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authorJunio C Hamano <junkio@cox.net>2005-09-07 19:22:56 (GMT)
committerJunio C Hamano <junkio@cox.net>2005-09-07 19:22:56 (GMT)
commit597c9cc540c2ca5d0b0eeaa3f453dffa14afab6d (patch)
tree612203df758893cbf96fc2fccf9e9b0c858cb717 /tools/mailinfo.c
parentb893f09104ee5f1d8710dfe17cdf1cbac995f17a (diff)
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Flatten tools/ directory to make build procedure simpler.
Also make platform specific part more isolated. Currently we only have Darwin defined, but I've taken a look at SunOS specific patch (which I dropped on the floor for now) as well. Doing things this way would make adding it easier. Signed-off-by: Junio C Hamano <junkio@cox.net>
Diffstat (limited to 'tools/mailinfo.c')
-rw-r--r--tools/mailinfo.c749
1 files changed, 0 insertions, 749 deletions
diff --git a/tools/mailinfo.c b/tools/mailinfo.c
deleted file mode 100644
index df470bb..0000000
--- a/tools/mailinfo.c
+++ /dev/null
@@ -1,749 +0,0 @@
-/*
- * Another stupid program, this one parsing the headers of an
- * email to figure out authorship and subject
- */
-#define _GNU_SOURCE
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <ctype.h>
-#include <iconv.h>
-
-static FILE *cmitmsg, *patchfile;
-
-static int keep_subject = 0;
-static int metainfo_utf8 = 0;
-static char line[1000];
-static char date[1000];
-static char name[1000];
-static char email[1000];
-static char subject[1000];
-
-static enum {
- TE_DONTCARE, TE_QP, TE_BASE64,
-} transfer_encoding;
-static char charset[256];
-
-static char multipart_boundary[1000];
-static int multipart_boundary_len;
-static int patch_lines = 0;
-
-static char *sanity_check(char *name, char *email)
-{
- int len = strlen(name);
- if (len < 3 || len > 60)
- return email;
- if (strchr(name, '@') || strchr(name, '<') || strchr(name, '>'))
- return email;
- return name;
-}
-
-static int handle_from(char *line)
-{
- char *at = strchr(line, '@');
- char *dst;
-
- if (!at)
- return 0;
-
- /*
- * If we already have one email, don't take any confusing lines
- */
- if (*email && strchr(at+1, '@'))
- return 0;
-
- /* Pick up the string around '@', possibly delimited with <>
- * pair; that is the email part. White them out while copying.
- */
- while (at > line) {
- char c = at[-1];
- if (isspace(c))
- break;
- if (c == '<') {
- at[-1] = ' ';
- break;
- }
- at--;
- }
- dst = email;
- for (;;) {
- unsigned char c = *at;
- if (!c || c == '>' || isspace(c)) {
- if (c == '>')
- *at = ' ';
- break;
- }
- *at++ = ' ';
- *dst++ = c;
- }
- *dst++ = 0;
-
- /* The remainder is name. It could be "John Doe <john.doe@xz>"
- * or "john.doe@xz (John Doe)", but we have whited out the
- * email part, so trim from both ends, possibly removing
- * the () pair at the end.
- */
- at = line + strlen(line);
- while (at > line) {
- unsigned char c = *--at;
- if (!isspace(c)) {
- at[(c == ')') ? 0 : 1] = 0;
- break;
- }
- }
-
- at = line;
- for (;;) {
- unsigned char c = *at;
- if (!c || !isspace(c)) {
- if (c == '(')
- at++;
- break;
- }
- at++;
- }
- at = sanity_check(at, email);
- strcpy(name, at);
- return 1;
-}
-
-static int handle_date(char *line)
-{
- strcpy(date, line);
- return 0;
-}
-
-static int handle_subject(char *line)
-{
- strcpy(subject, line);
- return 0;
-}
-
-/* NOTE NOTE NOTE. We do not claim we do full MIME. We just attempt
- * to have enough heuristics to grok MIME encoded patches often found
- * on our mailing lists. For example, we do not even treat header lines
- * case insensitively.
- */
-
-static int slurp_attr(const char *line, const char *name, char *attr)
-{
- char *ends, *ap = strcasestr(line, name);
- size_t sz;
-
- if (!ap) {
- *attr = 0;
- return 0;
- }
- ap += strlen(name);
- if (*ap == '"') {
- ap++;
- ends = "\"";
- }
- else
- ends = "; \t";
- sz = strcspn(ap, ends);
- memcpy(attr, ap, sz);
- attr[sz] = 0;
- return 1;
-}
-
-static int handle_subcontent_type(char *line)
-{
- /* We do not want to mess with boundary. Note that we do not
- * handle nested multipart.
- */
- if (strcasestr(line, "boundary=")) {
- fprintf(stderr, "Not handling nested multipart message.\n");
- exit(1);
- }
- slurp_attr(line, "charset=", charset);
- if (*charset) {
- int i, c;
- for (i = 0; (c = charset[i]) != 0; i++)
- charset[i] = tolower(c);
- }
- return 0;
-}
-
-static int handle_content_type(char *line)
-{
- *multipart_boundary = 0;
- if (slurp_attr(line, "boundary=", multipart_boundary + 2)) {
- memcpy(multipart_boundary, "--", 2);
- multipart_boundary_len = strlen(multipart_boundary);
- }
- slurp_attr(line, "charset=", charset);
- return 0;
-}
-
-static int handle_content_transfer_encoding(char *line)
-{
- if (strcasestr(line, "base64"))
- transfer_encoding = TE_BASE64;
- else if (strcasestr(line, "quoted-printable"))
- transfer_encoding = TE_QP;
- else
- transfer_encoding = TE_DONTCARE;
- return 0;
-}
-
-static int is_multipart_boundary(const char *line)
-{
- return (!memcmp(line, multipart_boundary, multipart_boundary_len));
-}
-
-static int eatspace(char *line)
-{
- int len = strlen(line);
- while (len > 0 && isspace(line[len-1]))
- line[--len] = 0;
- return len;
-}
-
-#define SEEN_FROM 01
-#define SEEN_DATE 02
-#define SEEN_SUBJECT 04
-
-/* First lines of body can have From:, Date:, and Subject: */
-static int handle_inbody_header(int *seen, char *line)
-{
- if (!memcmp("From:", line, 5) && isspace(line[5])) {
- if (!(*seen & SEEN_FROM) && handle_from(line+6)) {
- *seen |= SEEN_FROM;
- return 1;
- }
- }
- if (!memcmp("Date:", line, 5) && isspace(line[5])) {
- if (!(*seen & SEEN_DATE)) {
- handle_date(line+6);
- *seen |= SEEN_DATE;
- return 1;
- }
- }
- if (!memcmp("Subject:", line, 8) && isspace(line[8])) {
- if (!(*seen & SEEN_SUBJECT)) {
- handle_subject(line+9);
- *seen |= SEEN_SUBJECT;
- return 1;
- }
- }
- if (!memcmp("[PATCH]", line, 7) && isspace(line[7])) {
- if (!(*seen & SEEN_SUBJECT)) {
- handle_subject(line);
- *seen |= SEEN_SUBJECT;
- return 1;
- }
- }
- return 0;
-}
-
-static char *cleanup_subject(char *subject)
-{
- if (keep_subject)
- return subject;
- for (;;) {
- char *p;
- int len, remove;
- switch (*subject) {
- case 'r': case 'R':
- if (!memcmp("e:", subject+1, 2)) {
- subject +=3;
- continue;
- }
- break;
- case ' ': case '\t': case ':':
- subject++;
- continue;
-
- case '[':
- p = strchr(subject, ']');
- if (!p) {
- subject++;
- continue;
- }
- len = strlen(p);
- remove = p - subject;
- if (remove <= len *2) {
- subject = p+1;
- continue;
- }
- break;
- }
- return subject;
- }
-}
-
-static void cleanup_space(char *buf)
-{
- unsigned char c;
- while ((c = *buf) != 0) {
- buf++;
- if (isspace(c)) {
- buf[-1] = ' ';
- c = *buf;
- while (isspace(c)) {
- int len = strlen(buf);
- memmove(buf, buf+1, len);
- c = *buf;
- }
- }
- }
-}
-
-typedef int (*header_fn_t)(char *);
-struct header_def {
- const char *name;
- header_fn_t func;
- int namelen;
-};
-
-static void check_header(char *line, int len, struct header_def *header)
-{
- int i;
-
- if (header[0].namelen <= 0) {
- for (i = 0; header[i].name; i++)
- header[i].namelen = strlen(header[i].name);
- }
- for (i = 0; header[i].name; i++) {
- int len = header[i].namelen;
- if (!strncasecmp(line, header[i].name, len) &&
- line[len] == ':' && isspace(line[len + 1])) {
- header[i].func(line + len + 2);
- break;
- }
- }
-}
-
-static void check_subheader_line(char *line, int len)
-{
- static struct header_def header[] = {
- { "Content-Type", handle_subcontent_type },
- { "Content-Transfer-Encoding",
- handle_content_transfer_encoding },
- { NULL },
- };
- check_header(line, len, header);
-}
-static void check_header_line(char *line, int len)
-{
- static struct header_def header[] = {
- { "From", handle_from },
- { "Date", handle_date },
- { "Subject", handle_subject },
- { "Content-Type", handle_content_type },
- { "Content-Transfer-Encoding",
- handle_content_transfer_encoding },
- { NULL },
- };
- check_header(line, len, header);
-}
-
-static int read_one_header_line(char *line, int sz, FILE *in)
-{
- int ofs = 0;
- while (ofs < sz) {
- int peek, len;
- if (fgets(line + ofs, sz - ofs, in) == NULL)
- return ofs;
- len = eatspace(line + ofs);
- if (len == 0)
- return ofs;
- peek = fgetc(in); ungetc(peek, in);
- if (peek == ' ' || peek == '\t') {
- /* Yuck, 2822 header "folding" */
- ofs += len;
- continue;
- }
- return ofs + len;
- }
- return ofs;
-}
-
-static unsigned hexval(int c)
-{
- if (c >= '0' && c <= '9')
- return c - '0';
- if (c >= 'a' && c <= 'f')
- return c - 'a' + 10;
- if (c >= 'A' && c <= 'F')
- return c - 'A' + 10;
- return ~0;
-}
-
-static int decode_q_segment(char *in, char *ot, char *ep)
-{
- int c;
- while ((c = *in++) != 0 && (in <= ep)) {
- if (c == '=') {
- int d = *in++;
- if (d == '\n' || !d)
- break; /* drop trailing newline */
- *ot++ = ((hexval(d) << 4) | hexval(*in++));
- }
- else
- *ot++ = c;
- }
- *ot = 0;
- return 0;
-}
-
-static int decode_b_segment(char *in, char *ot, char *ep)
-{
- /* Decode in..ep, possibly in-place to ot */
- int c, pos = 0, acc = 0;
-
- while ((c = *in++) != 0 && (in <= ep)) {
- if (c == '+')
- c = 62;
- else if (c == '/')
- c = 63;
- else if ('A' <= c && c <= 'Z')
- c -= 'A';
- else if ('a' <= c && c <= 'z')
- c -= 'a' - 26;
- else if ('0' <= c && c <= '9')
- c -= '0' - 52;
- else if (c == '=') {
- /* padding is almost like (c == 0), except we do
- * not output NUL resulting only from it;
- * for now we just trust the data.
- */
- c = 0;
- }
- else
- continue; /* garbage */
- switch (pos++) {
- case 0:
- acc = (c << 2);
- break;
- case 1:
- *ot++ = (acc | (c >> 4));
- acc = (c & 15) << 4;
- break;
- case 2:
- *ot++ = (acc | (c >> 2));
- acc = (c & 3) << 6;
- break;
- case 3:
- *ot++ = (acc | c);
- acc = pos = 0;
- break;
- }
- }
- *ot = 0;
- return 0;
-}
-
-static void convert_to_utf8(char *line, char *charset)
-{
- if (*charset) {
- char *in, *out;
- size_t insize, outsize, nrc;
- char outbuf[4096]; /* cheat */
- iconv_t conv = iconv_open("utf-8", charset);
-
- if (conv == (iconv_t) -1) {
- fprintf(stderr, "cannot convert from %s to utf-8\n",
- charset);
- *charset = 0;
- return;
- }
- in = line;
- insize = strlen(in);
- out = outbuf;
- outsize = sizeof(outbuf);
- nrc = iconv(conv, &in, &insize, &out, &outsize);
- iconv_close(conv);
- if (nrc == (size_t) -1)
- return;
- *out = 0;
- strcpy(line, outbuf);
- }
-}
-
-static void decode_header_bq(char *it)
-{
- char *in, *out, *ep, *cp, *sp;
- char outbuf[1000];
-
- in = it;
- out = outbuf;
- while ((ep = strstr(in, "=?")) != NULL) {
- int sz, encoding;
- char charset_q[256], piecebuf[256];
- if (in != ep) {
- sz = ep - in;
- memcpy(out, in, sz);
- out += sz;
- in += sz;
- }
- /* E.g.
- * ep : "=?iso-2022-jp?B?GyR...?= foo"
- * ep : "=?ISO-8859-1?Q?Foo=FCbar?= baz"
- */
- ep += 2;
- cp = strchr(ep, '?');
- if (!cp)
- return; /* no munging */
- for (sp = ep; sp < cp; sp++)
- charset_q[sp - ep] = tolower(*sp);
- charset_q[cp - ep] = 0;
- encoding = cp[1];
- if (!encoding || cp[2] != '?')
- return; /* no munging */
- ep = strstr(cp + 3, "?=");
- if (!ep)
- return; /* no munging */
- switch (tolower(encoding)) {
- default:
- return; /* no munging */
- case 'b':
- sz = decode_b_segment(cp + 3, piecebuf, ep);
- break;
- case 'q':
- sz = decode_q_segment(cp + 3, piecebuf, ep);
- break;
- }
- if (sz < 0)
- return;
- if (metainfo_utf8)
- convert_to_utf8(piecebuf, charset_q);
- strcpy(out, piecebuf);
- out += strlen(out);
- in = ep + 2;
- }
- strcpy(out, in);
- strcpy(it, outbuf);
-}
-
-static void decode_transfer_encoding(char *line)
-{
- char *ep;
-
- switch (transfer_encoding) {
- case TE_QP:
- ep = line + strlen(line);
- decode_q_segment(line, line, ep);
- break;
- case TE_BASE64:
- ep = line + strlen(line);
- decode_b_segment(line, line, ep);
- break;
- case TE_DONTCARE:
- break;
- }
-}
-
-static void handle_info(void)
-{
- char *sub;
- static int done_info = 0;
-
- if (done_info)
- return;
-
- done_info = 1;
- sub = cleanup_subject(subject);
- cleanup_space(name);
- cleanup_space(date);
- cleanup_space(email);
- cleanup_space(sub);
-
- /* Unwrap inline B and Q encoding, and optionally
- * normalize the meta information to utf8.
- */
- decode_header_bq(name);
- decode_header_bq(date);
- decode_header_bq(email);
- decode_header_bq(sub);
- printf("Author: %s\nEmail: %s\nSubject: %s\nDate: %s\n\n",
- name, email, sub, date);
-}
-
-/* We are inside message body and have read line[] already.
- * Spit out the commit log.
- */
-static int handle_commit_msg(void)
-{
- if (!cmitmsg)
- return 0;
- do {
- if (!memcmp("diff -", line, 6) ||
- !memcmp("---", line, 3) ||
- !memcmp("Index: ", line, 7))
- break;
- if ((multipart_boundary[0] && is_multipart_boundary(line))) {
- /* We come here when the first part had only
- * the commit message without any patch. We
- * pretend we have not seen this line yet, and
- * go back to the loop.
- */
- return 1;
- }
-
- /* Unwrap transfer encoding and optionally
- * normalize the log message to UTF-8.
- */
- decode_transfer_encoding(line);
- if (metainfo_utf8)
- convert_to_utf8(line, charset);
- fputs(line, cmitmsg);
- } while (fgets(line, sizeof(line), stdin) != NULL);
- fclose(cmitmsg);
- cmitmsg = NULL;
- return 0;
-}
-
-/* We have done the commit message and have the first
- * line of the patch in line[].
- */
-static void handle_patch(void)
-{
- do {
- if (multipart_boundary[0] && is_multipart_boundary(line))
- break;
- /* Only unwrap transfer encoding but otherwise do not
- * do anything. We do *NOT* want UTF-8 conversion
- * here; we are dealing with the user payload.
- */
- decode_transfer_encoding(line);
- fputs(line, patchfile);
- patch_lines++;
- } while (fgets(line, sizeof(line), stdin) != NULL);
-}
-
-/* multipart boundary and transfer encoding are set up for us, and we
- * are at the end of the sub header. do equivalent of handle_body up
- * to the next boundary without closing patchfile --- we will expect
- * that the first part to contain commit message and a patch, and
- * handle other parts as pure patches.
- */
-static int handle_multipart_one_part(void)
-{
- int seen = 0;
- int n = 0;
- int len;
-
- while (fgets(line, sizeof(line), stdin) != NULL) {
- again:
- len = eatspace(line);
- n++;
- if (!len)
- continue;
- if (is_multipart_boundary(line))
- break;
- if (0 <= seen && handle_inbody_header(&seen, line))
- continue;
- seen = -1; /* no more inbody headers */
- line[len] = '\n';
- handle_info();
- if (handle_commit_msg())
- goto again;
- handle_patch();
- break;
- }
- if (n == 0)
- return -1;
- return 0;
-}
-
-static void handle_multipart_body(void)
-{
- int part_num = 0;
-
- /* Skip up to the first boundary */
- while (fgets(line, sizeof(line), stdin) != NULL)
- if (is_multipart_boundary(line)) {
- part_num = 1;
- break;
- }
- if (!part_num)
- return;
- /* We are on boundary line. Start slurping the subhead. */
- while (1) {
- int len = read_one_header_line(line, sizeof(line), stdin);
- if (!len) {
- if (handle_multipart_one_part() < 0)
- return;
- }
- else
- check_subheader_line(line, len);
- }
- fclose(patchfile);
- if (!patch_lines) {
- fprintf(stderr, "No patch found\n");
- exit(1);
- }
-}
-
-/* Non multipart message */
-static void handle_body(void)
-{
- int seen = 0;
-
- while (fgets(line, sizeof(line), stdin) != NULL) {
- int len = eatspace(line);
- if (!len)
- continue;
- if (0 <= seen && handle_inbody_header(&seen, line))
- continue;
- seen = -1; /* no more inbody headers */
- line[len] = '\n';
- handle_info();
- handle_commit_msg();
- handle_patch();
- break;
- }
- fclose(patchfile);
- if (!patch_lines) {
- fprintf(stderr, "No patch found\n");
- exit(1);
- }
-}
-
-static const char mailinfo_usage[] =
- "git-mailinfo [-k] [-u] msg patch <mail >info";
-
-static void usage(void) {
- fprintf(stderr, "%s\n", mailinfo_usage);
- exit(1);
-}
-
-int main(int argc, char **argv)
-{
- while (1 < argc && argv[1][0] == '-') {
- if (!strcmp(argv[1], "-k"))
- keep_subject = 1;
- else if (!strcmp(argv[1], "-u"))
- metainfo_utf8 = 1;
- else
- usage();
- argc--; argv++;
- }
-
- if (argc != 3)
- usage();
- cmitmsg = fopen(argv[1], "w");
- if (!cmitmsg) {
- perror(argv[1]);
- exit(1);
- }
- patchfile = fopen(argv[2], "w");
- if (!patchfile) {
- perror(argv[2]);
- exit(1);
- }
- while (1) {
- int len = read_one_header_line(line, sizeof(line), stdin);
- if (!len) {
- if (multipart_boundary[0])
- handle_multipart_body();
- else
- handle_body();
- break;
- }
- check_header_line(line, len);
- }
- return 0;
-}