Viewing profile — textmode

correction: sed -n '/pattern/=' file|yy092|sed -nf/dev/stdin file

NB. Try using busybox awk instead of yy092 usage: sed -n '/pattern/='|yy092|sed -nf/dev/stdin file /* context split using sed */ int fileno (FILE *); int x,y,z; %option nounput noi…

Correction: /* remove HTTP headers from multiple gzip or single zip from stdin */ int fileno (FILE *); int setenv (const char *, const char *, int); #define jmp (yy_start) = 1 + 2 …

Usage example: Download NetBSD 1.0 in a single TCP connection. y="GET /pub/NetBSD-archive/NetBSD-1.0/source/src10/" z="Host: archive.netbsd.org" sed '$!s>.*>'"$y"'& HTTP/1.1[]'"$z"…

. /* remove HTTP headers from multiple gzip or single zip from stdin */ int fileno (FILE *); int setenv (const char *, const char *, int); #define jmp (yy_start) = 1 + 2 * int show…

Normally I use yy030 but I have been experimenting with this instead. Seems to be slightly faster and smaller than similar programs from html-xml-utils. https://www.w3.org/Tools/HT…

/* experimental usage: [host=example.com] yy044 [ar] */ int fileno (FILE *); int x,y,absolute,relative,omit,proto; int setenv (const char *, const char *, int); int fprintf(FILE *_…

/* remove HTTP headers from multiple gzip or single zip from stdin */ int fileno(FILE *); #define jmp (yy_start) = 1 + 2 * #define echo do{if(fwrite(yytext,(size_t)yyleng,1,yyout))…

/* chunked transfer decoding */ #define echo do{if(fwrite(yytext,(size_t)yyleng,1,yyout)){}}while(0) #define jmp (yy_start) = 1 + 2 * int fileno (FILE *); int ischunked,chunksize,c…

For example, Plan9 grep. Solution: #!/bin/sh # usage: $0 pattern

Below is a short script that downloads and makes a PDF from the image files. No browser required. The script uses a feature of HTTP/1.1 called pipelining; proponents of HTTP/2 and …

A simple demonstration of HTTP/1.1 pipelining with netcat. Retrieving 100s of small JPEG files with a single TCP connection. Here, 2 TCP connections for 141 files. Splitting the ou…

cat > 056.l /* JPEG file carver */ #define echo ECHO #define jmp BEGIN int fileno(FILE *); xa "\xFF\xD8" xb "\xFF\xD9" %s xa %option noyywrap nounput noinput %% {xa} echo;jmp xa; {…

https://news.ycombinator.com/item?id=27490265 The "gibberish" is GZIP compressed data. "yy054" is a simple filter I wrote to extract a GZIP file from stdin, i.e., discard leading a…

Note only extracts the first GZIP file. How to decompress multiple, consecutive GZIP files on stdin from the network (HTTP/1.1 pipelining) cat > 054.l; int fileno(FILE *); #define …

Need to get rid of the leading spaces on all lines except the "int fileno" line. Can also forgo the "here doc" and just save the lines between "flex" and "eof" to a file. Run flex …

The extra "a" is a typo but would have no effect. The "i" is also superfluous but harmless. Without more details on the "gibberish" it is difficult to guess what happened. The spac…

I make most HTTP requests using netcat or similar tcp clients so I write filters that read from stdin. Reading text files with the chunk sizes in hex interspersed is generally easy…

Corrections: /int main/{s/input();//;s/return 0/exit(0)/;};/int yywrap/s/return 0/exit(0)/;/%option/s/$/ noinput/

static void flush(void) { if (writeall(1, buf, buflen) == -1) _exit(errno); buflen = 0; } static void wrch(const char ch) { if (buflen >= sizeof buf) flush(); buf[buflen++] = ch; r…