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#ifndef lint
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static const char RCSid[] = "$Id: getinfo.c,v 2.21 2019/07/24 17:27:54 greg Exp $";
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#endif
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/*
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* getinfo.c - program to read info. header from file.
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*
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* 1/3/86
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*/
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#include "rtio.h"
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#include "platform.h"
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#include "rtprocess.h"
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#include "resolu.h"
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#ifdef getc_unlocked /* avoid nasty file-locking overhead */
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#undef getc
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#undef getchar
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#undef putchar
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#define getc getc_unlocked
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#define getchar getchar_unlocked
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#define putchar putchar_unlocked
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#endif
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static gethfunc tabstr;
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static void getdim(FILE *fp);
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static void copycat(void);
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static int
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tabstr( /* put out line followed by tab */
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char *s,
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void *p
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)
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{
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while (*s) {
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putchar(*s);
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s++;
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}
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if (*--s == '\n')
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putchar('\t');
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return(0);
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}
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int
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main(
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int argc,
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char **argv
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)
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{
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int dim = 0;
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char fmt[MAXFMTLEN];
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FILE *fp;
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int i;
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if (argc > 1 && (argv[1][0] == '-') | (argv[1][0] == '+') &&
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argv[1][1] == 'd') {
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dim = 1 - 2*(argv[1][0] == '-');
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argc--; argv++;
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}
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#ifdef getc_unlocked /* avoid lock/unlock overhead */
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flockfile(stdin);
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#endif
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SET_FILE_BINARY(stdin);
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fmt[0] = '*'; fmt[1] = '\0';
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if (argc > 2 && !strcmp(argv[1], "-c")) {
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SET_FILE_BINARY(stdout);
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setvbuf(stdin, NULL, _IONBF, 2);
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if (checkheader(stdin, fmt, stdout) < 0) {
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fputs("Bad header!\n", stderr);
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return 1;
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}
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printargs(argc-2, argv+2, stdout);
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if (fmt[0] != '*') /* better be the same! */
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fputformat(fmt, stdout);
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fputc('\n', stdout);
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if (dim) { /* copy resolution string? */
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RESOLU rs;
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if (!fgetsresolu(&rs, stdin)) {
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fputs("No resolution string!\n", stderr);
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return 1;
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}
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if (dim > 0)
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fputsresolu(&rs, stdout);
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}
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fflush(stdout);
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execvp(argv[2], argv+2);
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perror(argv[2]);
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return 1;
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} else if (argc > 2 && !strcmp(argv[1], "-a")) {
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SET_FILE_BINARY(stdout);
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if (checkheader(stdin, fmt, stdout) < 0) {
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fputs("Bad header!\n", stderr);
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return 1;
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}
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for (i = 2; i < argc; i++) {
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int len = strlen(argv[i]);
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if (!len) continue;
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fputs(argv[i], stdout);
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if (argv[i][len-1] != '\n')
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fputc('\n', stdout);
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}
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if (fmt[0] != '*')
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fputformat(fmt, stdout);
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fputc('\n', stdout);
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copycat();
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return 0;
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} else if (argc == 2 && !strcmp(argv[1], "-")) {
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SET_FILE_BINARY(stdout);
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if (getheader(stdin, NULL, NULL) < 0) {
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fputs("Bad header!\n", stderr);
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return 1;
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}
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if (dim < 0) { /* skip resolution string? */
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RESOLU rs;
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if (!fgetsresolu(&rs, stdin)) {
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fputs("No resolution string!\n", stderr);
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return 1;
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}
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}
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copycat();
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return 0;
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}
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for (i = 1; i < argc; i++) {
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fputs(argv[i], stdout);
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if ((fp = fopen(argv[i], "r")) == NULL)
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fputs(": cannot open\n", stdout);
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else {
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if (dim < 0) { /* dimensions only */
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if (getheader(fp, NULL, NULL) < 0) {
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fputs("bad header!\n", stdout);
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continue;
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}
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fputs(": ", stdout);
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getdim(fp);
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} else {
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tabstr(":\n", NULL);
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if (getheader(fp, tabstr, NULL) < 0) {
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fputs(argv[i], stderr);
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fputs(": bad header!\n", stderr);
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return 1;
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}
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fputc('\n', stdout);
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if (dim > 0) {
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fputc('\t', stdout);
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getdim(fp);
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}
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}
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fclose(fp);
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}
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}
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if (argc == 1) {
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if (dim < 0) {
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if (getheader(stdin, NULL, NULL) < 0) {
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fputs("Bad header!\n", stderr);
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return 1;
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}
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getdim(stdin);
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} else {
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if (getheader(stdin, (gethfunc *)fputs, stdout) < 0) {
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fputs("Bad header!\n", stderr);
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return 1;
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}
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fputc('\n', stdout);
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if (dim > 0)
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getdim(stdin);
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}
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}
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return 0;
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}
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static void
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getdim( /* get dimensions from file */
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FILE *fp
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)
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{
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int j;
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int c;
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switch (c = getc(fp)) {
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case '+': /* picture */
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case '-':
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do
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putchar(c);
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while (c != '\n' && (c = getc(fp)) != EOF);
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break;
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case 1: /* octree */
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getc(fp);
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j = 0;
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while ((c = getc(fp)) != EOF)
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if (c == 0) {
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if (++j >= 4)
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break;
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putchar(' ');
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} else {
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putchar(c);
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}
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putchar('\n');
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break;
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default: /* ??? */
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fputs("unknown file type\n", stdout);
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break;
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}
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}
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static void
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copycat(void) /* copy input to output */
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{
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char buf[8192];
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int n;
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fflush(stdout);
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while ((n = fread(buf, 1, sizeof(buf), stdin)) > 0)
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if (writebuf(fileno(stdout), buf, n) != n)
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break;
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}
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