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#ifndef lint
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static const char RCSid[] = "$Id: fixargv0.c,v 2.10 2025/06/03 21:31:51 greg Exp $";
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#endif
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/*
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* Fix argv[0] and assign global progname variable
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*
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* External symbols declared in paths.h
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*/
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#include "rtio.h"
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#include "paths.h"
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#include <ctype.h>
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char *progname = NULL; /* global argv[0] */
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char *
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fixargv0(char *av0) /* extract command name from full path */
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{
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char *cp = av0;
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while (*cp) cp++; /* start from end */
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while (cp-- > av0)
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switch (*cp) {
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CASEDIRSEP: /* remove directory */
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av0 = cp+1;
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break;
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#if defined(_WIN32) || defined(_WIN64) /* only do for Windows: */
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case '.': /* remove extension */
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*cp = '\0';
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continue;
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default: /* convert to lower case */
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*cp = tolower(*cp);
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continue;
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#endif
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}
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return(progname = av0);
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}
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void
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printargs( /* print command 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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{
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if (ac <= 0) return;
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if (progname == NULL)
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fixargv0(av[0]);
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if (progname >= av[0] && progname - av[0] < strlen(av[0]))
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fputword(progname, fp);
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else
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fputword(av[0], fp);
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while (--ac > 0) {
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fputc(' ', fp);
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fputword(*++av, fp);
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}
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fputc('\n', fp);
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}
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