diff options
Diffstat (limited to 'contrib/sendmail/libmilter/comm.c')
| -rw-r--r-- | contrib/sendmail/libmilter/comm.c | 278 |
1 files changed, 0 insertions, 278 deletions
diff --git a/contrib/sendmail/libmilter/comm.c b/contrib/sendmail/libmilter/comm.c deleted file mode 100644 index aa48cf78791d..000000000000 --- a/contrib/sendmail/libmilter/comm.c +++ /dev/null @@ -1,278 +0,0 @@ -/* - * Copyright (c) 1999-2003 Sendmail, Inc. and its suppliers. - * All rights reserved. - * - * By using this file, you agree to the terms and conditions set - * forth in the LICENSE file which can be found at the top level of - * the sendmail distribution. - * - */ - -#include <sm/gen.h> -SM_RCSID("@(#)$Id: comm.c,v 8.54.2.6 2003/01/03 22:14:40 ca Exp $") - -#include "libmilter.h" -#include <sm/errstring.h> - -/* -** MI_RD_CMD -- read a command -** -** Parameters: -** sd -- socket descriptor -** timeout -- maximum time to wait -** cmd -- single character command read from sd -** rlen -- pointer to length of result -** name -- name of milter -** -** Returns: -** buffer with rest of command -** (malloc()ed here, should be free()d) -** hack: encode error in cmd -*/ - -char * -mi_rd_cmd(sd, timeout, cmd, rlen, name) - socket_t sd; - struct timeval *timeout; - char *cmd; - size_t *rlen; - char *name; -{ - ssize_t len; - mi_int32 expl; - ssize_t i; - FD_RD_VAR(rds, excs); - int ret; - int save_errno; - char *buf; - char data[MILTER_LEN_BYTES + 1]; - - *cmd = '\0'; - *rlen = 0; - - i = 0; - for (;;) - { - FD_RD_INIT(sd, rds, excs); - ret = FD_RD_READY(sd, rds, excs, timeout); - if (ret == 0) - break; - else if (ret < 0) - { - if (errno == EINTR) - continue; - break; - } - if (FD_IS_RD_EXC(sd, rds, excs)) - { - *cmd = SMFIC_SELECT; - return NULL; - } - - len = MI_SOCK_READ(sd, data + i, sizeof data - i); - if (MI_SOCK_READ_FAIL(len)) - { - smi_log(SMI_LOG_ERR, - "%s, mi_rd_cmd: read returned %d: %s", - name, (int) len, sm_errstring(errno)); - *cmd = SMFIC_RECVERR; - return NULL; - } - if (len == 0) - { - *cmd = SMFIC_EOF; - return NULL; - } - if (len >= (ssize_t) sizeof data - i) - break; - i += len; - } - if (ret == 0) - { - *cmd = SMFIC_TIMEOUT; - return NULL; - } - else if (ret < 0) - { - smi_log(SMI_LOG_ERR, - "%s: mi_rd_cmd: select returned %d: %s", - name, ret, sm_errstring(errno)); - *cmd = SMFIC_RECVERR; - return NULL; - } - - *cmd = data[MILTER_LEN_BYTES]; - data[MILTER_LEN_BYTES] = '\0'; - (void) memcpy((void *) &expl, (void *) &(data[0]), MILTER_LEN_BYTES); - expl = ntohl(expl) - 1; - if (expl <= 0) - return NULL; - if (expl > MILTER_CHUNK_SIZE) - { - *cmd = SMFIC_TOOBIG; - return NULL; - } -#if _FFR_ADD_NULL - buf = malloc(expl + 1); -#else /* _FFR_ADD_NULL */ - buf = malloc(expl); -#endif /* _FFR_ADD_NULL */ - if (buf == NULL) - { - *cmd = SMFIC_MALLOC; - return NULL; - } - - i = 0; - for (;;) - { - FD_RD_INIT(sd, rds, excs); - ret = FD_RD_READY(sd, rds, excs, timeout); - if (ret == 0) - break; - else if (ret < 0) - { - if (errno == EINTR) - continue; - break; - } - if (FD_IS_RD_EXC(sd, rds, excs)) - { - *cmd = SMFIC_SELECT; - free(buf); - return NULL; - } - len = MI_SOCK_READ(sd, buf + i, expl - i); - if (MI_SOCK_READ_FAIL(len)) - { - smi_log(SMI_LOG_ERR, - "%s: mi_rd_cmd: read returned %d: %s", - name, (int) len, sm_errstring(errno)); - ret = -1; - break; - } - if (len == 0) - { - *cmd = SMFIC_EOF; - free(buf); - return NULL; - } - if (len > expl - i) - { - *cmd = SMFIC_RECVERR; - free(buf); - return NULL; - } - if (len >= expl - i) - { - *rlen = expl; -#if _FFR_ADD_NULL - /* makes life simpler for common string routines */ - buf[expl] = '\0'; -#endif /* _FFR_ADD_NULL */ - return buf; - } - i += len; - } - - save_errno = errno; - free(buf); - - /* select returned 0 (timeout) or < 0 (error) */ - if (ret == 0) - { - *cmd = SMFIC_TIMEOUT; - return NULL; - } - if (ret < 0) - { - smi_log(SMI_LOG_ERR, - "%s: mi_rd_cmd: select returned %d: %s", - name, ret, sm_errstring(save_errno)); - *cmd = SMFIC_RECVERR; - return NULL; - } - *cmd = SMFIC_UNKNERR; - return NULL; -} -/* -** MI_WR_CMD -- write a cmd to sd -** -** Parameters: -** sd -- socket descriptor -** timeout -- maximum time to wait (currently unused) -** cmd -- single character command to write -** buf -- buffer with further data -** len -- length of buffer (without cmd!) -** -** Returns: -** MI_SUCCESS/MI_FAILURE -*/ - -/* -** we don't care much about the timeout here, it's very long anyway -** FD_SETSIZE is checked when socket is created. -** XXX l == 0 ? -*/ - -#define MI_WR(data) \ - while (sl > 0) \ - { \ - FD_WR_INIT(sd, wrs); \ - ret = FD_WR_READY(sd, wrs, timeout); \ - if (ret == 0) \ - return MI_FAILURE; \ - if (ret < 0) \ - { \ - if (errno == EINTR) \ - continue; \ - else \ - return MI_FAILURE; \ - } \ - l = MI_SOCK_WRITE(sd, (void *) ((data) + i), sl); \ - if (l < 0) \ - { \ - if (errno == EINTR) \ - continue; \ - else \ - return MI_FAILURE; \ - } \ - i += l; \ - sl -= l; \ - } - -int -mi_wr_cmd(sd, timeout, cmd, buf, len) - socket_t sd; - struct timeval *timeout; - int cmd; - char *buf; - size_t len; -{ - size_t sl, i; - ssize_t l; - mi_int32 nl; - int ret; - FD_WR_VAR(wrs); - char data[MILTER_LEN_BYTES + 1]; - - if (len > MILTER_CHUNK_SIZE) - return MI_FAILURE; - nl = htonl(len + 1); /* add 1 for the cmd char */ - (void) memcpy(data, (void *) &nl, MILTER_LEN_BYTES); - data[MILTER_LEN_BYTES] = (char) cmd; - i = 0; - sl = MILTER_LEN_BYTES + 1; - - /* use writev() instead to send the whole stuff at once? */ - - MI_WR(data); - if (len > 0 && buf == NULL) - return MI_FAILURE; - if (len == 0 || buf == NULL) - return MI_SUCCESS; - i = 0; - sl = len; - MI_WR(buf); - return MI_SUCCESS; -} |