53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
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/*
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* Copyright (c) 1989, 1990 by the University of Washington
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*
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* For copying and distribution information, please see the file
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* <uw-copyright.h>.
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*/
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#include <uw-copyright.h>
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#include <stdio.h>
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#include <string.h>
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#include <pfs.h>
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#include <pmachine.h>
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/*
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* readheader will read the f until it comes across a line with
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* header whose name ends in h. It will then return the next token
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* on the same line.
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*
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* IMPORTANT: The returned value is static. It must be copied if it is
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* to be used after the next call to readheader.
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*
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* BUGS: The present implementation only looks for the first occurance of the
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* last character in h. This may cause problems if the character is not
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* unique. Ideally it should be something like a ":".
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*/
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char *readheader(f,h)
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FILE *f;
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char *h;
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{
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static char hv[MAX_VPATH];
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char temp[MAX_VPATH+40];
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char *p;
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int hl = strlen(h); /* Length of h */
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char *he = h + hl - 1; /* Last char in h */
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assert(P_IS_THIS_THREAD_MASTER());
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while(fgets(temp,sizeof(temp),f)) {
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/* Note, for now, we only check the first occurance of */
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/* the last character. It had better be a uniqe one */
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/* such as a ":". */
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if(p = strchr(temp + hl - 1, *he)) {
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if(strcncmp(p-hl+1,h,hl) == 0) {
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sscanf(++p,"%s",hv);
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return(hv);
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}
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}
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}
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return(NULL);
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}
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