/*
- * context_read.c -- find and read profile and context files
- *
- * $Id$
- *
- * This code is Copyright (c) 2002, by the authors of nmh. See the
- * COPYRIGHT file in the root directory of the nmh distribution for
- * complete copyright information.
- *
- * This function must be called early on in any nmh utility, and
- * may only be called once. It does the following:
- *
- * o Sets the global variable "mypath" to the home directory path.
- *
- * o Sets the global variable "defpath" to the absolute path of
- * the profile file.
- *
- * o Reads in the profile file. Bails out if it can't.
- *
- * o Makes sure that the mail directory exists, prompting for
- * creation if it doesn't.
- *
- * o Reads the context file either as set by the MHCONTEXT
- * 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 */
+** 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
+** complete copyright information.
+**
+** This function must be called early on in any nmh utility, and
+** may only be called once. It does the following:
+**
+** o Sets the global variable "mypath" to the home directory path.
+**
+** o Sets the global variable "defpath" to the absolute path of
+** the profile file.
+**
+** o Reads in the profile file. Bails out if it can't.
+**
+** o Makes sure that the mail directory exists, prompting for
+** creation if it doesn't.
+**
+** o Reads the context file either as set by the MHCONTEXT
+** 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 */
void
-context_read (void)
+context_read(void)
{
- char buf[BUFSIZ]; /* path name buffer */
- 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 */
-
- /*
- * 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");
+ char buf[BUFSIZ]; /* path name buffer */
+ 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 */
+
+ /*
+ ** If this routine _is_ called again (despite the wanings 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;
+ }
+
+ /*
+ ** Find and read user's profile. Check for the existence of
+ ** an MH environment variable first with non-empty contents.
+ ** Convert any relative path name found there to an absolute one.
+ ** Look for the profile in the user's home directory if the MH
+ ** environment variable isn't set.
+ */
+
+ if ((cp = getenv("MH")) && *cp != '\0') {
+ defpath = getcpy(expanddir(cp));
+
+ 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);
+
+ if ((ib = fopen(defpath, "r")) == (FILE *)0)
+ adios((char *)0, "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.");
+
+ cp = mh_profile;
+ }
+
+ readconfig(&m_defs, ib, cp, 0);
+ fclose(ib);
+
+ /*
+ ** Find the user's nmh directory, which is specified by the "path"
+ ** profile component. 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 == '\0')
+ adios(NULL, "Your `%s' profile file does not contain a valid path entry.", defpath);
+
+ if (*cp != '/')
+ snprintf(nd = buf, sizeof(buf), "%s/%s", mypath, cp);
else
- mypath = pw->pw_dir;
- }
+ nd = cp;
+
+ if (stat(nd, &st) == -1) {
+ if (errno != ENOENT)
+ adios(nd, "error opening");
+ cp = concat("Your MH-directory \"", nd, "\" doesn't exist; Create it? ", NULL);
+ if (!getanswer(cp))
+ adios(NULL, "unable to access MH-directory \"%s\"",
+ nd);
+ free(cp);
+ if (!makedir(nd))
+ adios(NULL, "unable to create %s", nd);
+ } else if ((st.st_mode & S_IFDIR) == 0)
+ adios((char *)0, "`%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')
+ cp = context;
+
+ /*
+ ** 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 specialcased then the
+ ** locking would be liable to fail)
+ */
+ if (!cp || (strcmp(cp,"/dev/null") == 0)) {
+ ctxpath = NULL;
+ return;
+ }
+
+ ctxpath = getcpy(toabsdir(cp));
+
+ if ((ib = lkfopen(ctxpath, "r"))) {
+ readconfig((struct node **) 0, ib, cp, 1);
+ lkfclose(ib, ctxpath);
+ }
- /*
- * Find and read user's profile. Check for the existence of an MH environment
- * variable first with non-empty contents. Convert any relative path name
- * found there to an absolute one. Look for the profile in the user's home
- * directory if the MH environment variable isn't set.
- */
-
- if ((cp = getenv("MH")) && *cp != '\0') {
- defpath = path(cp, TFILE);
-
- 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);
-
- if ((ib = fopen(defpath, "r")) == (FILE *)0)
- adios((char *)0, "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.");
-
- cp = mh_profile;
- }
-
- readconfig (&m_defs, ib, cp, 0);
- fclose (ib);
-
- /*
- * Find the user's nmh directory, which is specified by the "path" profile component.
- * 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 == '\0')
- adios(NULL, "Your `%s' profile file does not contain a valid path entry.", defpath);
-
- if (*cp != '/')
- (void)snprintf (nd = buf, sizeof(buf), "%s/%s", mypath, cp);
- else
- nd = cp;
-
- if (stat(nd, &st) == -1) {
- if (errno != ENOENT)
- adios (nd, "error opening");
-
- cp = concat ("Your MH-directory \"", nd, "\" doesn't exist; Create it? ", NULL);
-
- if (!getanswer(cp))
- adios (NULL, "unable to access MH-directory \"%s\"", nd);
-
- free (cp);
-
- if (!makedir (nd))
- adios (NULL, "unable to create", nd);
- }
-
- else if ((st.st_mode & S_IFDIR) == 0)
- adios ((char *)0, "`%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')
- cp = context;
-
- /* 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 specialcased then the locking would be liable to fail)
- */
- if (!cp || (strcmp(cp,"/dev/null") == 0)) {
- ctxpath = NULL;
return;
- }
-
- ctxpath = getcpy (m_maildir (cp));
-
- if ((ib = lkfopen (ctxpath, "r"))) {
- readconfig ((struct node **) 0, ib, cp, 1);
- lkfclose (ib, ctxpath);
- }
-
- return;
}