsigned int) len);
|
||||
return EX_SOFTWARE;
|
||||
}
|
||||
|
||||
/* Read it */
|
||||
len = fread(frame, 1, cur->next.caplen, cur->p.f);
|
||||
if (len < cur->next.caplen) {
|
||||
/* Short read */
|
||||
cur->next.caplen = len;
|
||||
pcap_close(&cur->p);
|
||||
cur->active = 0;
|
||||
}
|
||||
/*
|
||||
* Read it
|
||||
*/
|
||||
len = fread(frame, 1, cur->next.caplen, cur->p.f);
|
||||
if (len < cur->next.caplen) {
|
||||
/*
|
||||
* Short read
|
||||
*/
|
||||
cur->next.caplen = len;
|
||||
pcap_close(&cur->p);
|
||||
cur->active = 0;
|
||||
}
|
||||
|
||||
/* Write header + frame */
|
||||
if (len) {
|
||||
if (1 != fwrite(&cur->next, sizeof(cur->next), 1, stdout)) {
|
||||
perror("error");
|
||||
return EX_IOERR;
|
||||
}
|
||||
if (len != fwrite(frame, 1, len, stdout)) {
|
||||
perror("error");
|
||||
return EX_IOERR;
|
||||
}
|
||||
}
|
||||
/*
|
||||
* Write header + frame
|
||||
*/
|
||||
if (len) {
|
||||
if (1 != fwrite(&cur->next, sizeof(cur->next), 1, stdout)) {
|
||||
perror("error");
|
||||
return EX_IOERR;
|
||||
}
|
||||
if (len != fwrite(frame, 1, len, stdout)) {
|
||||
perror("error");
|
||||
return EX_IOERR;
|
||||
}
|
||||
}
|
||||
|
||||
if (-1 == read_next(cur)) {
|
||||
nopen -= 1;
|
||||
}
|
||||
}
|
||||
if (-1 == read_next(cur)) {
|
||||
nopen -= 1;
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
36
printfesc.c
36
printfesc.c
|
|
@ -3,26 +3,26 @@
|
|||
int
|
||||
main(int argc, char *argv[])
|
||||
{
|
||||
printf("printf ");
|
||||
printf("printf ");
|
||||
|
||||
while (! feof(stdin)) {
|
||||
int c = getchar();
|
||||
while (!feof(stdin)) {
|
||||
int c = getchar();
|
||||
|
||||
switch (c) {
|
||||
case EOF:
|
||||
break;
|
||||
case '0' ... '9':
|
||||
case 'A' ... 'Z':
|
||||
case 'a' ... 'z':
|
||||
putchar(c);
|
||||
break;
|
||||
default:
|
||||
printf("\\\\%03o", c);
|
||||
break;
|
||||
}
|
||||
}
|
||||
switch (c) {
|
||||
case EOF:
|
||||
break;
|
||||
case '0' ... '9':
|
||||
case 'A' ... 'Z':
|
||||
case 'a' ... 'z':
|
||||
putchar(c);
|
||||
break;
|
||||
default:
|
||||
printf("\\\\%03o", c);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
putchar('\n');
|
||||
putchar('\n');
|
||||
|
||||
return 0;
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
95
puniq.c
95
puniq.c
|
|
@ -6,58 +6,63 @@
|
|||
int
|
||||
main(int argc, char *argv[])
|
||||
{
|
||||
int i;
|
||||
struct pcap_pkthdr hdr[2];
|
||||
char frame[2][MAXFRAME];
|
||||
int cur = 0;
|
||||
struct pcap_file out;
|
||||
int i;
|
||||
struct pcap_pkthdr hdr[2];
|
||||
char frame[2][MAXFRAME];
|
||||
int cur = 0;
|
||||
struct pcap_file out;
|
||||
|
||||
memset(&hdr, 0, sizeof(hdr));
|
||||
memset(frame, 0, 2 * MAXFRAME);
|
||||
memset(&hdr, 0, sizeof(hdr));
|
||||
memset(frame, 0, 2 * MAXFRAME);
|
||||
|
||||
if (-1 == pcap_open_out(&out, stdout)) {
|
||||
perror("writing header");
|
||||
return EX_IOERR;
|
||||
}
|
||||
if (-1 == pcap_open_out(&out, stdout)) {
|
||||
perror("writing header");
|
||||
return EX_IOERR;
|
||||
}
|
||||
|
||||
i = 1;
|
||||
do {
|
||||
char *fn = argv[i];
|
||||
FILE *f;
|
||||
struct pcap_file p;
|
||||
i = 1;
|
||||
do {
|
||||
char *fn = argv[i];
|
||||
FILE *f;
|
||||
struct pcap_file p;
|
||||
|
||||
if ((! fn) || (0 == strcmp("-", fn))) {
|
||||
f = stdin;
|
||||
} else {
|
||||
f = fopen(fn, "rb");
|
||||
if (NULL == f) {
|
||||
perror(fn);
|
||||
return EX_IOERR;
|
||||
}
|
||||
}
|
||||
if ((!fn) || (0 == strcmp("-", fn))) {
|
||||
f = stdin;
|
||||
} else {
|
||||
f = fopen(fn, "rb");
|
||||
if (NULL == f) {
|
||||
perror(fn);
|
||||
return EX_IOERR;
|
||||
}
|
||||
}
|
||||
|
||||
if (-1 == pcap_open_in(&p, f)) {
|
||||
fprintf(stderr, "%s: unable to process\n", fn);
|
||||
return EX_IOERR;
|
||||
}
|
||||
if (-1 == pcap_open_in(&p, f)) {
|
||||
fprintf(stderr, "%s: unable to process\n", fn);
|
||||
return EX_IOERR;
|
||||
}
|
||||
|
||||
while (1) {
|
||||
if (-1 == pcap_read_pkthdr(&p, &hdr[cur])) break;
|
||||
if (1 != fread(frame[cur], hdr[cur].caplen, 1, p.f)) break;
|
||||
while (1) {
|
||||
if (-1 == pcap_read_pkthdr(&p, &hdr[cur]))
|
||||
break;
|
||||
if (1 != fread(frame[cur], hdr[cur].caplen, 1, p.f))
|
||||
break;
|
||||
|
||||
if ((0 == memcmp(&hdr[0], &hdr[1], sizeof(hdr[0]))) &&
|
||||
(0 == memcmp(frame[0], frame[1], hdr[cur].caplen))) {
|
||||
/* Skip this duplicate */
|
||||
} else {
|
||||
if (-1 == pcap_write_pkthdr(&out, &hdr[cur])) break;
|
||||
if (1 != fwrite(frame[cur], hdr[cur].caplen, 1, out.f)) break;
|
||||
}
|
||||
cur = (1 - cur);
|
||||
}
|
||||
pcap_close(&p);
|
||||
if ((0 == memcmp(&hdr[0], &hdr[1], sizeof(hdr[0]))) && (0 == memcmp(frame[0], frame[1], hdr[cur].caplen))) {
|
||||
/*
|
||||
* Skip this duplicate
|
||||
*/
|
||||
} else {
|
||||
if (-1 == pcap_write_pkthdr(&out, &hdr[cur]))
|
||||
break;
|
||||
if (1 != fwrite(frame[cur], hdr[cur].caplen, 1, out.f))
|
||||
break;
|
||||
}
|
||||
cur = (1 - cur);
|
||||
}
|
||||
pcap_close(&p);
|
||||
|
||||
i += 1;
|
||||
} while (i < argc);
|
||||
i += 1;
|
||||
} while (i < argc);
|
||||
|
||||
return 0;
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
36
pyesc.c
36
pyesc.c
|
|
@ -3,24 +3,24 @@
|
|||
int
|
||||
main(int argc, char *argv[])
|
||||
{
|
||||
while (1) {
|
||||
int c = getchar();
|
||||
while (1) {
|
||||
int c = getchar();
|
||||
|
||||
switch (c) {
|
||||
case EOF:
|
||||
return 0;
|
||||
case 134:
|
||||
printf("\\\\");
|
||||
break;
|
||||
case 32 ... 91:
|
||||
case 93 ... 126:
|
||||
putchar(c);
|
||||
break;
|
||||
default:
|
||||
printf("\\x%02x", c);
|
||||
break;
|
||||
}
|
||||
}
|
||||
switch (c) {
|
||||
case EOF:
|
||||
return 0;
|
||||
case 134:
|
||||
printf("\\\\");
|
||||
break;
|
||||
case 32 ... 91:
|
||||
case 93 ... 126:
|
||||
putchar(c);
|
||||
break;
|
||||
default:
|
||||
printf("\\x%02x", c);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
105
stream.c
105
stream.c
|
|
@ -7,100 +7,87 @@
|
|||
void
|
||||
sinit(struct stream *s, char const *buf, size_t buflen)
|
||||
{
|
||||
s->buf = buf;
|
||||
s->len = buflen;
|
||||
s->buf = buf;
|
||||
s->len = buflen;
|
||||
}
|
||||
|
||||
bool
|
||||
sskip(struct stream *s, size_t count)
|
||||
{
|
||||
if (count > s->len) {
|
||||
s->len = 0;
|
||||
return false;
|
||||
}
|
||||
if (count > s->len) {
|
||||
s->len = 0;
|
||||
return false;
|
||||
}
|
||||
|
||||
s->buf += count;
|
||||
s->len -= count;
|
||||
return true;
|
||||
s->buf += count;
|
||||
s->len -= count;
|
||||
return true;
|
||||
}
|
||||
|
||||
bool
|
||||
sread(struct stream *s, void *buf, size_t count)
|
||||
sread(struct stream * s, void *buf, size_t count)
|
||||
{
|
||||
void const *d = s->buf;
|
||||
void const *d = s->buf;
|
||||
|
||||
if (! sskip(s, count)) {
|
||||
return false;
|
||||
}
|
||||
memcpy(buf, d, count);
|
||||
if (!sskip(s, count)) {
|
||||
return false;
|
||||
}
|
||||
memcpy(buf, d, count);
|
||||
|
||||
return true;
|
||||
return true;
|
||||
}
|
||||
|
||||
uint8_t
|
||||
read_uint8(struct stream *s)
|
||||
read_uint8(struct stream * s)
|
||||
{
|
||||
uint8_t *d = (uint8_t *)s->buf;
|
||||
uint8_t *d = (uint8_t *) s->buf;
|
||||
|
||||
if (! sskip(s, 1)) {
|
||||
return 0;
|
||||
}
|
||||
return d[0];
|
||||
if (!sskip(s, 1)) {
|
||||
return 0;
|
||||
}
|
||||
return d[0];
|
||||
}
|
||||
|
||||
uint16_t
|
||||
read_uint16be(struct stream *s)
|
||||
read_uint16be(struct stream * s)
|
||||
{
|
||||
uint8_t *d = (uint8_t *)s->buf;
|
||||
uint8_t *d = (uint8_t *) s->buf;
|
||||
|
||||
if (! sskip(s, 2)) {
|
||||
return 0;
|
||||
}
|
||||
return (
|
||||
(d[0] << 8) |
|
||||
(d[1] << 0));
|
||||
if (!sskip(s, 2)) {
|
||||
return 0;
|
||||
}
|
||||
return ((d[0] << 8) | (d[1] << 0));
|
||||
}
|
||||
|
||||
uint16_t
|
||||
read_uint16le(struct stream *s)
|
||||
read_uint16le(struct stream * s)
|
||||
{
|
||||
uint8_t *d = (uint8_t *)s->buf;
|
||||
uint8_t *d = (uint8_t *) s->buf;
|
||||
|
||||
if (! sskip(s, 2)) {
|
||||
return 0;
|
||||
}
|
||||
return (
|
||||
(d[0] << 0) |
|
||||
(d[1] << 8));
|
||||
if (!sskip(s, 2)) {
|
||||
return 0;
|
||||
}
|
||||
return ((d[0] << 0) | (d[1] << 8));
|
||||
}
|
||||
|
||||
uint32_t
|
||||
read_uint32be(struct stream *s)
|
||||
read_uint32be(struct stream * s)
|
||||
{
|
||||
uint8_t *d = (uint8_t *)s->buf;
|
||||
uint8_t *d = (uint8_t *) s->buf;
|
||||
|
||||
if (! sskip(s, 4)) {
|
||||
return 0;
|
||||
}
|
||||
return (
|
||||
(d[0] << 24) |
|
||||
(d[1] << 16) |
|
||||
(d[2] << 8) |
|
||||
(d[3] << 0));
|
||||
if (!sskip(s, 4)) {
|
||||
return 0;
|
||||
}
|
||||
return ((d[0] << 24) | (d[1] << 16) | (d[2] << 8) | (d[3] << 0));
|
||||
}
|
||||
|
||||
uint32_t
|
||||
read_uint32le(struct stream *s)
|
||||
read_uint32le(struct stream * s)
|
||||
{
|
||||
uint8_t *d = (uint8_t *)s->buf;
|
||||
uint8_t *d = (uint8_t *) s->buf;
|
||||
|
||||
if (! sskip(s, 4)) {
|
||||
return 0;
|
||||
}
|
||||
return (
|
||||
(d[0] << 0) |
|
||||
(d[1] << 8) |
|
||||
(d[2] << 16) |
|
||||
(d[3] << 24));
|
||||
if (!sskip(s, 4)) {
|
||||
return 0;
|
||||
}
|
||||
return ((d[0] << 0) | (d[1] << 8) | (d[2] << 16) | (d[3] << 24));
|
||||
}
|
||||
|
||||
|
|
|
|||
4
stream.h
4
stream.h
|
|
@ -6,8 +6,8 @@
|
|||
#include <stddef.h>
|
||||
|
||||
struct stream {
|
||||
char const *buf;
|
||||
size_t len;
|
||||
char const *buf;
|
||||
size_t len;
|
||||
};
|
||||
|
||||
void sinit(struct stream *s, char const *buf, size_t len);
|
||||
|
|
|
|||
75
unhex.c
75
unhex.c
|
|
@ -1,7 +1,6 @@
|
|||
/* Hex Decoder -- 2012 Zephyr <zephyr@dirtbags.net>
|
||||
*
|
||||
* This file is in the public domain. I make no promises
|
||||
* about the functionality of this program.
|
||||
/*
|
||||
* Hex Decoder -- 2012 Zephyr <zephyr@dirtbags.net> This file is in the public domain. I make no promises about the functionality
|
||||
* of this program.
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
|
|
@ -9,43 +8,43 @@
|
|||
int
|
||||
main(int argc, char *argv[])
|
||||
{
|
||||
unsigned char acc = 0;
|
||||
unsigned char nybble = 0;
|
||||
unsigned long int count = 0;
|
||||
unsigned char acc = 0;
|
||||
unsigned char nybble = 0;
|
||||
unsigned long int count = 0;
|
||||
|
||||
while (1) {
|
||||
int c = getchar();
|
||||
while (1) {
|
||||
int c = getchar();
|
||||
|
||||
count += 1;
|
||||
count += 1;
|
||||
|
||||
switch (c) {
|
||||
case EOF:
|
||||
return 0;
|
||||
case '0' ... '9':
|
||||
acc = (acc << 4) + c - '0';
|
||||
nybble += 1;
|
||||
break;
|
||||
case 'a' ... 'f':
|
||||
acc = (acc << 4) + c - 'a' + 10;
|
||||
nybble += 1;
|
||||
break;
|
||||
case 'A' ... 'F':
|
||||
acc = (acc << 4) + c - 'A' + 10;
|
||||
nybble += 1;
|
||||
break;
|
||||
default:
|
||||
if (nybble != 0) {
|
||||
fprintf(stderr, "Warning: non-hex character mid-octet at offset %lu\n", count);
|
||||
}
|
||||
break;
|
||||
}
|
||||
switch (c) {
|
||||
case EOF:
|
||||
return 0;
|
||||
case '0' ... '9':
|
||||
acc = (acc << 4) + c - '0';
|
||||
nybble += 1;
|
||||
break;
|
||||
case 'a' ... 'f':
|
||||
acc = (acc << 4) + c - 'a' + 10;
|
||||
nybble += 1;
|
||||
break;
|
||||
case 'A' ... 'F':
|
||||
acc = (acc << 4) + c - 'A' + 10;
|
||||
nybble += 1;
|
||||
break;
|
||||
default:
|
||||
if (nybble != 0) {
|
||||
fprintf(stderr, "Warning: non-hex character mid-octet at offset %lu\n", count);
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
if (nybble == 2) {
|
||||
putchar(acc);
|
||||
acc = 0;
|
||||
nybble = 0;
|
||||
}
|
||||
}
|
||||
if (nybble == 2) {
|
||||
putchar(acc);
|
||||
acc = 0;
|
||||
nybble = 0;
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
59
xor.c
59
xor.c
|
|
@ -1,7 +1,6 @@
|
|||
/* xor filter -- 2012 Zephyr <zephyr@dirtbags.net>
|
||||
*
|
||||
* This file is in the public domain. I make no promises
|
||||
* about the functionality of this program.
|
||||
/*
|
||||
* xor filter -- 2012 Zephyr <zephyr@dirtbags.net> This file is in the public domain. I make no promises about the functionality
|
||||
* of this program.
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
|
|
@ -11,38 +10,38 @@
|
|||
int
|
||||
main(int argc, char *argv[])
|
||||
{
|
||||
int start = 1;
|
||||
int base = 0;
|
||||
int arg;
|
||||
int start = 1;
|
||||
int base = 0;
|
||||
int arg;
|
||||
|
||||
if (argc < 2) {
|
||||
fprintf(stderr, "Usage: %s [-x] m1 [m2 ...]\n", argv[0]);
|
||||
return 1;
|
||||
}
|
||||
if (argc < 2) {
|
||||
fprintf(stderr, "Usage: %s [-x] m1 [m2 ...]\n", argv[0]);
|
||||
return 1;
|
||||
}
|
||||
|
||||
if (0 == strcmp(argv[1], "-x")) {
|
||||
base = 16;
|
||||
start += 1;
|
||||
}
|
||||
if (0 == strcmp(argv[1], "-x")) {
|
||||
base = 16;
|
||||
start += 1;
|
||||
}
|
||||
|
||||
arg = start;
|
||||
arg = start;
|
||||
|
||||
while (1) {
|
||||
int c = getchar();
|
||||
unsigned char mask;
|
||||
while (1) {
|
||||
int c = getchar();
|
||||
unsigned char mask;
|
||||
|
||||
if (! argv[arg]) {
|
||||
arg = start;
|
||||
}
|
||||
mask = strtol(argv[arg++], NULL, base);
|
||||
if (!argv[arg]) {
|
||||
arg = start;
|
||||
}
|
||||
mask = strtol(argv[arg++], NULL, base);
|
||||
|
||||
if (EOF == c) {
|
||||
break;
|
||||
}
|
||||
if (EOF == c) {
|
||||
break;
|
||||
}
|
||||
|
||||
c ^= mask;
|
||||
putchar(c);
|
||||
}
|
||||
c ^= mask;
|
||||
putchar(c);
|
||||
}
|
||||
|
||||
return 0;
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue