From 3a7cba95b74dd2460f8b9bf4f7cefa3c21d31fdd Mon Sep 17 00:00:00 2001 From: Jeff King Date: Mon, 19 Oct 2009 17:42:02 +0200 Subject: imap-send: remove useless uid code The imap-send code is based on code from isync, a program for syncing imap mailboxes. Because of this, it has inherited some code that makes sense for isync, but not for imap-send. In particular, when storing a message, it does one of: - if the server supports it, note the server-assigned unique identifier (UID) given to each message - otherwise, assigned a random UID and store it in the message header as X-TUID Presumably this is used in isync to be able to synchronize mailstores multiple times without duplication. But for imap-send, the values are useless; we never do anything with them and simply forget them at the end of the program. This patch removes the useless code. Not only is it nice for maintainability to get rid of dead code, but the removed code relied on the existence of /dev/urandom, which made it a portability problem for non-Unix platforms. Signed-off-by: Jeff King Signed-off-by: Erik Faye-Lund Signed-off-by: Junio C Hamano --- imap-send.c | 155 +++++------------------------------------------------------- 1 file changed, 11 insertions(+), 144 deletions(-) (limited to 'imap-send.c') diff --git a/imap-send.c b/imap-send.c index 3847fd151d..8da7a94931 100644 --- a/imap-send.c +++ b/imap-send.c @@ -123,9 +123,6 @@ static int nfvasprintf(char **strp, const char *fmt, va_list ap) return len; } -static void arc4_init(void); -static unsigned char arc4_getbyte(void); - struct imap_server_conf { char *name; char *tunnel; @@ -489,52 +486,6 @@ static int nfsnprintf(char *buf, int blen, const char *fmt, ...) return ret; } -static struct { - unsigned char i, j, s[256]; -} rs; - -static void arc4_init(void) -{ - int i, fd; - unsigned char j, si, dat[128]; - - if ((fd = open("/dev/urandom", O_RDONLY)) < 0 && (fd = open("/dev/random", O_RDONLY)) < 0) { - fprintf(stderr, "Fatal: no random number source available.\n"); - exit(3); - } - if (read_in_full(fd, dat, 128) != 128) { - fprintf(stderr, "Fatal: cannot read random number source.\n"); - exit(3); - } - close(fd); - - for (i = 0; i < 256; i++) - rs.s[i] = i; - for (i = j = 0; i < 256; i++) { - si = rs.s[i]; - j += si + dat[i & 127]; - rs.s[i] = rs.s[j]; - rs.s[j] = si; - } - rs.i = rs.j = 0; - - for (i = 0; i < 256; i++) - arc4_getbyte(); -} - -static unsigned char arc4_getbyte(void) -{ - unsigned char si, sj; - - rs.i++; - si = rs.s[rs.i]; - rs.j += si; - sj = rs.s[rs.j]; - rs.s[rs.i] = sj; - rs.s[rs.j] = si; - return rs.s[(si + sj) & 0xff]; -} - static struct imap_cmd *v_issue_imap_cmd(struct imap_store *ctx, struct imap_cmd_cb *cb, const char *fmt, va_list ap) @@ -1198,88 +1149,20 @@ static int imap_make_flags(int flags, char *buf) return d; } -#define TUIDL 8 - -static int imap_store_msg(struct store *gctx, struct msg_data *data, int *uid) +static int imap_store_msg(struct store *gctx, struct msg_data *data) { struct imap_store *ctx = (struct imap_store *)gctx; struct imap *imap = ctx->imap; struct imap_cmd_cb cb; - char *fmap, *buf; const char *prefix, *box; - int ret, i, j, d, len, extra, nocr; - int start, sbreak = 0, ebreak = 0; - char flagstr[128], tuid[TUIDL * 2 + 1]; + int ret, d; + char flagstr[128]; memset(&cb, 0, sizeof(cb)); - fmap = data->data; - len = data->len; - nocr = !data->crlf; - extra = 0, i = 0; - if (!CAP(UIDPLUS) && uid) { - nloop: - start = i; - while (i < len) - if (fmap[i++] == '\n') { - extra += nocr; - if (i - 2 + nocr == start) { - sbreak = ebreak = i - 2 + nocr; - goto mktid; - } - if (!memcmp(fmap + start, "X-TUID: ", 8)) { - extra -= (ebreak = i) - (sbreak = start) + nocr; - goto mktid; - } - goto nloop; - } - /* invalid message */ - free(fmap); - return DRV_MSG_BAD; - mktid: - for (j = 0; j < TUIDL; j++) - sprintf(tuid + j * 2, "%02x", arc4_getbyte()); - extra += 8 + TUIDL * 2 + 2; - } - if (nocr) - for (; i < len; i++) - if (fmap[i] == '\n') - extra++; - - cb.dlen = len + extra; - buf = cb.data = xmalloc(cb.dlen); - i = 0; - if (!CAP(UIDPLUS) && uid) { - if (nocr) { - for (; i < sbreak; i++) - if (fmap[i] == '\n') { - *buf++ = '\r'; - *buf++ = '\n'; - } else - *buf++ = fmap[i]; - } else { - memcpy(buf, fmap, sbreak); - buf += sbreak; - } - memcpy(buf, "X-TUID: ", 8); - buf += 8; - memcpy(buf, tuid, TUIDL * 2); - buf += TUIDL * 2; - *buf++ = '\r'; - *buf++ = '\n'; - i = ebreak; - } - if (nocr) { - for (; i < len; i++) - if (fmap[i] == '\n') { - *buf++ = '\r'; - *buf++ = '\n'; - } else - *buf++ = fmap[i]; - } else - memcpy(buf, fmap + i, len - i); - - free(fmap); + cb.dlen = data->len; + cb.data = xmalloc(cb.dlen); + memcpy(cb.data, data->data, data->len); d = 0; if (data->flags) { @@ -1288,26 +1171,14 @@ static int imap_store_msg(struct store *gctx, struct msg_data *data, int *uid) } flagstr[d] = 0; - if (!uid) { - box = gctx->conf->trash; - prefix = ctx->prefix; - cb.create = 1; - if (ctx->trashnc) - imap->caps = imap->rcaps & ~(1 << LITERALPLUS); - } else { - box = gctx->name; - prefix = !strcmp(box, "INBOX") ? "" : ctx->prefix; - cb.create = 0; - } - cb.ctx = uid; + box = gctx->name; + prefix = !strcmp(box, "INBOX") ? "" : ctx->prefix; + cb.create = 0; ret = imap_exec_m(ctx, &cb, "APPEND \"%s%s\" %s", prefix, box, flagstr); imap->caps = imap->rcaps; if (ret != DRV_OK) return ret; - if (!uid) - ctx->trashnc = 0; - else - gctx->count++; + gctx->count++; return DRV_OK; } @@ -1483,7 +1354,6 @@ int main(int argc, char **argv) { struct msg_data all_msgs, msg; struct store *ctx = NULL; - int uid = 0; int ofs = 0; int r; int total, n = 0; @@ -1491,9 +1361,6 @@ int main(int argc, char **argv) git_extract_argv0_path(argv[0]); - /* init the random number generator */ - arc4_init(); - setup_git_directory_gently(&nongit_ok); git_config(git_imap_config, NULL); @@ -1540,7 +1407,7 @@ int main(int argc, char **argv) break; if (server.use_html) wrap_in_html(&msg); - r = imap_store_msg(ctx, &msg, &uid); + r = imap_store_msg(ctx, &msg); if (r != DRV_OK) break; n++; -- cgit v1.2.3 From 7a7796e9a7cd8f789fa964acbb1eec5efd05436a Mon Sep 17 00:00:00 2001 From: Erik Faye-Lund Date: Mon, 19 Oct 2009 17:42:03 +0200 Subject: imap-send: use separate read and write fds This is a patch that enables us to use the run-command API, which is supported on Windows. Signed-off-by: Erik Faye-Lund Signed-off-by: Junio C Hamano --- imap-send.c | 37 +++++++++++++++++++++++-------------- 1 file changed, 23 insertions(+), 14 deletions(-) (limited to 'imap-send.c') diff --git a/imap-send.c b/imap-send.c index 8da7a94931..7216453ceb 100644 --- a/imap-send.c +++ b/imap-send.c @@ -151,7 +151,7 @@ struct imap_list { }; struct imap_socket { - int fd; + int fd[2]; SSL *ssl; }; @@ -301,8 +301,12 @@ static int ssl_socket_connect(struct imap_socket *sock, int use_tls_only, int ve ssl_socket_perror("SSL_new"); return -1; } - if (!SSL_set_fd(sock->ssl, sock->fd)) { - ssl_socket_perror("SSL_set_fd"); + if (!SSL_set_rfd(sock->ssl, sock->fd[0])) { + ssl_socket_perror("SSL_set_rfd"); + return -1; + } + if (!SSL_set_wfd(sock->ssl, sock->fd[1])) { + ssl_socket_perror("SSL_set_wfd"); return -1; } @@ -324,11 +328,12 @@ static int socket_read(struct imap_socket *sock, char *buf, int len) n = SSL_read(sock->ssl, buf, len); else #endif - n = xread(sock->fd, buf, len); + n = xread(sock->fd[0], buf, len); if (n <= 0) { socket_perror("read", sock, n); - close(sock->fd); - sock->fd = -1; + close(sock->fd[0]); + close(sock->fd[1]); + sock->fd[0] = sock->fd[1] = -1; } return n; } @@ -341,11 +346,12 @@ static int socket_write(struct imap_socket *sock, const char *buf, int len) n = SSL_write(sock->ssl, buf, len); else #endif - n = write_in_full(sock->fd, buf, len); + n = write_in_full(sock->fd[1], buf, len); if (n != len) { socket_perror("write", sock, n); - close(sock->fd); - sock->fd = -1; + close(sock->fd[0]); + close(sock->fd[1]); + sock->fd[0] = sock->fd[1] = -1; } return n; } @@ -358,7 +364,8 @@ static void socket_shutdown(struct imap_socket *sock) SSL_free(sock->ssl); } #endif - close(sock->fd); + close(sock->fd[0]); + close(sock->fd[1]); } /* simple line buffering */ @@ -911,7 +918,7 @@ static void imap_close_server(struct imap_store *ictx) { struct imap *imap = ictx->imap; - if (imap->buf.sock.fd != -1) { + if (imap->buf.sock.fd[0] != -1) { imap_exec(ictx, NULL, "LOGOUT"); socket_shutdown(&imap->buf.sock); } @@ -939,7 +946,7 @@ static struct store *imap_open_store(struct imap_server_conf *srvc) ctx = xcalloc(sizeof(*ctx), 1); ctx->imap = imap = xcalloc(sizeof(*imap), 1); - imap->buf.sock.fd = -1; + imap->buf.sock.fd[0] = imap->buf.sock.fd[1] = -1; imap->in_progress_append = &imap->in_progress; /* open connection to IMAP server */ @@ -966,7 +973,8 @@ static struct store *imap_open_store(struct imap_server_conf *srvc) close(a[0]); - imap->buf.sock.fd = a[1]; + imap->buf.sock.fd[0] = a[1]; + imap->buf.sock.fd[1] = dup(a[1]); imap_info("ok\n"); } else { @@ -1043,7 +1051,8 @@ static struct store *imap_open_store(struct imap_server_conf *srvc) goto bail; } - imap->buf.sock.fd = s; + imap->buf.sock.fd[0] = s; + imap->buf.sock.fd[1] = dup(s); if (srvc->use_ssl && ssl_socket_connect(&imap->buf.sock, 0, srvc->ssl_verify)) { -- cgit v1.2.3 From c94d2dd0807328b1ee4aa8353382caa45bc24055 Mon Sep 17 00:00:00 2001 From: Erik Faye-Lund Date: Mon, 19 Oct 2009 17:42:04 +0200 Subject: imap-send: use run-command API for tunneling Signed-off-by: Erik Faye-Lund Signed-off-by: Junio C Hamano --- imap-send.c | 37 ++++++++++++++++--------------------- 1 file changed, 16 insertions(+), 21 deletions(-) (limited to 'imap-send.c') diff --git a/imap-send.c b/imap-send.c index 7216453ceb..72ed640125 100644 --- a/imap-send.c +++ b/imap-send.c @@ -24,6 +24,7 @@ #include "cache.h" #include "exec_cmd.h" +#include "run-command.h" #ifdef NO_OPENSSL typedef void *SSL; #endif @@ -940,8 +941,7 @@ static struct store *imap_open_store(struct imap_server_conf *srvc) struct imap_store *ctx; struct imap *imap; char *arg, *rsp; - int s = -1, a[2], preauth; - pid_t pid; + int s = -1, preauth; ctx = xcalloc(sizeof(*ctx), 1); @@ -952,29 +952,24 @@ static struct store *imap_open_store(struct imap_server_conf *srvc) /* open connection to IMAP server */ if (srvc->tunnel) { - imap_info("Starting tunnel '%s'... ", srvc->tunnel); + const char *argv[4]; + struct child_process tunnel = {0}; - if (socketpair(PF_UNIX, SOCK_STREAM, 0, a)) { - perror("socketpair"); - exit(1); - } + imap_info("Starting tunnel '%s'... ", srvc->tunnel); - pid = fork(); - if (pid < 0) - _exit(127); - if (!pid) { - if (dup2(a[0], 0) == -1 || dup2(a[0], 1) == -1) - _exit(127); - close(a[0]); - close(a[1]); - execl("/bin/sh", "sh", "-c", srvc->tunnel, NULL); - _exit(127); - } + argv[0] = "sh"; + argv[1] = "-c"; + argv[2] = srvc->tunnel; + argv[3] = NULL; - close(a[0]); + tunnel.argv = argv; + tunnel.in = -1; + tunnel.out = -1; + if (start_command(&tunnel)) + die("cannot start proxy %s", argv[0]); - imap->buf.sock.fd[0] = a[1]; - imap->buf.sock.fd[1] = dup(a[1]); + imap->buf.sock.fd[0] = tunnel.out; + imap->buf.sock.fd[1] = tunnel.in; imap_info("ok\n"); } else { -- cgit v1.2.3 From d23b1ecf11ee48cd9e266ada06f1b8298b917e92 Mon Sep 17 00:00:00 2001 From: Erik Faye-Lund Date: Mon, 19 Oct 2009 17:42:05 +0200 Subject: imap-send: fix compilation-error on Windows mmsystem.h (included from windows.h) defines DRV_OK to 1. To avoid an error due to DRV_OK redefenition, this patch undefines the old definition (i.e the one from mmsystem.h) before defining DRV_OK. Signed-off-by: Erik Faye-Lund Signed-off-by: Junio C Hamano --- imap-send.c | 1 + 1 file changed, 1 insertion(+) (limited to 'imap-send.c') diff --git a/imap-send.c b/imap-send.c index 72ed640125..69e6142456 100644 --- a/imap-send.c +++ b/imap-send.c @@ -94,6 +94,7 @@ struct msg_data { unsigned int crlf:1; }; +#undef DRV_OK #define DRV_OK 0 #define DRV_MSG_BAD -1 #define DRV_BOX_BAD -2 -- cgit v1.2.3