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#ifndef lint |
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static const char RCSid[] = "$Id: getinfo.c,v 2.19 2019/07/16 17:07:35 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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|
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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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|
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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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|
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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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|
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|
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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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|
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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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FILE *fp; |
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int i; |
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|
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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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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 (getheader(stdin, (gethfunc *)fputs, stdout) < 0) |
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return 1; |
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printargs(argc-2, argv+2, 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 (getheader(stdin, (gethfunc *)fputs, stdout) < 0) |
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return 1; |
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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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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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return 1; |
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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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return 1; |
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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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return 1; |
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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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return 1; |
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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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|
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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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|
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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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|
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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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|
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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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} |
