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215 lines
4.2 KiB
C
215 lines
4.2 KiB
C
#include <sys/stat.h>
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#include <sys/types.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <regex.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "blaze822.h"
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static int aflag;
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static int cflag;
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static int dflag;
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static int iflag;
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static int oflag;
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static int pflag;
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static int qflag;
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static int vflag;
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static long mflag;
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static long matches;
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static regex_t pattern;
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static char *header;
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static char *curfile;
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int
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match(char *file, char *hdr, char *s)
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{
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if (oflag && !cflag && !qflag && !vflag) {
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regmatch_t pmatch;
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int len, matched;
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matched = 0;
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while (*s && regexec(&pattern, s, 1, &pmatch, 0) == 0) {
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s += pmatch.rm_so;
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if (!(len = pmatch.rm_eo-pmatch.rm_so)) {
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s += 1;
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continue;
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}
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if (pflag)
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printf("%s: %s: ", file, hdr);
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printf("%.*s\n", len, s);
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s += len;
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matched++;
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}
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return (matched && matches++);
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} else if (vflag ^ (regexec(&pattern, s, 0, 0, 0) == 0)) {
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if (qflag)
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exit(0);
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matches++;
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if (!cflag) {
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printf("%s", file);
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if (pflag && !vflag)
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printf(": %s: %s", hdr, s);
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putchar('\n');
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}
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if (mflag && matches >= mflag)
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exit(0);
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return 1;
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}
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return 0;
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}
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blaze822_mime_action
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match_part(int depth, struct message *msg, char *body, size_t bodylen)
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{
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(void)depth;
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char *ct = blaze822_hdr(msg, "content-type");
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blaze822_mime_action r = MIME_CONTINUE;
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if (!ct || strncmp(ct, "text/plain", 10) == 0) {
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char *charset = 0, *cs, *cse;
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if (blaze822_mime_parameter(ct, "charset", &cs, &cse))
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charset = strndup(cs, cse-cs);
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if (!charset ||
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strcasecmp(charset, "utf-8") == 0 ||
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strcasecmp(charset, "utf8") == 0 ||
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strcasecmp(charset, "us-ascii") == 0) {
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if (pflag && !cflag && !oflag && !vflag) {
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char *s, *p;
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for (p = s = body; p < body+bodylen+1; p++) {
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if (*p == '\r' || *p == '\n') {
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*p = 0;
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if (p-s > 1)
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match(curfile, "/", s);
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s = p+1;
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}
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}
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} else if (match(curfile, "/", body)) {
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r = MIME_STOP;
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}
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} else {
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/* XXX decode here */
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}
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free(charset);
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}
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return r;
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}
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void
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match_body(char *file)
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{
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char *filename;
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filename = curfile = file;
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while (*filename == ' ' || *filename == '\t')
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filename++;
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struct message *msg = blaze822_file(filename);
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if (!msg)
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return;
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blaze822_walk_mime(msg, 0, match_part);
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}
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void
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magrep(char *file)
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{
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if (!*header) {
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char *flags = strstr(file, ":2,");
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if (flags)
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match(file, "flags", flags+3);
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return;
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} else if (strcmp(header, "/") == 0) {
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match_body(file);
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return;
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}
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char *filename = file;
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while (*filename == ' ' || *filename == '\t')
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filename++;
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struct message *msg = blaze822(filename);
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if (!msg)
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return;
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char *v = blaze822_chdr(msg, header);
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if (v) {
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if (dflag) {
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char d[4096];
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blaze822_decode_rfc2047(d, v, sizeof d, "UTF-8");
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match(file, header, d);
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} else if (aflag) {
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char *disp, *addr;
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while ((v = blaze822_addr(v, &disp, &addr))) {
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if (addr && match(file, header, addr))
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break;
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}
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} else {
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match(file, header, v);
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}
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}
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blaze822_free(msg);
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}
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int
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main(int argc, char *argv[])
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{
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int c;
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while ((c = getopt(argc, argv, "acdim:opqv")) != -1)
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switch (c) {
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case 'a': aflag = 1; break;
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case 'c': cflag = 1; break;
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case 'd': dflag = 1; break;
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case 'i': iflag = REG_ICASE; break;
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case 'm': mflag = atol(optarg); break;
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case 'o': oflag = 1; break;
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case 'p': pflag = 1; break;
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case 'q': qflag = 1; break;
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case 'v': vflag = 1; break;
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default:
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usage:
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fprintf(stderr,
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"Usage: magrep [-c|-o|-p|-q|-m max] [-v] [-i] [-a|-d] header:regex [msgs...]\n");
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exit(2);
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}
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if (argc == optind)
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goto usage;
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header = argv[optind++];
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char *rx = strchr(header, ':');
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if (!rx)
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goto usage;
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if (pledge("stdio rpath tty", NULL) == -1)
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err(1, "pledge");
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*rx++ = 0;
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int r = regcomp(&pattern, rx, REG_EXTENDED | iflag);
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if (r != 0) {
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char buf[256];
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regerror(r, &pattern, buf, sizeof buf);
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fprintf(stderr, "magrep: regex error: %s\n", buf);
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exit(2);
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}
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if (argc == optind && isatty(0))
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blaze822_loop1(":", magrep);
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else
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blaze822_loop(argc-optind, argv+optind, magrep);
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if (cflag && !qflag && !mflag)
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printf("%ld\n", matches);
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return !matches;
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}
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