43 lines
779 B
C
43 lines
779 B
C
/*
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* Replace %m by system error message.
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*
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* Author: Wietse Venema, Eindhoven University of Technology, The Netherlands.
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*/
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#ifndef lint
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static char sccsid[] = "@(#) percent_m.c 1.1 94/12/28 17:42:37";
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#endif
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#include <stdio.h>
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#include <errno.h>
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#include <string.h>
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#ifndef SYS_ERRLIST_DEFINED
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extern char *sys_errlist[];
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extern int sys_nerr;
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#endif
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#include "mystdarg.h"
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char *percent_m(obuf, ibuf)
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char *obuf;
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char *ibuf;
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{
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char *bp = obuf;
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char *cp = ibuf;
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while (*bp = *cp)
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if (*cp == '%' && cp[1] == 'm') {
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if (errno < sys_nerr && errno > 0) {
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strcpy(bp, sys_errlist[errno]);
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} else {
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sprintf(bp, "Unknown error %d", errno);
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}
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bp += strlen(bp);
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cp += 2;
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} else {
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bp++, cp++;
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}
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return (obuf);
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}
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