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| [9] | 1 | /* Copyright (c) 1985 Ceriel J.H. Jacobs */
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| 2 |
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| 3 | # ifndef lint
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| 4 | static char rcsid[] = "$Header: /cvsup/minix/src/commands/yap/process.c,v 1.1.1.1 2005/04/21 14:55:41 beng Exp $";
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| 5 | # endif
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| 6 |
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| 7 | # define _PROCESS_
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| 8 |
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| 9 | # include "in_all.h"
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| 10 | # if USG_OPEN
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| 11 | # include <fcntl.h>
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| 12 | # endif
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| 13 | # if BSD4_2_OPEN
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| 14 | # include <sys/file.h>
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| 15 | # endif
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| 16 | # if POSIX_OPEN
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| 17 | # include <sys/types.h>
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| 18 | # include <fcntl.h>
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| 19 | # endif
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| 20 | # include <sys/types.h>
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| 21 | # include <sys/stat.h>
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| 22 | # include "process.h"
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| 23 | # include "commands.h"
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| 24 | # include "display.h"
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| 25 | # include "prompt.h"
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| 26 | # include "getline.h"
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| 27 | # include "main.h"
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| 28 | # include "options.h"
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| 29 | # include "output.h"
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| 30 |
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| 31 | static int nfiles; /* Number of filenames on command line */
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| 32 |
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| 33 | /*
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| 34 | * Visit a file, file name is "fn".
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| 35 | */
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| 36 |
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| 37 | VOID
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| 38 | visitfile(fn) char *fn; {
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| 39 | struct stat statbuf;
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| 40 |
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| 41 | if (stdf > 0) {
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| 42 | /*
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| 43 | * Close old input file
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| 44 | */
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| 45 | (VOID) close(stdf);
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| 46 | }
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| 47 | currentfile = fn;
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| 48 | # if USG_OPEN || BSD4_2_OPEN || POSIX_OPEN
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| 49 | if ((stdf = open(fn,O_RDONLY,0)) < 0) {
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| 50 | # else
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| 51 | if ((stdf = open(fn,0)) < 0) {
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| 52 | # endif
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| 53 | error(": could not open");
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| 54 | maxpos = 0;
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| 55 | }
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| 56 | else { /* Get size for percentage in prompt */
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| 57 | (VOID) fstat(stdf, &statbuf);
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| 58 | maxpos = statbuf.st_size;
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| 59 | }
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| 60 | do_clean();
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| 61 | d_clean();
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| 62 | }
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| 63 |
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| 64 | /*
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| 65 | * process the input files, one by one.
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| 66 | * If there is none, input is from a pipe.
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| 67 | */
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| 68 |
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| 69 | VOID
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| 70 | processfiles(n,argv) char ** argv; {
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| 71 |
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| 72 | static char *dummies[3];
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| 73 | long arg;
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| 74 |
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| 75 | if (!(nfiles = n)) {
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| 76 | /*
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| 77 | * Input from pipe
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| 78 | */
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| 79 | currentfile = "standard-input";
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| 80 | /*
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| 81 | * Take care that *(filenames - 1) and *(filenames + 1) are 0
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| 82 | */
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| 83 | filenames = &dummies[1];
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| 84 | d_clean();
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| 85 | do_clean();
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| 86 | }
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| 87 | else {
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| 88 | filenames = argv;
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| 89 | (VOID) nextfile(0);
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| 90 | }
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| 91 | *--argv = 0;
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| 92 | if (startcomm) {
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| 93 | n = getcomm(&arg);
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| 94 | if (commands[n].c_flags & NEEDS_SCREEN) {
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| 95 | redraw(0);
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| 96 | }
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| 97 | do_comm(n,arg);
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| 98 | startcomm = 0;
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| 99 | }
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| 100 | redraw(1);
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| 101 | if (setjmp(SetJmpBuf)) {
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| 102 | nflush();
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| 103 | redraw(1);
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| 104 | }
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| 105 | DoneSetJmp = 1;
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| 106 | for (;;) {
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| 107 | interrupt = 0;
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| 108 | n = getcomm(&arg);
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| 109 | do_comm(n, arg);
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| 110 | }
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| 111 | }
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| 112 |
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| 113 | /*
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| 114 | * Get the next file the user asks for.
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| 115 | */
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| 116 |
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| 117 | int
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| 118 | nextfile(n) {
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| 119 | register i;
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| 120 |
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| 121 | if ((i = filecount + n) >= nfiles || i < 0) {
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| 122 | return 1;
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| 123 | }
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| 124 | filecount = i;
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| 125 | visitfile(filenames[i]);
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| 126 | return 0;
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| 127 | }
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