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JX(9.1) JX(9.1) NAME jx - 5620 execution and stdio interpreter SYNOPSIS jx file [ argument ... ] DESCRIPTION Jx downloads the program in file to the terminal or layer on its con- trolling tty and runs it there, simulating standard I/O functions of stdio(3). Jx works either stand-alone or in a layer. The stdout and stderr streams, if directed to the controlling terminal, will be squirreled away during execution and copied to the terminal af- ter the down-loaded program exits. Programs to be run by jx should include <jerqio.h> and call exit() upon termination in order to restart the default terminal program. Programs to be run stand-alone should be compiled with the -J option of 3cc(9.1). No special options are required for running in a layer. Stdio(3) functions available under jx are getc putc fopen popen printf fread getchar putchar freopen pclose sprintf fwrite fgets puts fclose fprintf fputs access fflush Unlike in stdio(3), getc and putc are functions, not macros. Printf has only %d, %s, %c, %o, and %x. %u prints an unsigned decimal number. %D prints an unsigned long decimal number. Since jx uses sendchar, sendnchars, and rcvchar, jx programs should avoid these, and use only the standard I/O routines. FILES standard I/O interpreter saved standard output saved standard diagnostic output SEE ALSO request(9.2), stdio(3) BUGS Keyboard standard input doesn't work; use kbdchar; see request(9.2). Stand-alone programs do not receive arguments. JX(9.1)