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117 lines
2.1 KiB
C
117 lines
2.1 KiB
C
8 years ago
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <ctype.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 qflag;
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static int vflag;
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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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int
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match(char *file, char *s)
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{
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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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if (!cflag)
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printf("%s\n", file);
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matches++;
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return 1;
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}
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return 0;
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}
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void
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magrep(char *file)
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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, 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, addr))
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break;
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}
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} else {
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match(file, 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, "acdiqv")) != -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 '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|-q] [-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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*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)
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printf("%ld\n", matches);
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return !matches;
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}
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