/*
- * 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 */
-
-extern int errno; /* system call error number */
+** 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 variables to absolute paths:
+** - "mypath": home directory (HOME)
+** - "mmhpath": mmh directory (MMH)
+** - "defpath": profile file (MMHP)
+** - "ctxpath": context file (MMHC)
+**
+** 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.
+**
+** You might need to adjust uip/mmh.sh if you make changes here.
+*/
+
+#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");
- 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 = 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;
-
- ctxpath = getcpy (m_maildir (cp));
-
- if ((ib = lkfopen (ctxpath, "r"))) {
- readconfig ((struct node **) 0, ib, cp, 1);
- lkfclose (ib);
- }
-
- return;
+ 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) {
+ 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"))) {
+ if (!(pw = getpwuid(getuid())) || !*pw->pw_dir) {
+ adios(NULL, "cannot determine your home directory");
+ }
+ mypath = pw->pw_dir;
+ }
+
+ /*
+ ** set mmhpath
+ */
+ if ((cp = getenv("MMH")) && *cp) {
+ mmhpath = getcpy(expanddir(cp)); /* rel to cwd */
+ if (stat(mmhpath, &st) != -1 && (st.st_mode & S_IFDIR) == 0) {
+ adios(NULL, "`%s' specified by your MMH environment variable is not a directory", cp);
+ }
+ } else {
+ mmhpath = concat(mypath, "/", mmhdir, NULL);
+ if (stat(mmhpath, &st) == -1 || (st.st_mode & S_IFDIR) == 0) {
+ adios(NULL, "Doesn't look like mmh is set up for your account. Run `install-mh' to do so.");
+ }
+ }
+
+ /*
+ ** Find and read user's profile. Check for the existence of
+ ** a non-empty MMHP environment variable first. Look for the
+ ** profile in the mmh directory otherwise.
+ */
+ if ((cp = getenv("MMHP")) && *cp) {
+ if (*cp == '/') {
+ defpath = getcpy(cp);
+ } else {
+ defpath = concat(mmhpath, "/", cp, NULL);
+ }
+ if (stat(defpath, &st) != -1 && (st.st_mode & S_IFREG) == 0) {
+ adios(NULL, "Your profile `%s', specified by the MMHP environment variable, is not a normal file", cp);
+ }
+ if ((ib = fopen(defpath, "r")) == (FILE *)0) {
+ adios(NULL, "Unable to read your profile `%s', specified by the MMHP environment variable", defpath);
+ }
+ } else {
+ defpath = concat(mmhpath, "/", profile, NULL);
+ if ((ib = fopen(defpath, "r")) == (FILE *)0) {
+ adios(NULL, "No profile found. Please create `%s' first.", defpath);
+ }
+ cp = profile;
+ }
+ readconfig(&m_defs, ib, cp, 0);
+ fclose(ib);
+
+ /*
+ ** Find the user's mail storage 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")) == NULL) {
+ adios(NULL, "Your profile `%s' does not contain the required path entry.", defpath);
+ }
+ if (!*cp) {
+ adios(NULL, "The Path entry of your profile `%s' must be non-empty.", defpath);
+ }
+ if (*cp == '/') {
+ nd = cp;
+ } else {
+ snprintf(nd = buf, sizeof buf, "%s/%s", mypath, cp);
+ }
+ if (stat(nd, &st) == -1) {
+ if (errno != ENOENT) {
+ adios(nd, "error opening");
+ }
+ cp = concat("Your mail storage directory `", nd, "' doesn't exist; Create it? ", NULL);
+ if (!getanswer(cp)) {
+ adios(NULL, "Unable to access the mail storage directory `%s'", nd);
+ }
+ free(cp);
+ if (!makedir(nd)) {
+ adios(nd, "unable to create");
+ }
+ } else if ((st.st_mode & S_IFDIR) == 0) {
+ adios(NULL, "Your mail storage `%s' is not a directory", nd);
+ }
+ /*
+ ** Create the default folder (inbox)
+ */
+ cp = toabsdir(defaultfolder);
+ if (stat(cp, &st) == -1) {
+ if (!makedir(cp)) {
+ adios(cp, "Unable to create the default folder");
+ }
+ } else if ((st.st_mode & S_IFDIR) == 0) {
+ adios(NULL, "The default folder `%s' is not a directory", cp);
+ }
+
+ /*
+ ** Open and read user's context file. The name of the context
+ ** file comes from the profile unless overridden by the MMHC
+ ** environment variable.
+ */
+ if (!(cp = getenv("MMHC")) || !*cp) {
+ if (!(cp = context_find("context")) || !*cp) {
+ cp = context;
+ }
+ }
+
+ /*
+ ** context is NULL if context_foil() was called to disable use
+ ** of context. We also support users setting explicitly setting
+ ** MMHC to /dev/null. (If this wasn't special-cased then the
+ ** locking would be liable to fail.)
+ */
+ if (!context || (strcmp(cp, "/dev/null") == 0)) {
+ ctxpath = NULL;
+ return;
+ }
+
+ if (*cp == '/') {
+ ctxpath = getcpy(cp);
+ } else {
+ ctxpath = concat(mmhpath, "/", cp, NULL);
+ }
+ if ((ib = lkfopen(ctxpath, "r"))) {
+ readconfig((struct node **) 0, ib, cp, 1);
+ lkfclose(ib, ctxpath);
+ }
+
+ /* Set editor */
+ if (!(cp = getenv("MMHEDITOR")) || !*cp) {
+ if (!(cp = context_find("editor")) || !*cp) {
+ if (!(cp = getenv("VISUAL")) || !*cp) {
+ if (!(cp = getenv("EDITOR")) || !*cp) {
+ cp = defaulteditor;
+ }
+ }
+ }
+ }
+ defaulteditor = cp;
+
+ /* Set pager */
+ if (!(cp = getenv("MMHPAGER")) || !*cp) {
+ if (!(cp = context_find("pager")) || !*cp) {
+ if (!(cp = getenv("PAGER")) || !*cp) {
+ cp = defaultpager;
+ }
+ }
+ }
+ defaultpager = cp;
}
projects / mmh / blobdiff