--- /dev/null
+/*
+** whom.c -- list recipients of message
+**
+** This code is Copyright (c) 2012, by the authors of mmh. See the
+** COPYRIGHT file in the root directory of the nmh distribution for
+** complete copyright information.
+*/
+
+#include <h/mh.h>
+#include <h/addrsbr.h>
+#include <h/fmt_scan.h>
+#include <h/utils.h>
+
+static struct swit switches[] = {
+#define VERSIONSW 0
+ { "Version", 0 },
+#define HELPSW 1
+ { "help", 0 },
+#define TOCCSW 2
+ { "tocc", 0 },
+#define NTOCCSW 3
+ { "notocc", 2 },
+#define BCCSW 4
+ { "bcc", 0 },
+#define NBCCSW 5
+ { "nobcc", 2 },
+#define ALISW 6
+ { "alias", 0 },
+#define NALISW 7
+ { "noalias", 2 },
+ { NULL, 0 }
+};
+
+
+#define NFILES 32
+
+#define HRESENT (1<<1)
+#define HTO (1<<2)
+#define HCC (1<<3)
+#define HBCC (1<<4)
+
+struct mailname head = {0};
+struct mailname *mp = &head;
+
+static char *cmd;
+
+static int resent = 0; /* consider normal or resent headers */
+static int toccsw = 1; /* list sighted recipients */
+static int bccsw = 1; /* list hidden recipients */
+static int alisw = 1; /* expand aliases on rcpt addrs */
+
+static char *separator = "\t==BCC==";
+
+
+/*
+** static prototypes
+*/
+static int process(char *);
+static void proc_hdr(char *, char *);
+static int print(void);
+static int printbcc(void);
+static void printone(struct mailname *);
+
+
+int
+main(int argc, char **argv)
+{
+ int filep=0, naddrs=0, n;
+ char *cp;
+ char buf[BUFSIZ], **argp;
+ char **arguments, *files[NFILES];
+ FILE *in;
+
+ setlocale(LC_ALL, "");
+ 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:
+ adios(NULL, "-%s unknown", cp);
+
+ case HELPSW:
+ snprintf(buf, sizeof(buf),
+ "%s [switches] file ...",
+ invo_name);
+ print_help(buf, switches, 1);
+ done(1);
+ case VERSIONSW:
+ print_version(invo_name);
+ done(1);
+
+ case TOCCSW:
+ toccsw = 1;
+ continue;
+ case NTOCCSW:
+ toccsw = 0;
+ continue;
+
+ case BCCSW:
+ bccsw = 1;
+ continue;
+ case NBCCSW:
+ bccsw = 0;
+ continue;
+
+ case ALISW:
+ alisw = 1;
+ continue;
+ case NALISW:
+ alisw = 0;
+ continue;
+ }
+ }
+ if (filep > NFILES) {
+ adios(NULL, "too many files (more than %d)",
+ NFILES);
+ } else {
+ files[filep++] = cp;
+ }
+ }
+ files[filep] = NULL;
+ if (!filep) {
+ adios(NULL, "usage: %s [switches] file ...", invo_name);
+ }
+ if (!toccsw && !bccsw) {
+ adios(NULL, "give -tocc or -bcc or both to produce output");
+ }
+ for (filep=0; files[filep]; filep++) {
+ process(files[filep]);
+ }
+
+ cmd = add("ali -list", NULL);
+ if ((n=print()) && alisw) {
+ if (!(in = popen(cmd, "r"))) {
+ adios("popen", "unable to");
+ }
+ while (fgets(buf, sizeof buf, in)) {
+ fputs(buf, stdout);
+ }
+ pclose(in);
+ }
+ free(cmd);
+ naddrs += n;
+
+ if (toccsw && bccsw) {
+ puts(separator);
+ }
+
+ cmd = add("ali -list", NULL);
+ if ((n=printbcc()) && alisw) {
+ if (!(in = popen(cmd, "r"))) {
+ adios("popen", "unable to");
+ }
+ while (fgets(buf, sizeof buf, in)) {
+ fputs(buf, stdout);
+ }
+ pclose(in);
+ }
+ free(cmd);
+ naddrs += n;
+ return naddrs ? 0 : 1;
+}
+
+
+static int
+process(char *file)
+{
+ int state, compnum;
+ char *cp;
+ char buf[BUFSIZ], name[NAMESZ];
+ FILE *in;
+
+
+ if ((in = fopen(file, "r")) == NULL) {
+ adios(file, "unable to open");
+ }
+
+ for (compnum = 1, state = FLD;;) {
+ switch (state = m_getfld(state, name, buf, sizeof(buf), in)) {
+ case FLD:
+ compnum++;
+ proc_hdr(name, buf);
+ continue;
+
+ case FLDPLUS:
+ compnum++;
+ cp = add(buf, cp);
+ while (state == FLDPLUS) {
+ state = m_getfld(state, name, buf,
+ sizeof(buf), in);
+ cp = add(buf, cp);
+ }
+ proc_hdr(name, cp);
+ free(cp);
+ continue;
+
+ case BODY:
+ case FILEEOF:
+ break;
+
+ case LENERR:
+ case FMTERR:
+ adios(NULL, "message format error in component #%d",
+ compnum);
+
+ default:
+ adios(NULL, "getfld() returned %d", state);
+ }
+ break;
+ }
+ fclose(in);
+ return 0;
+}
+
+
+/*
+** Check if the header contains addresses we're interested in.
+** If so, extract the addresses and add them to the global list.
+*/
+static void
+proc_hdr(char *name, char *val)
+{
+ char *cp;
+ int type = 0;
+
+ while (*val==' ' || *val=='\t' || *val=='\n') {
+ val++;
+ }
+ if (strncasecmp(name, "resent-", 7)==0) {
+ resent = HRESENT;
+ }
+ if (mh_strcasecmp(name, "to")==0) {
+ type = HTO;
+ } else if (mh_strcasecmp(name, "cc")==0) {
+ type = HCC;
+ } else if (mh_strcasecmp(name, "bcc")==0) {
+ type = HBCC;
+ } else if (mh_strcasecmp(name, "resent-to")==0) {
+ type = (HRESENT | HTO);
+ } else if (mh_strcasecmp(name, "resent-cc")==0) {
+ type = (HRESENT | HCC);
+ } else if (mh_strcasecmp(name, "resent-bcc")==0) {
+ type = (HRESENT | HBCC);
+ }
+ /* ignore non-recpient headers */
+ if (!type) {
+ return;
+ }
+ /* ignore recipient headers we are not interested in */
+ if ((type&HTO || type&HCC) && !toccsw) {
+ return;
+ }
+ if ((type&HBCC) && !bccsw) {
+ return;
+ }
+
+ while ((cp = getname(val))) {
+ if (!(mp->m_next = getm(cp, NULL, 0, AD_NAME, NULL))) {
+ adios(NULL, "illegal address: %s", cp);
+ }
+ mp = mp->m_next;
+ if (mp->m_type == BADHOST) {
+ admonish(NULL, "bad address `%s'", mp->m_text);
+ continue;
+ }
+ mp->m_type = type;
+ }
+}
+
+
+/*
+** Walk through the list of addresses and print the right ones.
+*/
+static int
+print(void)
+{
+ int naddrs = 0;
+
+ for (mp=head.m_next; mp; mp=mp->m_next) {
+ /* skip unless both are resent or neither one is */
+ if (resent != (mp->m_type&HRESENT)) {
+ continue;
+ }
+ if (mp->m_type & (HTO|HCC)) {
+ naddrs++;
+ printone(mp);
+ }
+ }
+ return naddrs;
+}
+
+/*
+** Walk through the list of addresses and print the right ones.
+*/
+static int
+printbcc(void)
+{
+ int naddrs = 0;
+
+ for (mp=head.m_next; mp; mp=mp->m_next) {
+ /* skip unless both are resent or neither one is */
+ if (resent != (mp->m_type&HRESENT)) {
+ continue;
+ }
+ if (mp->m_type & HBCC) {
+ naddrs++;
+ printone(mp);
+ }
+ }
+ return naddrs;
+}
+
+
+/*
+** Print one single address in appropriate form.
+*/
+static void
+printone(struct mailname *mp)
+{
+ char buf[BUFSIZ];
+
+ if (mp->m_host) {
+ snprintf(buf, sizeof buf, " %s@%s", mp->m_mbox, mp->m_host);
+ } else {
+ snprintf(buf, sizeof buf, " %s", mp->m_mbox);
+ }
+ if (alisw) {
+ cmd = add(buf, cmd);
+ } else {
+ puts(buf+1);
+ }
+}
projects / mmh / blobdiff