-/*
- * context_read.c -- find and read profile and context files
- *
- * $Id$
+/* context_read.c -- find and read profile and context files
*
* This code is Copyright (c) 2002, by the authors of nmh. See the
* COPYRIGHT file in the root directory of the nmh distribution for
* environment variable or by the profile.
*/
-#include <h/mh.h> /* mh internals */
-#include <errno.h> /* system call errors */
-#include <pwd.h> /* structure for getpwuid() results */
-
-extern int errno; /* system call error number */
+#include "h/mh.h"
+#include "read_yes_or_no_if_tty.h"
+#include "concat.h"
+#include "context_read.h"
+#include "context_find.h"
+#include "readconfig.h"
+#include "path.h"
+#include "error.h"
+#include "lock_file.h"
+#include "m_maildir.h"
+#include "makedir.h"
+#include <pwd.h>
+#include "h/utils.h"
void
context_read (void)
char *cp; /* miscellaneous pointer */
char *nd; /* nmh directory pointer */
struct stat st; /* stat() results */
- register struct passwd *pw; /* getpwuid() results */
- register FILE *ib; /* profile and context file pointer */
+ struct passwd *pw; /* getpwuid() results */
+ FILE *ib; /* profile and context file pointer */
+ int failed_to_lock = 0;
+
+ /*
+ * If this routine _is_ called again (despite the warnings in the
+ * comments above), return immediately.
+ */
+ if ( m_defs != 0 )
+ return;
/*
* Find user's home directory. Try the HOME environment variable first,
* the home directory field in the password file if that's not found.
*/
- if ((mypath = getenv("HOME")) == (char *)0) {
- if ((pw = getpwuid(getuid())) == (struct passwd *)0 || *pw->pw_dir == '\0')
- adios(NULL, "cannot determine your home directory");
- else
- mypath = pw->pw_dir;
+ if ((mypath = getenv("HOME")) == NULL) {
+ if ((pw = getpwuid(getuid())) == NULL || *pw->pw_dir == '\0')
+ die("cannot determine your home directory");
+ mypath = pw->pw_dir;
}
/*
if ((cp = getenv("MH")) && *cp != '\0') {
defpath = path(cp, TFILE);
+ /* defpath is an absolute path; make sure that always MH is, too. */
+ setenv("MH", defpath, 1);
if (stat(defpath, &st) != -1 && (st.st_mode & S_IFREG) == 0)
- adios((char *)0, "`%s' specified by your MH environment variable is not a normal file", cp);
+ die("`%s' specified by your MH environment variable is not a normal file", cp);
- if ((ib = fopen(defpath, "r")) == (FILE *)0)
- adios((char *)0, "unable to read the `%s' profile specified by your MH environment variable", defpath);
+ if ((ib = fopen(defpath, "r")) == NULL)
+ die("unable to read the `%s' profile specified by your MH environment variable", defpath);
}
else {
defpath = concat(mypath, "/", mh_profile, NULL);
- if ((ib = fopen(defpath, "r")) == (FILE *)0)
- adios((char *)0, "Doesn't look like nmh is installed. Run install-mh to do so.");
+ if ((ib = fopen(defpath, "r")) == NULL)
+ die("Doesn't look like nmh is installed. Run install-mh to do so.");
cp = mh_profile;
}
* Convert a relative path name to an absolute one rooted in the home directory.
*/
- if ((cp = context_find ("path")) == (char *)0)
- adios(NULL, "Your %s file does not contain a path entry.", defpath);
+ if ((cp = context_find ("path")) == NULL)
+ die("Your %s file does not contain a path entry.", defpath);
if (*cp == '\0')
- adios(NULL, "Your `%s' profile file does not contain a valid path entry.", defpath);
+ die("Your `%s' profile file does not contain a valid path entry.", defpath);
if (*cp != '/')
(void)snprintf (nd = buf, sizeof(buf), "%s/%s", mypath, cp);
cp = concat ("Your MH-directory \"", nd, "\" doesn't exist; Create it? ", NULL);
- if (!getanswer(cp))
- adios (NULL, "unable to access MH-directory \"%s\"", nd);
+ if (!read_yes_or_no_if_tty(cp))
+ die("unable to access MH-directory \"%s\"", nd);
free (cp);
if (!makedir (nd))
- adios (NULL, "unable to create", nd);
+ die("unable to create %s", nd);
}
else if ((st.st_mode & S_IFDIR) == 0)
- adios ((char *)0, "`%s' is not a directory", nd);
+ die("`%s' is not a directory", nd);
/*
* Open and read user's context file. The name of the context file comes from the
* profile unless overridden by the MHCONTEXT environment variable.
*/
- if ((cp = getenv ("MHCONTEXT")) == (char *)0 || *cp == '\0')
+ if ((cp = getenv ("MHCONTEXT")) == NULL || *cp == '\0')
cp = context;
- ctxpath = getcpy (m_maildir (cp));
-
- if ((ib = fopen (ctxpath, "r"))) {
- readconfig ((struct node **) 0, ib, cp, 1);
- fclose (ib);
+ /* context is NULL if context_foil() was called to disable use of context
+ * We also support users setting explicitly setting MHCONTEXT to /dev/null.
+ * (if this wasn't special-cased then the locking would be liable to fail)
+ */
+ if (!cp || (strcmp(cp,"/dev/null") == 0)) {
+ ctxpath = NULL;
+ return;
}
+
+ ctxpath = mh_xstrdup(m_maildir(cp));
- return;
+ if ((ib = lkfopendata (ctxpath, "r", &failed_to_lock))) {
+ readconfig(NULL, ib, cp, 1);
+ lkfclosedata (ib, ctxpath);
+ }
}
projects / nmh / blobdiff