X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/ff804ff5484d87f6874d9b9cb53528d4e3766298..40fb2103c2986cbb91add4afed635886c4f87ae5:/lib-src/movemail.c diff --git a/lib-src/movemail.c b/lib-src/movemail.c index 4d82440134..e4243a1bd6 100644 --- a/lib-src/movemail.c +++ b/lib-src/movemail.c @@ -1,6 +1,6 @@ /* movemail foo bar -- move file foo to file bar, locking file foo the way /bin/mail respects. - Copyright (C) 1986, 1992, 1993, 1994, 1996 Free Software Foundation, Inc. + Copyright (C) 1986, 92, 93, 94, 96, 1999 Free Software Foundation, Inc. This file is part of GNU Emacs. @@ -39,11 +39,11 @@ Boston, MA 02111-1307, USA. */ * "po:username". This will cause movemail to open a connection to * a pop server running on $MAILHOST (environment variable). Movemail * must be setuid to root in order to work with POP. - * + * * New module: popmail.c * Modified routines: * main - added code within #ifdef MAIL_USE_POP; added setuid (getuid ()) - * after POP code. + * after POP code. * New routines in movemail.c: * get_errmsg - return pointer to system error message * @@ -55,14 +55,21 @@ Boston, MA 02111-1307, USA. */ */ #define NO_SHORTNAMES /* Tell config not to load remap.h */ -#include <../src/config.h> +#include #include #include #include #include #include -#include <../src/syswait.h> + #include +#ifdef HAVE_UNISTD_H +#include +#endif +#ifdef HAVE_FCNTL_H +#include +#endif +#include "syswait.h" #ifdef MAIL_USE_POP #include "pop.h" #endif @@ -79,32 +86,31 @@ Boston, MA 02111-1307, USA. */ #endif #ifdef WINDOWSNT +#include "ntlib.h" #undef access #undef unlink #define fork() 0 -#define sys_wait(var) (*(var) = 0) +#define wait(var) (*(var) = 0) /* Unfortunately, Samba doesn't seem to properly lock Unix files even though the locking call succeeds (and indeed blocks local access from other NT programs). If you have direct file access using an NFS client or something other than Samba, the locking call might work - properly - make sure it does before you enable this! */ -#define DISABLE_DIRECT_ACCESS -#endif /* WINDOWSNT */ + properly - make sure it does before you enable this! + + [18-Feb-97 andrewi] I now believe my comment above to be incorrect, + since it was based on a misunderstanding of how locking calls are + implemented and used on Unix. */ +//#define DISABLE_DIRECT_ACCESS -#ifdef USG #include -#include +#endif /* WINDOWSNT */ + #ifndef F_OK #define F_OK 0 #define X_OK 1 #define W_OK 2 #define R_OK 4 #endif -#endif /* USG */ - -#ifdef HAVE_UNISTD_H -#include -#endif #if defined (XENIX) || defined (WINDOWSNT) #include @@ -123,7 +129,8 @@ extern int lk_open (), lk_close (); #endif #if !defined (MAIL_USE_SYSTEM_LOCK) && !defined (MAIL_USE_MMDF) && \ - defined (HAVE_LIBMAIL) && defined (HAVE_MAILLOCK_H) + (defined (HAVE_LIBMAIL) || defined (HAVE_LIBLOCKFILE)) && \ + defined (HAVE_MAILLOCK_H) #include /* We can't use maillock unless we know what directory system mail files appear in. */ @@ -133,16 +140,16 @@ static char *mail_spool_name (); #endif #endif -/* Cancel substitutions made by config.h for Emacs. */ -#undef open -#undef read -#undef write -#undef close - #ifndef errno extern int errno; #endif char *strerror (); +#ifdef HAVE_INDEX +extern char *index __P ((const char *, int)); +#endif +#ifdef HAVE_RINDEX +extern char *rindex __P((const char *, int)); +#endif void fatal (); void error (); @@ -183,16 +190,33 @@ main (argc, argv) char *spool_name; #endif +#ifdef MAIL_USE_POP + int pop_reverse_order = 0; +# define ARGSTR "pr" +#else /* ! MAIL_USE_POP */ +# define ARGSTR "p" +#endif /* MAIL_USE_POP */ + +#ifdef WINDOWSNT + /* Ensure all file i/o is in binary mode. */ + _fmode = _O_BINARY; +#endif + delete_lockname = 0; - while ((c = getopt (argc, argv, "p")) != EOF) + while ((c = getopt (argc, argv, ARGSTR)) != EOF) { switch (c) { +#ifdef MAIL_USE_POP + case 'r': + pop_reverse_order = 1; + break; +#endif case 'p': preserve_mail++; break; default: - exit(1); + exit (EXIT_FAILURE); } } @@ -204,14 +228,13 @@ main (argc, argv) #endif ) { - fprintf (stderr, "Usage: movemail [-p] inbox destfile%s\n", #ifdef MAIL_USE_POP - " [POP-password]" + fprintf (stderr, "Usage: movemail [-p] inbox destfile%s\n", + " [POP-password]"); #else - "" + fprintf (stderr, "Usage: movemail [-p] inbox destfile%s\n", ""); #endif - ); - exit (1); + exit (EXIT_FAILURE); } inname = argv[optind]; @@ -222,7 +245,7 @@ main (argc, argv) #endif if (*outname == 0) - fatal ("Destination file name is empty", 0); + fatal ("Destination file name is empty", 0, 0); /* Check access to output file. */ if (access (outname, F_OK) == 0 && access (outname, W_OK) != 0) @@ -249,7 +272,8 @@ main (argc, argv) int status; status = popmail (inname + 3, outname, preserve_mail, - (argc - optind == 3) ? argv[optind+2] : NULL); + (argc - optind == 3) ? argv[optind+2] : NULL, + pop_reverse_order); exit (status); } @@ -311,7 +335,7 @@ main (argc, argv) if (desc < 0) { char *message = (char *) xmalloc (strlen (tempname) + 50); - sprintf (message, "%s--see source file lib-src/movemail.c", + sprintf (message, "creating %s, which would become the lock file", tempname); pfatal_with_name (message); } @@ -434,7 +458,7 @@ main (argc, argv) pfatal_with_name (inname); } - + { char buf[1024]; @@ -476,14 +500,14 @@ main (argc, argv) #ifdef MAIL_USE_SYSTEM_LOCK if (! preserve_mail) { -#if defined (STRIDE) || defined (XENIX) || defined (WINDOWSNT) +#if defined (STRIDE) || defined (XENIX) /* Stride, xenix have file locking, but no ftruncate. This mess will do. */ close (open (inname, O_CREAT | O_TRUNC | O_RDWR, 0666)); #else ftruncate (indesc, 0L); - } #endif /* STRIDE or XENIX */ + } #endif /* MAIL_USE_SYSTEM_LOCK */ #ifdef MAIL_USE_MMDF @@ -512,12 +536,12 @@ main (argc, argv) if (spool_name) mailunlock (); #endif - exit (0); + exit (EXIT_SUCCESS); } wait (&status); if (!WIFEXITED (status)) - exit (1); + exit (EXIT_FAILURE); else if (WRETCODE (status) != 0) exit (WRETCODE (status)); @@ -530,7 +554,7 @@ main (argc, argv) #endif /* ! DISABLE_DIRECT_ACCESS */ - return 0; + return EXIT_SUCCESS; } #ifdef MAIL_USE_MAILLOCK @@ -566,8 +590,8 @@ mail_spool_name (inname) if (status < 0) return NULL; - if ((stat1.st_dev == stat2.st_dev) && - (stat1.st_ino == stat2.st_ino)) + if (stat1.st_dev == stat2.st_dev + && stat1.st_ino == stat2.st_ino) return fname; return NULL; @@ -577,23 +601,29 @@ mail_spool_name (inname) /* Print error message and exit. */ void -fatal (s1, s2) - char *s1, *s2; +fatal (s1, s2, s3) + char *s1, *s2, *s3; { if (delete_lockname) unlink (delete_lockname); - error (s1, s2); - exit (1); + error (s1, s2, s3); + exit (EXIT_FAILURE); } -/* Print error message. `s1' is printf control string, `s2' is arg for it. */ +/* Print error message. `s1' is printf control string, `s2' and `s3' + are args for it or null. */ void error (s1, s2, s3) char *s1, *s2, *s3; { fprintf (stderr, "movemail: "); - fprintf (stderr, s1, s2, s3); + if (s3) + fprintf (stderr, s1, s2, s3); + else if (s2) + fprintf (stderr, s1, s2); + else + fprintf (stderr, s1); fprintf (stderr, "\n"); } @@ -601,17 +631,16 @@ void pfatal_with_name (name) char *name; { - char *s = concat ("", strerror (errno), " for %s"); - fatal (s, name); + fatal ("%s for %s", strerror (errno), name); } void pfatal_and_delete (name) char *name; { - char *s = concat ("", strerror (errno), " for %s"); + char *s = strerror (errno); unlink (name); - fatal (s, name); + fatal ("%s for %s", s, name); } /* Return a newly-allocated string whose contents concatenate those of s1, s2, s3. */ @@ -639,7 +668,7 @@ xmalloc (size) { long *result = (long *) malloc (size); if (!result) - fatal ("virtual memory exhausted", 0); + fatal ("virtual memory exhausted", 0, 0); return result; } @@ -666,13 +695,30 @@ FILE *sfi; FILE *sfo; char ibuffer[BUFSIZ]; char obuffer[BUFSIZ]; -char Errmsg[80]; +char Errmsg[200]; /* POP errors, at least, can exceed + the original length of 80. */ -popmail (user, outfile, preserve, password) - char *user; +/* + * The full legal syntax for a POP mailbox specification for movemail + * is "po:username:hostname". The ":hostname" is optional; if it is + * omitted, the MAILHOST environment variable will be consulted. Note + * that by the time popmail() is called the "po:" has been stripped + * off of the front of the mailbox name. + * + * If the mailbox is in the form "po:username:hostname", then it is + * modified by this function -- the second colon is replaced by a + * null. + * + * Return a value suitable for passing to `exit'. + */ + +int +popmail (mailbox, outfile, preserve, password, reverse_order) + char *mailbox; char *outfile; int preserve; char *password; + int reverse_order; { int nmsgs, nbytes; register int i; @@ -680,24 +726,30 @@ popmail (user, outfile, preserve, password) FILE *mbf; char *getenv (); popserver server; + int start, end, increment; + char *user, *hostname; + + user = mailbox; + if ((hostname = index(mailbox, ':'))) + *hostname++ = '\0'; - server = pop_open (0, user, password, POP_NO_GETPASS); + server = pop_open (hostname, user, password, POP_NO_GETPASS); if (! server) { - error (pop_error); - return (1); + error ("Error connecting to POP server: %s", pop_error, 0); + return EXIT_FAILURE; } if (pop_stat (server, &nmsgs, &nbytes)) { - error (pop_error); - return (1); + error ("Error getting message count from POP server: %s", pop_error, 0); + return EXIT_FAILURE; } if (!nmsgs) { pop_close (server); - return (0); + return EXIT_SUCCESS; } mbfi = open (outfile, O_WRONLY | O_CREAT | O_EXCL, 0666); @@ -705,36 +757,49 @@ popmail (user, outfile, preserve, password) { pop_close (server); error ("Error in open: %s, %s", strerror (errno), outfile); - return (1); + return EXIT_FAILURE; } fchown (mbfi, getuid (), -1); if ((mbf = fdopen (mbfi, "wb")) == NULL) { pop_close (server); - error ("Error in fdopen: %s", strerror (errno)); + error ("Error in fdopen: %s", strerror (errno), 0); close (mbfi); unlink (outfile); - return (1); + return EXIT_FAILURE; } - for (i = 1; i <= nmsgs; i++) + if (reverse_order) + { + start = nmsgs; + end = 1; + increment = -1; + } + else + { + start = 1; + end = nmsgs; + increment = 1; + } + + for (i = start; i * increment <= end * increment; i += increment) { mbx_delimit_begin (mbf); if (pop_retr (server, i, mbf) != OK) { - error (Errmsg); + error ("%s", Errmsg, 0); close (mbfi); - return (1); + return EXIT_FAILURE; } mbx_delimit_end (mbf); fflush (mbf); if (ferror (mbf)) { - error ("Error in fflush: %s", strerror (errno)); + error ("Error in fflush: %s", strerror (errno), 0); pop_close (server); close (mbfi); - return (1); + return EXIT_FAILURE; } } @@ -747,15 +812,15 @@ popmail (user, outfile, preserve, password) #ifdef BSD_SYSTEM if (fsync (mbfi) < 0) { - error ("Error in fsync: %s", strerror (errno)); - return (1); + error ("Error in fsync: %s", strerror (errno), 0); + return EXIT_FAILURE; } #endif if (close (mbfi) == -1) { - error ("Error in close: %s", strerror (errno)); - return (1); + error ("Error in close: %s", strerror (errno), 0); + return EXIT_FAILURE; } if (! preserve) @@ -763,24 +828,25 @@ popmail (user, outfile, preserve, password) { if (pop_delete (server, i)) { - error (pop_error); + error ("Error from POP server: %s", pop_error, 0); pop_close (server); - return (1); + return EXIT_FAILURE; } } if (pop_quit (server)) { - error (pop_error); - return (1); + error ("Error from POP server: %s", pop_error, 0); + return EXIT_FAILURE; } - - return (0); + + return EXIT_SUCCESS; } int pop_retr (server, msgno, arg) popserver server; + int msgno; FILE *arg; { extern char *strerror (); @@ -789,17 +855,19 @@ pop_retr (server, msgno, arg) if (pop_retrieve_first (server, msgno, &line)) { - strncpy (Errmsg, pop_error, sizeof (Errmsg)); + char *error = concat ("Error from POP server: ", pop_error, ""); + strncpy (Errmsg, error, sizeof (Errmsg)); Errmsg[sizeof (Errmsg)-1] = '\0'; + free(error); return (NOTOK); } - while (! (ret = pop_retrieve_next (server, &line))) + while ((ret = pop_retrieve_next (server, &line)) >= 0) { if (! line) break; - if (mbx_write (line, arg) != OK) + if (mbx_write (line, ret, arg) != OK) { strcpy (Errmsg, strerror (errno)); pop_close (server); @@ -809,8 +877,10 @@ pop_retr (server, msgno, arg) if (ret) { - strncpy (Errmsg, pop_error, sizeof (Errmsg)); + char *error = concat ("Error from POP server: ", pop_error, ""); + strncpy (Errmsg, error, sizeof (Errmsg)); Errmsg[sizeof (Errmsg)-1] = '\0'; + free(error); return (NOTOK); } @@ -825,16 +895,26 @@ pop_retr (server, msgno, arg) && (a[4] == ' ')) int -mbx_write (line, mbf) +mbx_write (line, len, mbf) char *line; + int len; FILE *mbf; { +#ifdef MOVEMAIL_QUOTE_POP_FROM_LINES if (IS_FROM_LINE (line)) { if (fputc ('>', mbf) == EOF) return (NOTOK); } - if (fputs (line, mbf) == EOF) +#endif + if (line[0] == '\037') + { + if (fputs ("^_", mbf) == EOF) + return (NOTOK); + line++; + len--; + } + if (fwrite (line, 1, len, mbf) != len) return (NOTOK); if (fputc (0x0a, mbf) == EOF) return (NOTOK); @@ -850,6 +930,7 @@ mbx_delimit_begin (mbf) return (OK); } +int mbx_delimit_end (mbf) FILE *mbf; { @@ -874,3 +955,8 @@ strerror (errnum) } #endif /* ! HAVE_STRERROR */ + +/* arch-tag: 1c323112-41fe-4fe5-8de9-494de631f73f + (do not change this comment) */ + +/* movemail.c ends here */