Module Name:    src
Committed By:   gutteridge
Date:           Mon Mar  7 22:43:39 UTC 2022

Modified Files:
        src/usr.bin/man: man.c

Log Message:
man.c: fix -m option so it works as documented

Refactoring work in man.c r. 1.40 from twelve years ago introduced a
regression where input from the -m option was appended rather than
prepended to the search paths. Problem reported by C. Chapman on
netbsd-users.


To generate a diff of this commit:
cvs rdiff -u -r1.68 -r1.69 src/usr.bin/man/man.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/usr.bin/man/man.c
diff -u src/usr.bin/man/man.c:1.68 src/usr.bin/man/man.c:1.69
--- src/usr.bin/man/man.c:1.68	Mon Apr  6 19:53:22 2020
+++ src/usr.bin/man/man.c	Mon Mar  7 22:43:39 2022
@@ -1,4 +1,4 @@
-/*	$NetBSD: man.c,v 1.68 2020/04/06 19:53:22 maya Exp $	*/
+/*	$NetBSD: man.c,v 1.69 2022/03/07 22:43:39 gutteridge Exp $	*/
 
 /*
  * Copyright (c) 1987, 1993, 1994, 1995
@@ -40,7 +40,7 @@ __COPYRIGHT("@(#) Copyright (c) 1987, 19
 #if 0
 static char sccsid[] = "@(#)man.c	8.17 (Berkeley) 1/31/95";
 #else
-__RCSID("$NetBSD: man.c,v 1.68 2020/04/06 19:53:22 maya Exp $");
+__RCSID("$NetBSD: man.c,v 1.69 2022/03/07 22:43:39 gutteridge Exp $");
 #endif
 #endif /* not lint */
 
@@ -69,6 +69,11 @@ __RCSID("$NetBSD: man.c,v 1.68 2020/04/0
 #define MAN_DEBUG 0		/* debug path output */
 #endif
 
+enum inserttype {
+	INS_TAIL,
+	INS_HEAD
+} instype;
+
 /*
  * manstate: structure collecting the current global state so we can 
  * easily identify it and pass it to helper functions in one arg.
@@ -117,7 +122,7 @@ static void	 jump(char **, const char *,
 static int	 manual(char *, struct manstate *, glob_t *);
 static void	 onsig(int) __dead;
 static void	 usage(void) __dead;
-static void	 addpath(struct manstate *, const char *, size_t, const char *);
+static void	 addpath(struct manstate *, const char *, size_t, const char *, int);
 static const char *getclass(const char *);
 static void printmanpath(struct manstate *);
 
@@ -327,7 +332,7 @@ main(int argc, char **argv)
 			if (len < 1)
 				continue;
 			TAILQ_FOREACH(esubd, &m.subdirs->entrylist, q)
-				addpath(&m, p, len, esubd->s);
+				addpath(&m, p, len, esubd->s, INS_TAIL);
 		}
 
 	} else {
@@ -335,12 +340,12 @@ main(int argc, char **argv)
 		TAILQ_FOREACH(epath, &m.defaultpath->entrylist, q) {
 			/* handle trailing "/" magic here ... */
 		  	if (abs_section && epath->s[epath->len - 1] != '/') {
-				addpath(&m, "", 1, epath->s);
+				addpath(&m, "", 1, epath->s, INS_TAIL);
 				continue;
 			}
 
 			TAILQ_FOREACH(esubd, &m.subdirs->entrylist, q)
-				addpath(&m, epath->s, epath->len, esubd->s);
+				addpath(&m, epath->s, epath->len, esubd->s, INS_TAIL);
 		}
 
 	}
@@ -358,7 +363,7 @@ main(int argc, char **argv)
 			if (len < 1)
 				continue;
 			TAILQ_FOREACH(esubd, &m.subdirs->entrylist, q)
-				addpath(&m, p, len, esubd->s);
+				addpath(&m, p, len, esubd->s, INS_HEAD); /* Add to front */
 		}
 
 	}
@@ -1012,14 +1017,15 @@ getclass(const char *machine)
 }
 
 static void
-addpath(struct manstate *m, const char *dir, size_t len, const char *sub)
+addpath(struct manstate *m, const char *dir, size_t len, const char *sub,
+	int ishead)
 {
 	char buf[2 * MAXPATHLEN + 1];
 	(void)snprintf(buf, sizeof(buf), "%s%s%s{/%s,%s%s%s}",
 	     dir, (dir[len - 1] == '/') ? "" : "/", sub, m->machine,
 	     m->machclass ? "/" : "", m->machclass ? m->machclass : "",
 	     m->machclass ? "," : "");
-	if (addentry(m->mymanpath, buf, 0) < 0)
+	if (addentry(m->mymanpath, buf, ishead) < 0)
 		errx(EXIT_FAILURE, "malloc failed");
 }
 

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