X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/ff2b7b715934b346b6121a2a434db116d3203663..418ee17e8bd250785855ca3f3f1ff0e19331d498:/sbr/mts.c diff --git a/sbr/mts.c b/sbr/mts.c index a167b09e..5f4e3676 100644 --- a/sbr/mts.c +++ b/sbr/mts.c @@ -5,7 +5,9 @@ * complete copyright information. */ -#include "h/mh.h" /* for snprintf() */ +#include "h/mh.h" +#include "escape_addresses.h" +#include "context_find.h" #include "error.h" #include "h/utils.h" @@ -19,10 +21,10 @@ /* * static prototypes */ +static void read_mts(const char *path); static char *tailor_value (char *); static void getuserinfo (void); -static const char *get_mtsconf_pathname(void); -static const char *get_mtsuserconf_pathname(void); +static const char *get_optional_env_var(const char *name, const char *fallback); static void mts_read_conf_file (FILE *fp); /* @@ -36,8 +38,6 @@ static void mts_read_conf_file (FILE *fp); /* * nmh mail transport interface customization file */ -static char *mtsconf = nmhetcdir(/mts.conf); - static char *localname = ""; static char *localdomain = ""; static char *systemname = ""; @@ -49,10 +49,13 @@ char *uucplfil = ""; char *spoollocking = DEFAULT_LOCKING; -/* Cache the username, fullname, and mailbox of the user */ +/* Cache the username, fullname, mailbox name, and mailbox of the user */ static char username[BUFSIZ]; static char fullname[BUFSIZ]; -static char localmbox[BUFSIZ]; +/* mboxname comes from a Local-Mailbox profile component, or if that + doesn't exist, the username. */ +static char mboxname[BUFSIZ]; +static char localmbox[2*BUFSIZ+3]; /* * MTS specific variables @@ -132,26 +135,39 @@ save_mts_method (const char *value) void mts_init (void) { - const char *cp; - FILE *fp; - static int inited = 0; + static bool deja_vu; + const char *path; - if (inited++ || (fp = fopen (get_mtsconf_pathname(), "r")) == NULL) - return; - mts_read_conf_file(fp); - fclose (fp); + if (deja_vu) + return; + deja_vu = true; - cp = get_mtsuserconf_pathname(); - if (cp != NULL && - ((fp = fopen (get_mtsuserconf_pathname(), "r")) != NULL)) { - mts_read_conf_file(fp); - fclose (fp); - } + path = get_optional_env_var("MHMTSCONF", NMHETCDIR "/mts.conf"); + read_mts(path); + + path = get_optional_env_var("MHMTSUSERCONF", NULL); + if (path) + read_mts(path); save_mts_method (mts_method); } +static void read_mts(const char *path) +{ + FILE *fp; + + fp = fopen(path, "r"); + if (!fp) + adios(path, "error opening mts.conf:"); + mts_read_conf_file(fp); + if (ferror(fp)) + adios(path, "error reading mts.conf:"); + if (fclose(fp)) + adios(path, "error closing mts.conf:"); +} + + #define QUOTE '\\' /* @@ -178,11 +194,11 @@ tailor_value (char *s) case 0: s--; /* FALLTHRU */ - case QUOTE: + case QUOTE: *bp = QUOTE; break; - default: + default: if (!isdigit ((unsigned char) *s)) { *bp++ = QUOTE; *bp = *s; @@ -218,7 +234,7 @@ LocalName (int flag) struct addrinfo hints, *res; if (flag < 0 || flag > 1) - return NULL; + return NULL; buf = buffer[flag]; @@ -230,7 +246,7 @@ LocalName (int flag) /* check if the mts.conf file specifies a "localname" */ if (*localname && flag == 0) { - strncpy (buf, localname, sizeof(buffer0)); + strncpy (buf, localname, sizeof(buffer0) - 1); } else { memset(buf, 0, sizeof(buffer0)); /* first get our local name */ @@ -277,7 +293,7 @@ SystemName (void) /* check if mts.conf file specifies a "systemname" */ if (*systemname) { - strncpy (buffer, systemname, sizeof(buffer)); + strncpy (buffer, systemname, sizeof(buffer) - 1); return buffer; } @@ -289,15 +305,19 @@ SystemName (void) /* * Get the username of current user + * + * If flag is 0, then attempt to extract username from Local-Mailbox profile + * component, if present. + * If flag is 1, then only use the "proper" local hostname. */ char * -getusername (void) +getusername (int flag) { if (username[0] == '\0') getuserinfo(); - return username; + return flag == 0 ? mboxname : username; } @@ -326,13 +346,13 @@ char * getlocalmbox (void) { if (username[0] == '\0') - getuserinfo(); + getuserinfo(); return localmbox; } /* - * Find the user's username and full name, and cache them. + * Find and cache the user's username, full name, and local mbox. */ static void @@ -350,38 +370,12 @@ getuserinfo (void) return; } - /* username */ - /* If there's a Local-Mailbox profile component, try to extract - the username from it. But don't try very hard, this assumes - the very simple User Name form. - Note that post(8) and whom(1) use context_foil (), so they - won't see the profile component. */ - if ((np = context_find("Local-Mailbox")) != NULL) { - char *left_angle_bracket = strchr (np, '<'); - char *at_sign = strchr (np, '@'); - char *right_angle_bracket = strchr (np, '>'); - - strncpy(localmbox, np, sizeof(localmbox)); - - if (left_angle_bracket && at_sign && right_angle_bracket) { - if (at_sign > left_angle_bracket && - at_sign - left_angle_bracket < BUFSIZ) { - strncpy(username, left_angle_bracket + 1, - at_sign - left_angle_bracket - 1); - } - } - } - if (username[0] == '\0') { strncpy (username, pw->pw_name, sizeof(username)); } - username[sizeof(username) - 1] = '\0'; - escape_local_part(username, sizeof(username)); - - /* fullname */ np = pw->pw_gecos; @@ -395,47 +389,58 @@ getuserinfo (void) /* The $SIGNATURE environment variable overrides the GECOS field's idea of your real name. If SIGNATURE isn't set, use the Signature profile setting if it exists. - Note that post(8) and whom(1) use context_foil (), so they - won't see the profile component. */ + Note that post(8) uses context_foil(), so it won't see the profile + component. */ if ((cp = getenv ("SIGNATURE")) && *cp) strncpy (fullname, cp, sizeof(fullname)); else if ((cp = context_find("Signature"))) - strncpy (fullname, cp, sizeof(fullname)); - + strncpy (fullname, cp, sizeof(fullname)); fullname[sizeof(fullname) - 1] = '\0'; - escape_display_name(fullname, sizeof(fullname)); + /* localmbox and mboxname */ + /* If there's a Local-Mailbox profile component, try to extract + the username from it. But don't try very hard, this assumes + the very simple User Name form. + Note that post(8) uses context_foil(), so it won't see the profile + component. */ + if ((np = context_find("Local-Mailbox")) != NULL) { + char *left_angle_bracket = strchr (np, '<'); + char *at_sign = strchr (np, '@'); + char *right_angle_bracket = strchr (np, '>'); - /* localmbox, if not using Local-Mailbox */ - if (localmbox[0] == '\0') { + strncpy(localmbox, np, sizeof(localmbox) - 1); + + if (left_angle_bracket && at_sign && right_angle_bracket) { + if (at_sign > left_angle_bracket && + at_sign - left_angle_bracket < BUFSIZ) { + strncpy(mboxname, left_angle_bracket + 1, + at_sign - left_angle_bracket - 1); + } + } + } else { snprintf(localmbox, sizeof(localmbox), "%s <%s@%s>", fullname, username, LocalName(0)); } - localmbox[sizeof(localmbox) - 1] = '\0'; -} - -static const char* -get_mtsconf_pathname (void) -{ - const char *cp = getenv ( "MHMTSCONF" ); - if (cp != NULL && *cp != '\0') { - return cp; + if (mboxname[0] == '\0') { + strncpy (mboxname, username, sizeof(mboxname)); } - return mtsconf; + mboxname[sizeof(mboxname) - 1] = '\0'; + escape_local_part(mboxname, sizeof(mboxname)); } -static const char* -get_mtsuserconf_pathname (void) + +static const char * +get_optional_env_var(const char *name, const char *fallback) { - const char *cp = getenv ( "MHMTSUSERCONF" ); - if (cp != NULL && *cp != '\0') { - return cp; - } - return NULL; + const char *v = getenv(name); + if (v) + return v; + return fallback; } + static void mts_read_conf_file (FILE *fp) {