-
/*
- * rcvtty.c -- a rcvmail program (a lot like rcvalert) handling IPC ttys
- *
- * $Id$
- */
+** rcvtty.c -- a rcvmail program (a lot like rcvalert) handling IPC ttys
+**
+** 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.
+*/
/* Changed to use getutent() and friends. Assumes that when getutent() exists,
- * a number of other things also exist. Please check.
- * Ruud de Rooij <ruud@ruud.org> Sun, 28 May 2000 17:28:55 +0200
- */
+** a number of other things also exist. Please check.
+** Ruud de Rooij <ruud@ruud.org> Sun, 28 May 2000 17:28:55 +0200
+*/
#include <h/mh.h>
#include <h/signals.h>
#include <h/rcvmail.h>
#include <h/scansbr.h>
#include <h/tws.h>
-#include <zotnet/mts/mts.h>
#include <signal.h>
#include <fcntl.h>
# endif
#endif
-#define SCANFMT \
+#define SCANFMT \
"%2(hour{dtimenow}):%02(min{dtimenow}): %<(size)%5(size) %>%<{encrypted}E%>\
%<(mymbox{from})%<{to}To:%14(friendly{to})%>%>%<(zero)%17(friendly{from})%> \
-%{subject}%<{body}<<%{body}>>%>"
+%{subject}"
static struct swit switches[] = {
-#define BIFFSW 0
- { "biff", 0 },
-#define FORMSW 1
- { "form formatfile", 0 },
-#define FMTSW 2
- { "format string", 5 },
+#define BIFFSW 0
+ { "biff", 0 },
+#define FORMSW 1
+ { "form formatfile", 0 },
+#define FMTSW 2
+ { "format string", 5 },
#define WIDTHSW 3
- { "width columns", 0 },
-#define NLSW 4
- { "newline", 0 },
+ { "width columns", 0 },
+#define NLSW 4
+ { "newline", 0 },
#define NNLSW 5
- { "nonewline", 0 },
-#define BELSW 6
- { "bell", 0 },
-#define NBELSW 7
- { "nobell", 0 },
+ { "nonewline", 0 },
+#define BELSW 6
+ { "bell", 0 },
+#define NBELSW 7
+ { "nobell", 0 },
#define VERSIONSW 8
- { "version", 0 },
-#define HELPSW 9
- { "help", 0 },
- { NULL, 0 }
+ { "version", 0 },
+#define HELPSW 9
+ { "help", 0 },
+ { NULL, 0 }
};
static jmp_buf myctx;
static char *format = NULL;
/*
- * external prototypes
- */
-char *getusername(void);
-
-/*
- * static prototypes
- */
-static RETSIGTYPE alrmser (int);
-static int message_fd (char **);
-static int header_fd (void);
-static void alert (char *, int);
+** static prototypes
+*/
+static RETSIGTYPE alrmser(int);
+static int message_fd(char **);
+static int header_fd(void);
+static void alert(char *, int);
int
-main (int argc, char **argv)
+main(int argc, char **argv)
{
- int md, vecp = 0;
- char *cp, *user, buf[BUFSIZ], tty[BUFSIZ];
- char **argp, **arguments, *vec[MAXARGS];
+ int md, vecp = 0;
+ char *cp, *user, buf[BUFSIZ], tty[BUFSIZ];
+ char **argp, **arguments, *vec[MAXARGS];
#ifdef HAVE_GETUTENT
- struct utmp * utp;
+ struct utmp * utp;
#else
- struct utmp ut;
- register FILE *uf;
+ struct utmp ut;
+ register FILE *uf;
#endif
#ifdef LOCALE
- setlocale(LC_ALL, "");
+ setlocale(LC_ALL, "");
#endif
- invo_name = r1bindex (argv[0], '/');
-
- /* read user profile/context */
- context_read();
-
- mts_init (invo_name);
- arguments = getarguments (invo_name, argc, argv, 1);
- argp = arguments;
-
- while ((cp = *argp++)) {
- if (*cp == '-') {
- switch (smatch (++cp, switches)) {
- case AMBIGSW:
- ambigsw (cp, switches);
- done (1);
- case UNKWNSW:
- vec[vecp++] = --cp;
- continue;
-
- case HELPSW:
- snprintf (buf, sizeof(buf), "%s [command ...]", invo_name);
- print_help (buf, switches, 1);
- done (1);
- case VERSIONSW:
- print_version(invo_name);
- done (1);
-
- case BIFFSW:
- biff = 1;
- continue;
-
- case FORMSW:
- if (!(form = *argp++) || *form == '-')
- adios (NULL, "missing argument to %s", argp[-2]);
- format = NULL;
- continue;
- case FMTSW:
- if (!(format = *argp++) || *format == '-')
- adios (NULL, "missing argument to %s", argp[-2]);
- form = NULL;
- continue;
-
- case WIDTHSW:
- if (!(cp = *argp++) || *cp == '-')
- adios(NULL, "missing argument to %s", argp[-2]);
- width = atoi(cp);
- continue;
- case NLSW:
- newline = 1;
- continue;
- case NNLSW:
- newline = 0;
- continue;
- case BELSW:
- bell = 1;
- continue;
- case NBELSW:
- bell = 0;
- continue;
-
- }
+ invo_name = mhbasename(argv[0]);
+
+ /* read user profile/context */
+ context_read();
+
+ arguments = getarguments(invo_name, argc, argv, 1);
+ argp = arguments;
+
+ while ((cp = *argp++)) {
+ if (*cp == '-') {
+ switch (smatch(++cp, switches)) {
+ case AMBIGSW:
+ ambigsw(cp, switches);
+ done(1);
+ case UNKWNSW:
+ vec[vecp++] = --cp;
+ continue;
+
+ case HELPSW:
+ snprintf(buf, sizeof(buf), "%s [command ...]",
+ invo_name);
+ print_help(buf, switches, 1);
+ done(1);
+ case VERSIONSW:
+ print_version(invo_name);
+ done(1);
+
+ case BIFFSW:
+ biff = 1;
+ continue;
+
+ case FORMSW:
+ if (!(form = *argp++) || *form == '-')
+ adios(NULL, "missing argument to %s",
+ argp[-2]);
+ format = NULL;
+ continue;
+ case FMTSW:
+ if (!(format = *argp++) || *format == '-')
+ adios(NULL, "missing argument to %s",
+ argp[-2]);
+ form = NULL;
+ continue;
+
+ case WIDTHSW:
+ if (!(cp = *argp++) || *cp == '-')
+ adios(NULL, "missing argument to %s",
+ argp[-2]);
+ width = atoi(cp);
+ continue;
+ case NLSW:
+ newline = 1;
+ continue;
+ case NNLSW:
+ newline = 0;
+ continue;
+ case BELSW:
+ bell = 1;
+ continue;
+ case NBELSW:
+ bell = 0;
+ continue;
+
+ }
+ }
+ vec[vecp++] = cp;
}
- vec[vecp++] = cp;
- }
- vec[vecp] = 0;
+ vec[vecp] = 0;
- if ((md = vecp ? message_fd (vec) : header_fd ()) == NOTOK)
- exit (RCV_MBX);
+ if ((md = vecp ? message_fd(vec) : header_fd()) == NOTOK)
+ exit(RCV_MBX);
- user = getusername();
+ user = getusername();
#ifdef HAVE_GETUTENT
- setutent();
- while ((utp = getutent()) != NULL) {
- if (utp->ut_type == USER_PROCESS
- && utp->ut_user[0] != 0
- && utp->ut_line[0] != 0
- && strncmp (user, utp->ut_user, sizeof(utp->ut_user)) == 0) {
- strncpy (tty, utp->ut_line, sizeof(utp->ut_line));
- alert (tty, md);
- }
- }
- endutent();
-#else
- if ((uf = fopen (UTMP_FILE, "r")) == NULL)
- exit (RCV_MBX);
- while (fread ((char *) &ut, sizeof(ut), 1, uf) == 1)
- if (ut.ut_name[0] != 0
- && strncmp (user, ut.ut_name, sizeof(ut.ut_name)) == 0) {
- strncpy (tty, ut.ut_line, sizeof(ut.ut_line));
- alert (tty, md);
+ setutent();
+ while ((utp = getutent()) != NULL) {
+ if (
+#ifdef HAVE_STRUCT_UTMP_UT_TYPE
+ utp->ut_type == USER_PROCESS &&
+#endif
+ utp->ut_name[0] != 0 && utp->ut_line[0] != 0
+ && strncmp(user, utp->ut_name,
+ sizeof(utp->ut_name)) == 0) {
+ strncpy(tty, utp->ut_line, sizeof(utp->ut_line));
+ alert(tty, md);
+ }
}
- fclose (uf);
+ endutent();
+#else
+ if ((uf = fopen(UTMP_FILE, "r")) == NULL)
+ exit(RCV_MBX);
+ while (fread((char *) &ut, sizeof(ut), 1, uf) == 1)
+ if (ut.ut_name[0] != 0 &&
+ strncmp(user, ut.ut_name, sizeof(ut.ut_name))
+ == 0) {
+ strncpy(tty, ut.ut_line, sizeof(ut.ut_line));
+ alert(tty, md);
+ }
+ fclose(uf);
#endif
- exit (RCV_MOK);
- return 0; /* dead code to satisfy the compiler */
+ exit(RCV_MOK);
+ return 0; /* dead code to satisfy the compiler */
}
static RETSIGTYPE
-alrmser (int i)
+alrmser(int i)
{
#ifndef RELIABLE_SIGNALS
- SIGNAL (SIGALRM, alrmser);
+ SIGNAL(SIGALRM, alrmser);
#endif
- longjmp (myctx, 1);
+ longjmp(myctx, 1);
}
static int
-message_fd (char **vec)
+message_fd(char **vec)
{
- pid_t child_id;
- int bytes, fd, seconds;
- char tmpfil[BUFSIZ];
- struct stat st;
+ pid_t child_id;
+ int bytes, fd, seconds;
+ char tmpfil[BUFSIZ];
+ struct stat st;
#ifdef HAVE_MKSTEMP
- fd = mkstemp (strncpy (tmpfil, "/tmp/rcvttyXXXXX", sizeof(tmpfil)));
+ fd = mkstemp(strncpy(tmpfil, "/tmp/rcvttyXXXXX", sizeof(tmpfil)));
#else
- unlink (mktemp (strncpy (tmpfil, "/tmp/rcvttyXXXXX", sizeof(tmpfil))));
- if ((fd = open (tmpfil, O_RDWR | O_CREAT | O_TRUNC, 0600)) == NOTOK)
- return header_fd ();
+ unlink(mktemp(strncpy(tmpfil, "/tmp/rcvttyXXXXX", sizeof(tmpfil))));
+ if ((fd = open(tmpfil, O_RDWR | O_CREAT | O_TRUNC, 0600)) == NOTOK)
+ return header_fd();
#endif
- unlink (tmpfil);
-
- if ((child_id = vfork()) == NOTOK) {
- /* fork error */
- close (fd);
- return header_fd ();
- } else if (child_id) {
- /* parent process */
- if (!setjmp (myctx)) {
- SIGNAL (SIGALRM, alrmser);
- bytes = fstat(fileno (stdin), &st) != NOTOK ? (int) st.st_size : 100;
-
- /* amount of time to wait depends on message size */
- if (bytes <= 100) {
- /* give at least 5 minutes */
- seconds = 300;
- } else if (bytes >= 90000) {
- /* but 30 minutes should be long enough */
- seconds = 1800;
- } else {
- seconds = (bytes / 60) + 300;
- }
- alarm ((unsigned int) seconds);
- pidwait(child_id, OK);
- alarm (0);
-
- if (fstat (fd, &st) != NOTOK && st.st_size > (off_t) 0)
- return fd;
- } else {
- /*
- * Ruthlessly kill the child and anything
- * else in its process group.
- */
- KILLPG(child_id, SIGKILL);
+ unlink(tmpfil);
+
+ if ((child_id = fork()) == NOTOK) {
+ /* fork error */
+ close(fd);
+ return header_fd();
+ } else if (child_id) {
+ /* parent process */
+ if (!setjmp(myctx)) {
+ SIGNAL(SIGALRM, alrmser);
+ bytes = fstat(fileno(stdin), &st) != NOTOK ?
+ (int) st.st_size : 100;
+
+ /* amount of time to wait depends on message size */
+ if (bytes <= 100) {
+ /* give at least 5 minutes */
+ seconds = 300;
+ } else if (bytes >= 90000) {
+ /* but 30 minutes should be long enough */
+ seconds = 1800;
+ } else {
+ seconds = (bytes / 60) + 300;
+ }
+ alarm((unsigned int) seconds);
+ pidwait(child_id, OK);
+ alarm(0);
+
+ if (fstat(fd, &st) != NOTOK && st.st_size > (off_t) 0)
+ return fd;
+ } else {
+ /*
+ ** Ruthlessly kill the child and anything
+ ** else in its process group.
+ */
+ KILLPG(child_id, SIGKILL);
+ }
+ close(fd);
+ return header_fd();
}
- close (fd);
- return header_fd ();
- }
-
- /* child process */
- rewind (stdin);
- if (dup2 (fd, 1) == NOTOK || dup2 (fd, 2) == NOTOK)
- _exit (-1);
- closefds (3);
- setpgid ((pid_t) 0, getpid ()); /* put in own process group */
- execvp (vec[0], vec);
- _exit (-1);
- return 1; /* dead code to satisfy compiler */
+
+ /* child process */
+ rewind(stdin);
+ if (dup2(fd, 1) == NOTOK || dup2(fd, 2) == NOTOK)
+ _exit(-1);
+ closefds(3);
+ setpgid((pid_t) 0, getpid()); /* put in own process group */
+ execvp(vec[0], vec);
+ _exit(-1);
+ return 1; /* dead code to satisfy compiler */
}
static int
-header_fd (void)
+header_fd(void)
{
- int fd;
- char *nfs, tmpfil[BUFSIZ];
-
- strncpy (tmpfil, m_tmpfil (invo_name), sizeof(tmpfil));
- if ((fd = open (tmpfil, O_RDWR | O_CREAT | O_TRUNC, 0600)) == NOTOK)
- return NOTOK;
- unlink (tmpfil);
-
- rewind (stdin);
-
- /* get new format string */
- nfs = new_fs (form, format, SCANFMT);
- scan (stdin, 0, 0, nfs, width, 0, 0, NULL, 0L, 0);
- if (newline)
- write (fd, "\n\r", 2);
- write (fd, scanl, strlen (scanl));
- if (bell)
- write (fd, "\007", 1);
-
- return fd;
+ int fd;
+ char *nfs;
+ char *tfile = NULL;
+
+ tfile = m_mktemp2(NULL, invo_name, &fd, NULL);
+ if (tfile == NULL) return NOTOK;
+ unlink(tfile);
+
+ rewind(stdin);
+
+ /* get new format string */
+ nfs = new_fs(form, format, NULL, SCANFMT);
+ scan(stdin, 0, 0, nfs, width, 0, 0, NULL, 0L, 0);
+ if (newline)
+ write(fd, "\n\r", 2);
+ write(fd, scanl, strlen(scanl));
+ if (bell)
+ write(fd, "\007", 1);
+
+ return fd;
}
static void
-alert (char *tty, int md)
+alert(char *tty, int md)
{
- int i, td, mask;
- char buffer[BUFSIZ], ttyspec[BUFSIZ];
- struct stat st;
-
- snprintf (ttyspec, sizeof(ttyspec), "/dev/%s", tty);
-
- /*
- * The mask depends on whether we are checking for
- * write permission based on `biff' or `mesg'.
- */
- mask = biff ? S_IEXEC : (S_IWRITE >> 3);
- if (stat (ttyspec, &st) == NOTOK || (st.st_mode & mask) == 0)
- return;
-
- if (!setjmp (myctx)) {
- SIGNAL (SIGALRM, alrmser);
- alarm (2);
- td = open (ttyspec, O_WRONLY);
- alarm (0);
- if (td == NOTOK)
- return;
- } else {
- alarm (0);
- return;
- }
-
- lseek (md, (off_t) 0, SEEK_SET);
-
- while ((i = read (md, buffer, sizeof(buffer))) > 0)
- if (write (td, buffer, i) != i)
- break;
-
- close (td);
-}
+ int i, td, mask;
+ char buffer[BUFSIZ], ttyspec[BUFSIZ];
+ struct stat st;
+
+ snprintf(ttyspec, sizeof(ttyspec), "/dev/%s", tty);
+
+ /*
+ ** The mask depends on whether we are checking for
+ ** write permission based on `biff' or `mesg'.
+ */
+ mask = biff ? S_IEXEC : (S_IWRITE >> 3);
+ if (stat(ttyspec, &st) == NOTOK || (st.st_mode & mask) == 0)
+ return;
+
+ if (!setjmp(myctx)) {
+ SIGNAL(SIGALRM, alrmser);
+ alarm(2);
+ td = open(ttyspec, O_WRONLY);
+ alarm(0);
+ if (td == NOTOK)
+ return;
+ } else {
+ alarm(0);
+ return;
+ }
+ lseek(md, (off_t) 0, SEEK_SET);
+
+ while ((i = read(md, buffer, sizeof(buffer))) > 0)
+ if (write(td, buffer, i) != i)
+ break;
+
+ close(td);
+}
projects / mmh / blobdiff