X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/743385eab9ac6f11d8398038a1f2e9b4917ac77c..a3724ed39:/uip/inc.c diff --git a/uip/inc.c b/uip/inc.c index 8b9fe7ae..0890f831 100644 --- a/uip/inc.c +++ b/uip/inc.c @@ -1,6 +1,4 @@ - -/* - * inc.c -- incorporate messages from a maildrop into a folder +/* inc.c -- incorporate messages from a maildrop into a folder * * This code is Copyright (c) 2002, by the authors of nmh. See the * COPYRIGHT file in the root directory of the nmh distribution for @@ -8,7 +6,13 @@ */ #ifdef MAILGROUP -/* Revised: Sat Apr 14 17:08:17 PDT 1990 (marvit@hplabs) +/* + * Thu Feb 12 21:00 CST 2015 Marcin Cieslak + * Replaced setgid() calls with setegid() so that it works with dot + * locking on FreeBSD. setegid() should be supported on modern POSIX + * systems. + * + * Revised: Sat Apr 14 17:08:17 PDT 1990 (marvit@hplabs) * Added hpux hacks to set and reset gid to be "mail" as needed. The reset * is necessary so inc'ed mail is the group of the inc'er, rather than * "mail". We setgid to egid only when [un]locking the mail file. This @@ -36,11 +40,14 @@ #include #include #include +#include "../sbr/lock_file.h" +#include "../sbr/m_maildir.h" +#include "../sbr/m_mktemp.h" -#ifndef CYRUS_SASL -# define SASLminc(a) (a) +#ifndef TLS_SUPPORT +# define TLSminc(a) (a) #else -# define SASLminc(a) 0 +# define TLSminc(a) 0 #endif #define INC_SWITCHES \ @@ -53,8 +60,6 @@ X("format string", 5, FMTSW) \ X("host hostname", 0, HOSTSW) \ X("user username", 0, USERSW) \ - X("pack file", 0, PACKSW) \ - X("nopack", 0, NPACKSW) \ X("port name/number", 0, PORTSW) \ X("silent", 0, SILSW) \ X("nosilent", 0, NSILSW) \ @@ -63,10 +68,15 @@ X("width columns", 0, WIDTHSW) \ X("version", 0, VERSIONSW) \ X("help", 0, HELPSW) \ - X("snoop", -5, SNOOPSW) \ - X("sasl", SASLminc(-4), SASLSW) \ - X("nosasl", SASLminc(-6), NOSASLSW) \ - X("saslmech", SASLminc(-8), SASLMECHSW) \ + X("snoop", 0, SNOOPSW) \ + X("sasl", 0, SASLSW) \ + X("nosasl", 0, NOSASLSW) \ + X("saslmech", 0, SASLMECHSW) \ + X("initialtls", TLSminc(-10), INITTLSSW) \ + X("notls", TLSminc(-5), NOTLSSW) \ + X("certverify", TLSminc(-10), CERTVERSW) \ + X("nocertverify", TLSminc(-12), NOCERTVERSW) \ + X("authservice", 0, AUTHSERVICESW) \ X("proxy command", 0, PROXYSW) \ #define X(sw, minchars, id) id, @@ -93,16 +103,9 @@ static int snoop = 0; extern char response[]; -static int size; -static long pos; - -static int mbx_style = MMDF_FORMAT; -static int pd = NOTOK; - static long start; static long stop; -static char *packfile = NULL; static FILE *pf = NULL; /* This is an attempt to simplify things by putting all the @@ -127,10 +130,16 @@ static FILE *pf = NULL; * For setting and returning to "mail" gid */ #ifdef MAILGROUP -static int return_gid; +static gid_t return_gid; #define TRYDROPGROUPPRIVS() DROPGROUPPRIVS() -#define DROPGROUPPRIVS() setgid(getgid()) -#define GETGROUPPRIVS() setgid(return_gid) +#define DROPGROUPPRIVS() \ + if (setegid(getgid()) != 0) { \ + adios ("setegid", "unable to restore group to %ld", (long) getgid()); \ + } +#define GETGROUPPRIVS() \ + if (setegid(return_gid) != 0) { \ + adios ("setegid", "unable to set group to %ld", (long) return_gid); \ + } #define SAVEGROUPPRIVS() return_gid = getegid() #else /* define *GROUPPRIVS() as null; this avoids having lots of "#ifdef MAILGROUP"s */ @@ -148,12 +157,8 @@ static FILE *in; /* * prototypes */ -char *map_name(char *); - static void inc_done(int) NORETURN; static int pop_action(char *); -static int pop_pack(char *); -static int map_count(void); int maildir_srt(const void *va, const void *vb) @@ -161,24 +166,25 @@ maildir_srt(const void *va, const void *vb) const struct Maildir_entry *a = va, *b = vb; if (a->mtime > b->mtime) return 1; - else if (a->mtime < b->mtime) + if (a->mtime < b->mtime) return -1; - else - return 0; + return 0; } int main (int argc, char **argv) { - int chgflag = 1, trnflag = 1; - int noisy = 1, width = -1; + bool chgflag; + int trnflag = 1; + bool noisy; + int width = -1; int hghnum = 0, msgnum = 0; - int sasl = 0; + bool sasl, tls, noverify; int incerr = 0; /* <0 if inc hits an error which means it should not truncate mailspool */ char *cp, *maildir = NULL, *folder = NULL; char *format = NULL, *form = NULL; char *host = NULL, *port = NULL, *user = NULL, *proxy = NULL; - char *audfile = NULL, *from = NULL, *saslmech = NULL; + char *audfile = NULL, *from = NULL, *saslmech = NULL, *auth_svc = NULL; char buf[BUFSIZ], **argp, *nfs, **arguments; struct msgs *mp = NULL; struct stat st, s1; @@ -188,7 +194,6 @@ main (int argc, char **argv) int nmsgs, nbytes; char *MAILHOST_env_variable; - done=inc_done; /* absolutely the first thing we do is save our privileges, @@ -199,7 +204,7 @@ main (int argc, char **argv) if (nmh_init(argv[0], 1)) { return 1; } - mts_init (invo_name); + mts_init (); arguments = getarguments (invo_name, argc, argv, 1); argp = arguments; @@ -219,16 +224,18 @@ main (int argc, char **argv) if (pophost && *pophost) host = pophost; + sasl = tls = false; + chgflag = noisy = noverify = true; while ((cp = *argp++)) { if (*cp == '-') { switch (smatch (++cp, switches)) { - case AMBIGSW: + case AMBIGSW: ambigsw (cp, switches); done (1); - case UNKWNSW: + case UNKWNSW: adios (NULL, "-%s unknown", cp); - case HELPSW: + case HELPSW: snprintf (buf, sizeof(buf), "%s [+folder] [switches]", invo_name); print_help (buf, switches, 1); done (0); @@ -236,20 +243,20 @@ main (int argc, char **argv) print_version(invo_name); done (0); - case AUDSW: + case AUDSW: if (!(cp = *argp++) || *cp == '-') adios (NULL, "missing argument to %s", argp[-2]); audfile = getcpy (m_maildir (cp)); continue; - case NAUDSW: + case NAUDSW: audfile = NULL; continue; - case CHGSW: - chgflag++; + case CHGSW: + chgflag = true; continue; - case NCHGSW: - chgflag = 0; + case NCHGSW: + chgflag = false; continue; /* @@ -259,14 +266,14 @@ main (int argc, char **argv) * 1 by default (truncating is default) * 0 if -notruncate is given */ - case TRNCSW: + case TRNCSW: trnflag = 2; continue; - case NTRNCSW: + case NTRNCSW: trnflag = 0; continue; - case FILESW: + case FILESW: if (!(cp = *argp++) || *cp == '-') adios (NULL, "missing argument to %s", argp[-2]); from = path (cp, TFILE); @@ -279,25 +286,25 @@ main (int argc, char **argv) trnflag = 0; continue; - case SILSW: - noisy = 0; + case SILSW: + noisy = false; continue; - case NSILSW: - noisy++; + case NSILSW: + noisy = true; continue; - case FORMSW: + case FORMSW: if (!(form = *argp++) || *form == '-') adios (NULL, "missing argument to %s", argp[-2]); format = NULL; continue; - case FMTSW: + case FMTSW: if (!(format = *argp++) || *format == '-') adios (NULL, "missing argument to %s", argp[-2]); form = NULL; continue; - case WIDTHSW: + case WIDTHSW: if (!(cp = *argp++) || *cp == '-') adios (NULL, "missing argument to %s", argp[-2]); width = atoi (cp); @@ -318,29 +325,47 @@ main (int argc, char **argv) adios (NULL, "missing argument to %s", argp[-2]); continue; - case PACKSW: - if (!(packfile = *argp++) || *packfile == '-') - adios (NULL, "missing argument to %s", argp[-2]); - continue; - case NPACKSW: - packfile = NULL; - continue; - case SNOOPSW: snoop++; continue; case SASLSW: - sasl++; + sasl = true; continue; case NOSASLSW: - sasl = 0; + sasl = false; continue; case SASLMECHSW: if (!(saslmech = *argp++) || *saslmech == '-') adios (NULL, "missing argument to %s", argp[-2]); continue; + + case INITTLSSW: + tls = true; + continue; + + case NOTLSSW: + tls = false; + continue; + + case CERTVERSW: + noverify = false; + continue; + + case NOCERTVERSW: + noverify = true; + continue; + + case AUTHSERVICESW: +#ifdef OAUTH_SUPPORT + if (!(auth_svc = *argp++) || *auth_svc == '-') + adios (NULL, "missing argument to %s", argp[-2]); +#else + adios (NULL, "not built with OAuth support"); +#endif + continue; + case PROXYSW: if (!(proxy = *argp++) || *proxy == '-') adios (NULL, "missing argument to %s", argp[-2]); @@ -363,7 +388,7 @@ main (int argc, char **argv) if (host && !*host) host = NULL; - /* guarantee dropping group priveleges; we might not have done so earlier */ + /* guarantee dropping group privileges; we might not have done so earlier */ DROPGROUPPRIVS(); /* @@ -381,14 +406,29 @@ main (int argc, char **argv) * a POP server? */ if (inc_type == INC_POP) { - struct nmh_creds creds = { 0, 0, 0 }; + int tlsflag = 0; + + if (auth_svc == NULL) { + if (saslmech && ! strcasecmp(saslmech, "xoauth2")) { + adios (NULL, "must specify -authservice with -saslmech xoauth2"); + } + } else { + if (user == NULL) { + adios (NULL, "must specify -user with -saslmech xoauth2"); + } + } + + if (tls) + tlsflag |= P_INITTLS; + + if (noverify) + tlsflag |= P_NOVERIFY; /* * initialize POP connection */ - nmh_get_credentials (host, user, sasl, &creds); - if (pop_init (host, port, creds.user, creds.password, proxy, snoop, - sasl, saslmech) == NOTOK) + if (pop_init (host, port, user, proxy, snoop, sasl, saslmech, + tlsflag, auth_svc) == NOTOK) adios (NULL, "%s", response); /* Check if there are any messages */ @@ -468,24 +508,16 @@ main (int argc, char **argv) qsort (Maildir, num_maildir_entries, sizeof(*Maildir), maildir_srt); } - if ((cp = strdup(newmail)) == (char *)0) - adios (NULL, "error allocating memory to copy newmail"); - + cp = mh_xstrdup(newmail); newmail = cp; } - /* skip the folder setup */ - if ((inc_type == INC_POP) && packfile) - goto go_to_it; - if (!context_find ("path")) free (path ("./", TFOLDER)); if (!folder) folder = getfolder (0); maildir = m_maildir (folder); - - if ((maildir_copy = strdup(maildir)) == (char *)0) - adios (maildir, "error allocating memory to copy maildir"); + maildir_copy = mh_xstrdup(maildir); if (!folder_exists(maildir)) { /* If the folder doesn't exist, and we're given the -silent flag, @@ -504,8 +536,6 @@ main (int argc, char **argv) if (!(mp = folder_read (folder, 0))) adios (NULL, "unable to read folder %s", folder); -go_to_it: - if (inc_type == INC_FILE && Maildir == NULL) { if (access (newmail, W_OK) != NOTOK) { locked++; @@ -535,7 +565,7 @@ go_to_it: if (audfile) { int i; if ((i = stat (audfile, &st)) == NOTOK) - advise (NULL, "Creating Receive-Audit: %s", audfile); + inform("Creating Receive-Audit: %s", audfile); if ((aud = fopen (audfile, "a")) == NULL) adios (audfile, "unable to append to"); else if (i == NOTOK) @@ -566,81 +596,44 @@ go_to_it: */ if (inc_type == INC_POP) { int i; - if (packfile) { - packfile = path (packfile, TFILE); - if (stat (packfile, &st) == NOTOK) { - if (errno != ENOENT) - adios (packfile, "error on file"); - cp = concat ("Create file \"", packfile, "\"? ", NULL); - if (noisy && !getanswer (cp)) - done (1); - free (cp); - } - msgnum = map_count (); - if ((pd = mbx_open (packfile, mbx_style, getuid(), getgid(), m_gmprot())) - == NOTOK) - adios (packfile, "unable to open"); - if ((pf = fdopen (pd, "w+")) == NULL) - adios (NULL, "unable to fdopen %s", packfile); - } else { - hghnum = msgnum = mp->hghmsg; - } + hghnum = msgnum = mp->hghmsg; for (i = 1; i <= nmsgs; i++) { charstring_t scanl = NULL; msgnum++; - if (packfile) { - fseek (pf, 0L, SEEK_CUR); - pos = ftell (pf); - size = 0; - if (fwrite (mmdlm1, 1, strlen (mmdlm1), pf) < strlen (mmdlm1)) { - advise (mmdlm1, "fwrite"); - } - start = ftell (pf); - - if (pop_retr (i, pop_pack) == NOTOK) - adios (NULL, "%s", response); - - fseek (pf, 0L, SEEK_CUR); - stop = ftell (pf); - if (fflush (pf)) - adios (packfile, "write error on"); - fseek (pf, start, SEEK_SET); - } else { - cp = getcpy (m_name (msgnum)); - if ((pf = fopen (cp, "w+")) == NULL) - adios (cp, "unable to write"); - chmod (cp, m_gmprot ()); - start = stop = 0L; - - if (pop_retr (i, pop_action) == NOTOK) - adios (NULL, "%s", response); - - if (fflush (pf)) - adios (cp, "write error on"); - fseek (pf, 0L, SEEK_SET); - } + cp = mh_xstrdup(m_name (msgnum)); + if ((pf = fopen (cp, "w+")) == NULL) + adios (cp, "unable to write"); + chmod (cp, m_gmprot ()); + start = stop = 0L; + + if (pop_retr (i, pop_action) == NOTOK) + adios (NULL, "%s", response); + + if (fflush (pf)) + adios (cp, "write error on"); + fseek (pf, 0L, SEEK_SET); switch (incerr = scan (pf, msgnum, 0, nfs, width, - packfile ? 0 : msgnum == mp->hghmsg + 1 && chgflag, + msgnum == mp->hghmsg + 1 && chgflag, 1, NULL, stop - start, noisy, &scanl)) { - case SCNEOF: + case SCNEOF: printf ("%*d empty\n", DMAXFOLDER, msgnum); break; case SCNFAT: trnflag = 0; - noisy++; + noisy = true; /* advise (cp, "unable to read"); already advised */ - /* fall thru */ + break; case SCNERR: - case SCNNUM: + case SCNNUM: break; - case SCNMSG: + case SCNMSG: case SCNENC: - default: + default: if (aud) fputs (charstring_buffer (scanl), aud); if (noisy) @@ -649,28 +642,14 @@ go_to_it: } charstring_free (scanl); - if (packfile) { - fseek (pf, stop, SEEK_SET); - if (fwrite (mmdlm2, 1, strlen (mmdlm2), pf) < strlen (mmdlm1)) { - advise (mmdlm2, "fwrite"); - } - if (fflush (pf) || ferror (pf)) { - int e = errno; - pop_quit (); - errno = e; - adios (packfile, "write error on"); - } - map_write (packfile, pd, 0, 0L, start, stop, pos, size, noisy); - } else { - if (ferror(pf) || fclose (pf)) { - int e = errno; - (void) m_unlink (cp); - pop_quit (); - errno = e; - adios (cp, "write error on"); - } - free (cp); - } + if (ferror(pf) || fclose (pf)) { + int e = errno; + (void) m_unlink (cp); + pop_quit (); + errno = e; + adios (cp, "write error on"); + } + free (cp); if (trnflag && pop_dele (i) == NOTOK) adios (NULL, "%s", response); @@ -680,10 +659,6 @@ go_to_it: if (pop_quit () == NOTOK) adios (NULL, "%s", response); - if (packfile) { - mbx_close (packfile, pd); - pd = NOTOK; - } } /* @@ -700,21 +675,21 @@ go_to_it: msgnum == hghnum && chgflag, 1, NULL, 0L, noisy, &scanl)) { case SCNFAT: - case SCNEOF: + case SCNEOF: break; case SCNERR: if (aud) fputs ("inc aborted!\n", aud); - advise (NULL, "aborted!"); /* doesn't clean up locks! */ + inform("aborted!"); /* doesn't clean up locks! */ break; - case SCNNUM: - advise (NULL, "BUG in %s, number out of range", invo_name); + case SCNNUM: + inform("BUG in %s, number out of range", invo_name); break; - default: - advise (NULL, "BUG in %s, scan() botch (%d)", invo_name, incerr); + default: + inform("BUG in %s, scan() botch (%d)", invo_name, incerr); break; case SCNMSG: @@ -724,7 +699,7 @@ go_to_it: */ (void)snprintf(b, sizeof (b), "%s/%d", maildir_copy, msgnum + 1); - (void)ext_hook("add-hook", b, (char *)0); + (void)ext_hook("add-hook", b, NULL); if (aud) fputs (charstring_buffer (scanl), aud); @@ -753,7 +728,7 @@ go_to_it: msgnum++; sp = Maildir[i].filename; - cp = getcpy (m_name (msgnum)); + cp = mh_xstrdup(m_name (msgnum)); pf = NULL; if (!trnflag || link(sp, cp) == -1) { static char buf[65536]; @@ -774,7 +749,7 @@ go_to_it: } fclose (sf); sf = NULL; - } + } if (pf == NULL && (pf = fopen (cp, "r")) == NULL) adios (cp, "not available"); chmod (cp, m_gmprot ()); @@ -783,29 +758,29 @@ go_to_it: switch (incerr = scan (pf, msgnum, 0, nfs, width, msgnum == mp->hghmsg + 1 && chgflag, 1, NULL, stop - start, noisy, &scanl)) { - case SCNEOF: + case SCNEOF: printf ("%*d empty\n", DMAXFOLDER, msgnum); break; case SCNFAT: trnflag = 0; - noisy++; + noisy = true; /* advise (cp, "unable to read"); already advised */ - /* fall thru */ + break; case SCNERR: - case SCNNUM: + case SCNNUM: break; - case SCNMSG: + case SCNMSG: case SCNENC: - default: + default: /* * Run the external program hook on the message. */ (void)snprintf(b, sizeof (b), "%s/%d", maildir_copy, msgnum + 1); - (void)ext_hook("add-hook", b, (char *)0); + (void)ext_hook("add-hook", b, NULL); if (aud) fputs (charstring_buffer (scanl), aud); @@ -852,23 +827,19 @@ go_to_it: if (noisy) fflush (stdout); - if ((inc_type == INC_POP) && packfile) - done (0); - /* * truncate file we are incorporating from */ if (inc_type == INC_FILE && Maildir == NULL) { if (trnflag) { if (stat (newmail, &st) != NOTOK && s1.st_mtime != st.st_mtime) - advise (NULL, "new messages have arrived!\007"); + inform("new messages have arrived!\007"); else { int newfd; if ((newfd = creat (newmail, 0600)) != NOTOK) close (newfd); else admonish (newmail, "error zero'ing"); - (void) m_unlink(map_name(newmail)); } } else { if (noisy) @@ -877,7 +848,7 @@ go_to_it: } if (msgnum == hghnum) { - admonish (NULL, "no messages incorporated"); + inform("no messages incorporated, continuing..."); } else { /* * Lock the sequence file now, and loop to set the right flags @@ -890,7 +861,7 @@ go_to_it: context_replace (pfolder, folder); /* update current folder */ if ((mp2 = folder_read(folder, 1)) == NULL) { - admonish(NULL, "Unable to reread folder %s", folder); + inform("Unable to reread folder %s, continuing...", folder); goto skip; } @@ -900,7 +871,7 @@ go_to_it: if (msgnum >= mp2->hghoff && !(mp2 = folder_realloc (mp2, mp2->lowoff, msgnum + 1))) { - advise (NULL, "unable to reallocate folder storage"); + inform("unable to reallocate folder storage"); goto skip; } @@ -944,11 +915,10 @@ skip: } -static void +static void NORETURN inc_done (int status) { - if (packfile && pd != NOTOK) - mbx_close (packfile, pd); + done = exit; if (locked) { GETGROUPPRIVS(); @@ -965,39 +935,3 @@ pop_action (char *s) stop += strlen (s) + 1; return 0; /* Is return value used? This was missing before 1999-07-15. */ } - -static int -pop_pack (char *s) -{ - int j; - char buffer[BUFSIZ]; - - snprintf (buffer, sizeof(buffer), "%s\n", s); - for ( ; (j = stringdex (mmdlm1, buffer)) >= 0; buffer[j]++) - continue; - for ( ; (j = stringdex (mmdlm2, buffer)) >= 0; buffer[j]++) - continue; - fputs (buffer, pf); - size += strlen (buffer) + 1; - return 0; /* Is return value used? This was missing before 1999-07-15. */ -} - -static int -map_count (void) -{ - int md; - char *cp; - struct drop d; - struct stat st; - - if (stat (packfile, &st) == NOTOK) - return 0; - if ((md = open (cp = map_name (packfile), O_RDONLY)) == NOTOK - || map_chk (cp, md, &d, (long) st.st_size, 1)) { - if (md != NOTOK) - close (md); - return 0; - } - close (md); - return (d.d_id); -}