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/* Copyright (c) 1988 Regents of the University of California */ |
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|
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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#endif |
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|
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/* |
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* header.c - routines for reading and writing information headers. |
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* |
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* 8/19/88 |
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*/ |
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|
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#include <stdio.h> |
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|
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|
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printargs(ac, av, fp) /* print arguments to a file */ |
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int ac; |
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char **av; |
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FILE *fp; |
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{ |
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while (ac-- > 0) { |
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fputs(*av++, fp); |
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putc(' ', fp); |
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} |
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putc('\n', fp); |
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} |
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|
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|
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#define MAXLINE 512 |
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|
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getheader(fp, f) /* get header from file */ |
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FILE *fp; |
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int (*f)(); |
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{ |
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char buf[MAXLINE]; |
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|
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for ( ; ; ) { |
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buf[MAXLINE-2] = '\n'; |
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if (fgets(buf, sizeof(buf), fp) == NULL) |
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return(-1); |
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if (buf[0] == '\n') |
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return(0); |
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if (buf[MAXLINE-2] != '\n') { |
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ungetc(buf[MAXLINE-2], fp); /* prevent false end */ |
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buf[MAXLINE-2] = '\0'; |
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} |
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if (f != NULL) |
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(*f)(buf); |
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} |
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} |
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|
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|
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static FILE *outfp; |
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|
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static |
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myputs(s) |
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char *s; |
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{ |
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fputs(s, outfp); |
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} |
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|
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|
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copyheader(fin, fout) /* copy file header */ |
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FILE *fin, *fout; |
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{ |
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outfp = fout; |
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return(getheader(fin, myputs)); |
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} |
