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/*
* man-config.c
*
* Read the man.conf file
*
* Input line types:
* MANBIN /usr/bin/man
* MANPATH /usr/X386/man [/var/catman/X386]
* MANPATH_MAP /usr/bin /usr/man
* FHS
* FSSTND
* NOAUTOPATH
* NROFF /usr/bin/groff -Tascii -mandoc
* BROWSER /usr/bin/lynx
* HTMLPAGER /usr/bin/lynx -dump
* .gz /usr/bin/gunzip -c
* # Comment
*
* Allow globbing in MANPATH elements.
* This is useful e.g. for having MANPATH /opt/ * /man
* (avoid comment within comment).
*/
#include "compat.h"
#include <stdio.h>
#ifdef STDC_HEADERS
# include <stdlib.h>
# include <string.h>
#endif
#include "defs.h"
#include "glob.h"
#include "man-config.h"
#include "man.h"
#include "paths.h"
#include "gripes.h"
#include "util.h"
#define BUFSIZE 4096
/* if we don't have the strrchr() function,
* then we must fall back to using the older rindex() function,
* but (apparently) this isn't always prototyped in string.h
*/
#ifndef rindex
/* i.e. NOT using strrchr()
*/
extern char *rindex (const char *, int);
#endif
#define whitespace(x) ((x) == ' ' || (x) == '\t')
/* directories listed in config file */
struct dirs cfdirlist; /* linked list, 1st entry unused */
static void
addval (char *buf) {
int i, len;
char *bp;
for (i = 0; i < sizeof(paths)/sizeof(paths[0]); i++) {
len = strlen (paths[i].name);
bp = buf + len;
if(!strncmp (buf, paths[i].name, len) && (!*bp || whitespace(*bp))) {
while(whitespace(*bp))
bp++;
paths[i].path = my_strdup(bp);
return;
}
}
gripe (UNRECOGNIZED_LINE, buf);
}
const char *
getval (const char *cmd) {
int i;
for (i = 0; i < sizeof(paths)/sizeof(paths[0]); i++)
if (!strcmp (cmd, paths[i].name))
return paths[i].path; /* never NULL */
gripe (GETVAL_ERROR, cmd);
return ""; /* impossible */
}
static void
adddir (const char *bp, int mandatory) {
int i;
struct dirs *dlp;
while (whitespace(*bp))
bp++;
if (*bp == 0)
gripe (PARSE_ERROR_IN_CONFIG);
dlp = &cfdirlist;
while (dlp->nxt)
dlp = dlp->nxt;
dlp->nxt = (struct dirs *) my_malloc (sizeof(struct dirs));
dlp = dlp->nxt;
dlp->mandatory = mandatory;
dlp->nxt = 0;
if (!mandatory) {
i = 0;
while (*bp && !whitespace(*bp)) {
if (i < MAXPATHLEN - 1)
dlp->bindir[i++] = *bp;
bp++;
}
dlp->bindir[i] = 0;
while (whitespace(*bp))
bp++;
} else {
dlp->bindir[0] = 0;
}
i = 0;
while (*bp && !whitespace(*bp)) {
if (i < MAXPATHLEN - 1)
dlp->mandir[i++] = *bp;
bp++;
}
dlp->mandir[i] = 0;
while (whitespace(*bp))
bp++;
i = 0;
while (*bp && !whitespace(*bp)) {
if (i < MAXPATHLEN - 1)
dlp->catdir[i++] = *bp;
bp++;
}
dlp->catdir[i] = 0;
if (debug) {
if (dlp->mandatory)
gripe (FOUND_MANDIR, dlp->mandir);
else
gripe (FOUND_MAP, dlp->bindir, dlp->mandir);
if (dlp->catdir[0])
gripe (FOUND_CATDIR, dlp->catdir);
}
}
static void
addglobdir (const char *bp, int mandatory) {
const char *dir;
while (whitespace(*bp))
bp++;
dir = bp;
if (index(dir, '*') || index(dir, '?') || index(dir, '[')) {
char **dp = glob_filename (dir);
if (dp && dp != (char **) -1) {
while (*dp)
adddir(*dp++, mandatory);
return;
}
}
adddir(dir, mandatory);
}
static struct xp {
char *extension; /* non-null, including initial . */
char *expander;
struct xp *nxt;
} uncompressors; /* linked list, 1st entry unused */
static void
addext (char *bp) {
char *p, csv;
struct xp *xpp;
xpp = &uncompressors;
while (xpp->nxt)
xpp = xpp->nxt;
xpp->nxt = (struct xp *) my_malloc (sizeof(struct xp));
xpp = xpp->nxt;
xpp->nxt = 0;
p = bp;
while(*p && !whitespace(*p))
p++;
csv = *p;
*p = 0;
xpp->extension = my_strdup(bp);
*p = csv;
while(whitespace(*p))
p++;
xpp->expander = my_strdup(p);
}
const char *
get_expander (const char *file) {
struct xp *xp;
char *extp = NULL;
if (dohp) {
/* Some HP systems have both man1 and man1.Z */
/* For man1.Z/file.1 let extp=".Z" */
/* For .1 return NULL */
int len = strlen (dohp);
char *dirname_end = rindex (file, '/');
if (dirname_end && !strncmp (dirname_end-len, dohp, len))
extp = dohp;
} else
extp = rindex (file, '.');
if (extp != NULL) {
if (uncompressors.nxt) {
for (xp = uncompressors.nxt; xp; xp = xp->nxt)
if (!strcmp (extp, xp->extension))
return (xp->expander);
} else if (!strcmp (extp, getval("COMPRESS_EXT"))) {
return getval("DECOMPRESS");
}
}
return NULL;
}
const char *configuration_file = "[no configuration file]";
char *default_config_files[] = {
CONFIG_FILE, /* compiled-in default */
"/etc/man.conf", "/etc/man.config",
"/usr/lib/man.conf", "/usr/lib/man.config",
"/usr/share/misc/man.conf", "/usr/share/misc/man.config"
};
#define SIZE(x) (sizeof(x)/sizeof((x)[0]))
void
read_config_file (const char *cf) {
char *bp;
char *p;
char buf[BUFSIZE];
FILE *config = NULL;
if (cf) {
/* User explicitly specified a config file */
if ((config = fopen (cf, "r")) == NULL) {
perror (cf);
gripe (CONFIG_OPEN_ERROR, cf);
return;
}
} else {
/* Try some things - unfortunately we cannot lookup
the config file to use in the config file :-). */
int i;
for(i=0; i < SIZE(default_config_files); i++) {
cf = default_config_files[i];
if ((config = fopen (cf, "r")) != NULL)
break;
}
if (config == NULL) {
gripe (CONFIG_OPEN_ERROR, CONFIG_FILE);
return;
}
}
if (debug)
fprintf(stderr, "Reading config file %s\n", cf);
configuration_file = cf;
while ((bp = fgets (buf, BUFSIZE, config)) != NULL) {
while (whitespace(*bp))
bp++;
for (p = bp; *p && *p != '#' && *p != '\n'; p++) ;
if (!*p) {
gripe (LINE_TOO_LONG);
gripe (BAD_CONFIG_FILE, cf);
return;
}
while (p > bp && whitespace(p[-1]))
p--;
*p = 0;
if (*bp == 0)
continue;
if (!strncmp ("MANPATH_MAP", bp, 11))
adddir (bp+11, 0);
else if (!strncmp ("MANPATH", bp, 7))
addglobdir (bp+7, 1);
else if(!strncmp ("MANDATORY_MANPATH", bp, 17))/* backwards compatible */
adddir (bp+17, 1);
else if (!strncmp ("FHS", bp, 3))
fhs = 1;
else if (!strncmp ("FSSTND", bp, 6))
fsstnd = 1;
else if (!strncmp ("NOAUTOPATH", bp, 10))
noautopath = 1;
else if (!strncmp ("NOCACHE", bp, 7))
nocache = 1;
else if (*bp == '.')
addext (bp);
else
addval (bp);
}
}