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version 1.1.1.1, 2010/02/23 22:54:52
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version 1.10.6.2, 2012/05/23 11:59:51
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Line 1
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Line 1
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| /************************************************************************* |
/************************************************************************* |
| * (C) 2010 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com> | * (C) 2010 AITNET ltd - Sofia/Bulgaria - <misho@aitnet.org> |
| * by Michael Pounov <misho@openbsd-bg.org> | * by Michael Pounov <misho@elwix.org> |
| * |
* |
| * $Author$ |
* $Author$ |
| * $Id$ |
* $Id$ |
| * |
* |
| *************************************************************************/ | ************************************************************************** |
| | The ELWIX and AITNET software is distributed under the following |
| | terms: |
| | |
| | All of the documentation and software included in the ELWIX and AITNET |
| | Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org> |
| | |
| | Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 |
| | by Michael Pounov <misho@elwix.org>. All rights reserved. |
| | |
| | Redistribution and use in source and binary forms, with or without |
| | modification, are permitted provided that the following conditions |
| | are met: |
| | 1. Redistributions of source code must retain the above copyright |
| | notice, this list of conditions and the following disclaimer. |
| | 2. Redistributions in binary form must reproduce the above copyright |
| | notice, this list of conditions and the following disclaimer in the |
| | documentation and/or other materials provided with the distribution. |
| | 3. All advertising materials mentioning features or use of this software |
| | must display the following acknowledgement: |
| | This product includes software developed by Michael Pounov <misho@elwix.org> |
| | ELWIX - Embedded LightWeight unIX and its contributors. |
| | 4. Neither the name of AITNET nor the names of its contributors |
| | may be used to endorse or promote products derived from this software |
| | without specific prior written permission. |
| | |
| | THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND |
| | ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| | ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| | FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| | DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| | OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| | HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| | OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| | SUCH DAMAGE. |
| | */ |
| #include "global.h" |
#include "global.h" |
| |
|
| |
|
| |
int io_Debug; |
| |
|
| |
|
| #pragma GCC visibility push(hidden) |
#pragma GCC visibility push(hidden) |
| |
|
| |
int io_mpool; |
| |
|
| int io_Errno; |
int io_Errno; |
| char io_Error[STRSIZ]; |
char io_Error[STRSIZ]; |
| |
|
|
Line 18 char io_Error[STRSIZ];
|
Line 60 char io_Error[STRSIZ];
|
| |
|
| |
|
| // io_GetErrno() Get error code of last operation |
// io_GetErrno() Get error code of last operation |
| inline int io_GetErrno() | inline int |
| | io_GetErrno() |
| { |
{ |
| return io_Errno; |
return io_Errno; |
| } |
} |
| |
|
| // io_GetError() Get error text of last operation |
// io_GetError() Get error text of last operation |
| inline const char *io_GetError() | inline const char * |
| | io_GetError() |
| { |
{ |
| return io_Error; |
return io_Error; |
| } |
} |
| |
|
| // io_SetErr() Set error to variables for internal use!!! |
// io_SetErr() Set error to variables for internal use!!! |
| inline void io_SetErr(int eno, char *estr, ...) | inline void |
| | io_SetErr(int eno, char *estr, ...) |
| { |
{ |
| va_list lst; |
va_list lst; |
| |
|
|
Line 41 inline void io_SetErr(int eno, char *estr, ...)
|
Line 86 inline void io_SetErr(int eno, char *estr, ...)
|
| va_end(lst); |
va_end(lst); |
| } |
} |
| |
|
| |
// mpool_inuse() Check for mpool usage |
| |
inline int |
| |
mpool_inuse() |
| |
{ |
| |
return io_mpool; |
| |
} |
| |
|
| |
|
| /* |
/* |
| * ioPromptRead() Read data from input h[0] with prompt to output h[1] | * ioPromptRead() - Read data from input h[0] with prompt to output h[1] |
| | * |
| * @h = file handles h[0] = input, h[1] = output, if NULL use stdin, stdout |
* @h = file handles h[0] = input, h[1] = output, if NULL use stdin, stdout |
| * @csPrompt = Prompt before input, may be NULL |
* @csPrompt = Prompt before input, may be NULL |
| * @psData = Readed data |
* @psData = Readed data |
| * @dataLen = Length of data |
* @dataLen = Length of data |
| * return: 0 EOF; -1 error:: can`t read; >0 count of readed chars |
* return: 0 EOF; -1 error:: can`t read; >0 count of readed chars |
| */ |
*/ |
| int ioPromptRead(int *h, const char *csPrompt, char * __restrict psData, int dataLen) | int |
| | ioPromptRead(int *h, const char *csPrompt, char * __restrict psData, int dataLen) |
| { |
{ |
| int ok = 0; |
int ok = 0; |
| FILE *inp, *out; |
FILE *inp, *out; |
|
Line 95 int ioPromptRead(int *h, const char *csPrompt, char *
|
Line 149 int ioPromptRead(int *h, const char *csPrompt, char *
|
| } |
} |
| |
|
| /* |
/* |
| * ioPromptPassword() Read password from input h[0] with prompt to output h[1] | * ioPromptPassword() - Read password from input h[0] with prompt to output h[1] |
| | * |
| * @h = file handles h[0] = input, h[1] = output, if NULL use stdin, stdout |
* @h = file handles h[0] = input, h[1] = output, if NULL use stdin, stdout |
| * @csPrompt = Prompt before input, may be NULL |
* @csPrompt = Prompt before input, may be NULL |
| * @psPass = Readed password |
* @psPass = Readed password |
|
Line 103 int ioPromptRead(int *h, const char *csPrompt, char *
|
Line 158 int ioPromptRead(int *h, const char *csPrompt, char *
|
| * @confirm = Confirm password, 0 - get password, !=0 Ask for confirmation |
* @confirm = Confirm password, 0 - get password, !=0 Ask for confirmation |
| * return: 0 EOF; -1 error:: can`t read; >0 count of readed chars |
* return: 0 EOF; -1 error:: can`t read; >0 count of readed chars |
| */ |
*/ |
| int ioPromptPassword(int *h, const char *csPrompt, char * __restrict psPass, int passLen, int confirm) | int |
| | ioPromptPassword(int *h, const char *csPrompt, char * __restrict psPass, int passLen, int confirm) |
| { |
{ |
| int ret, ok = 0; |
int ret, ok = 0; |
| FILE *inp, *out; |
FILE *inp, *out; |
|
Line 180 next:
|
Line 236 next:
|
| } |
} |
| |
|
| /* |
/* |
| * ioRegexVerify() Function for verify data match in regex expression | * ioRegexVerify() - Function for verify data match in regex expression |
| | * |
| * @csRegex = Regulare expression pattern |
* @csRegex = Regulare expression pattern |
| * @csData = Data for check and verify |
* @csData = Data for check and verify |
| * @startPos = Return start positions |
* @startPos = Return start positions |
| * @endPos = Return end positions |
* @endPos = Return end positions |
| * return: NULL not match or error; !=NULL begin of matched data |
* return: NULL not match or error; !=NULL begin of matched data |
| */ |
*/ |
| const char *ioRegexVerify(const char *csRegex, const char *csData, int *startPos, int *endPos) | const char * |
| | ioRegexVerify(const char *csRegex, const char *csData, int *startPos, int *endPos) |
| { |
{ |
| regex_t re; |
regex_t re; |
| regmatch_t match; |
regmatch_t match; |
|
Line 200 const char *ioRegexVerify(const char *csRegex, const c
|
Line 258 const char *ioRegexVerify(const char *csRegex, const c
|
| |
|
| if ((ret = regcomp(&re, csRegex, REG_EXTENDED))) { |
if ((ret = regcomp(&re, csRegex, REG_EXTENDED))) { |
| regerror(ret, &re, szErr, STRSIZ); |
regerror(ret, &re, szErr, STRSIZ); |
| io_SetErr(ret, "Error:: %s\n", szErr); | io_SetErr(ret, "%s", szErr); |
| regfree(&re); |
regfree(&re); |
| return NULL; |
return NULL; |
| } |
} |
|
Line 218 const char *ioRegexVerify(const char *csRegex, const c
|
Line 276 const char *ioRegexVerify(const char *csRegex, const c
|
| |
|
| if (ret) { |
if (ret) { |
| regerror(ret, &re, szErr, STRSIZ); |
regerror(ret, &re, szErr, STRSIZ); |
| io_SetErr(ret, "Error:: %s\n", szErr); | io_SetErr(ret, "%s", szErr); |
| pos = NULL; |
pos = NULL; |
| } |
} |
| |
|
|
Line 227 const char *ioRegexVerify(const char *csRegex, const c
|
Line 285 const char *ioRegexVerify(const char *csRegex, const c
|
| } |
} |
| |
|
| /* |
/* |
| * ioRegexGet() Function for get data match in regex expression | * ioRegexGet() - Function for get data match in regex expression |
| | * |
| * @csRegex = Regulare expression pattern |
* @csRegex = Regulare expression pattern |
| * @csData = Data from get |
* @csData = Data from get |
| * @psString = Returned string if match |
* @psString = Returned string if match |
| * @strLen = Length of string |
* @strLen = Length of string |
| * return: 0 not match; >0 count of returned chars |
* return: 0 not match; >0 count of returned chars |
| */ |
*/ |
| int ioRegexGet(const char *csRegex, const char *csData, char * __restrict psString, int strLen) | int |
| | ioRegexGet(const char *csRegex, const char *csData, char * __restrict psString, int strLen) |
| { |
{ |
| int sp, ep, len; |
int sp, ep, len; |
| const char *str; |
const char *str; |
|
Line 256 int ioRegexGet(const char *csRegex, const char *csData
|
Line 316 int ioRegexGet(const char *csRegex, const char *csData
|
| } |
} |
| |
|
| /* |
/* |
| * ioRegexReplace() Function for replace data match in regex expression with newdata | * ioRegexReplace() - Function for replace data match in regex expression with newdata |
| | * |
| * @csRegex = Regulare expression pattern |
* @csRegex = Regulare expression pattern |
| * @csData = Source data |
* @csData = Source data |
| * @csNew = Data for replace |
* @csNew = Data for replace |
| * return: NULL not match or error; !=NULL allocated new string, must be free after use! | * return: NULL not match or error; !=NULL allocated new string, must be xfree after use! |
| */ |
*/ |
| char *ioRegexReplace(const char *csRegex, const char *csData, const char *csNew) | char * |
| | ioRegexReplace(const char *csRegex, const char *csData, const char *csNew) |
| { |
{ |
| int sp, ep, len; |
int sp, ep, len; |
| char *str = NULL; |
char *str = NULL; |
|
Line 275 char *ioRegexReplace(const char *csRegex, const char *
|
Line 337 char *ioRegexReplace(const char *csRegex, const char *
|
| |
|
| // ___ before match |
// ___ before match |
| len = sp + 1; |
len = sp + 1; |
| str = malloc(len); | str = xmalloc(len); |
| if (!str) { |
if (!str) { |
| LOGERR; |
LOGERR; |
| return NULL; |
return NULL; |
|
Line 284 char *ioRegexReplace(const char *csRegex, const char *
|
Line 346 char *ioRegexReplace(const char *csRegex, const char *
|
| // * replace match * |
// * replace match * |
| if (csNew) { |
if (csNew) { |
| len += strlen(csNew); |
len += strlen(csNew); |
| str = realloc(str, len); | str = xrealloc(str, len); |
| if (!str) { |
if (!str) { |
| LOGERR; |
LOGERR; |
| return NULL; |
return NULL; |
|
Line 293 char *ioRegexReplace(const char *csRegex, const char *
|
Line 355 char *ioRegexReplace(const char *csRegex, const char *
|
| } |
} |
| // after match ___ |
// after match ___ |
| len += strlen(csData) - ep; |
len += strlen(csData) - ep; |
| str = realloc(str, len); | str = xrealloc(str, len); |
| if (!str) { |
if (!str) { |
| LOGERR; |
LOGERR; |
| return NULL; |
return NULL; |
|
Line 301 char *ioRegexReplace(const char *csRegex, const char *
|
Line 363 char *ioRegexReplace(const char *csRegex, const char *
|
| strlcat(str, csData + ep, len); |
strlcat(str, csData + ep, len); |
| |
|
| return str; |
return str; |
| |
} |
| |
|
| |
/* |
| |
* ioStrAst() - Function for evaluate string like asterisk variable "{text[:[-]#[:#]]}" |
| |
* |
| |
* @csString = Input string |
| |
* return: NULL error, !=NULL Allocated new string evaluated from input string, must be xfree() |
| |
*/ |
| |
char * |
| |
ioStrAst(const char *csString) |
| |
{ |
| |
char *ext, *str, *out = NULL; |
| |
int e[2] = { 0 }; |
| |
|
| |
if (!csString) |
| |
return NULL; |
| |
|
| |
if (!strchr(csString, '{') || !strrchr(csString, '}')) { |
| |
memset(io_Error, 0, STRSIZ); |
| |
snprintf(io_Error, STRSIZ, "Invalid input string format ... " |
| |
"must be like {text[:[-]#[:#]]}"); |
| |
io_Errno = EINVAL; |
| |
return NULL; |
| |
} else { |
| |
str = strdup(strchr(csString, '{') + 1); |
| |
*strrchr(str, '}') = 0; |
| |
} |
| |
|
| |
if ((ext = strchr(str, ':'))) { |
| |
*ext++ = 0; |
| |
e[0] = strtol(ext, NULL, 0); |
| |
if ((ext = strchr(ext, ':'))) |
| |
e[1] = strtol(++ext, NULL, 0); |
| |
|
| |
/* make cut prefix */ |
| |
if (e[0] >= 0) |
| |
ext = str + e[0]; |
| |
else |
| |
ext = str + strlen(str) + e[0]; |
| |
/* make cut suffix */ |
| |
if (e[1] > 0) |
| |
*(ext + e[1]) = 0; |
| |
} else |
| |
/* ok, clear show */ |
| |
ext = str; |
| |
|
| |
out = strdup(ext); |
| |
xfree(str); |
| |
|
| |
return out; |
| |
} |
| |
|
| |
|
| |
/* |
| |
* ioMkDir() - Function for racursive directory creation and validation |
| |
* |
| |
* @csDir = Full directory path |
| |
* @mode = Mode for directory creation if missing dir |
| |
* return: -1 error, 0 directory path exist, >0 created missing dirs |
| |
*/ |
| |
int |
| |
ioMkDir(const char *csDir, int mode) |
| |
{ |
| |
char *str, *s, *pbrk, szOld[MAXPATHLEN] = { 0 }; |
| |
register int cx = -1; |
| |
|
| |
if (!csDir) |
| |
return cx; |
| |
|
| |
str = strdup(csDir); |
| |
if (!str) { |
| |
LOGERR; |
| |
return cx; |
| |
} |
| |
|
| |
getcwd(szOld, MAXPATHLEN); |
| |
if (*str == '/') |
| |
chdir("/"); |
| |
|
| |
for (cx = 0, s = strtok_r(str, "/", &pbrk); s; s = strtok_r(NULL, "/", &pbrk)) { |
| |
if (mkdir(s, mode) == -1) { |
| |
if (errno != EEXIST) { |
| |
LOGERR; |
| |
cx = -1; |
| |
goto end; |
| |
} |
| |
} else |
| |
cx++; |
| |
|
| |
if (chdir(s) == -1) { |
| |
LOGERR; |
| |
cx = -1; |
| |
goto end; |
| |
} |
| |
} |
| |
end: |
| |
chdir(szOld); |
| |
xfree(str); |
| |
return cx; |
| |
} |
| |
|
| |
/* |
| |
* ioWatchDirLoop() - Function for watching changes in directory and fire callback |
| |
* |
| |
* @csDir = Full directory path |
| |
* @callback = Callback if raise event! nOp -1 delete, 0 change/move, 1 create |
| |
* return: -1 error, !=-1 ok, number of total signaled events |
| |
*/ |
| |
int |
| |
ioWatchDirLoop(const char *csDir, int (*callback)(const char *csName, int nOp)) |
| |
{ |
| |
glob_t g[2] = {{ 0 }, { 0 }}; |
| |
int d, kq, n = 0; |
| |
register int j, i; |
| |
struct kevent req, chg; |
| |
char wrk[MAXPATHLEN * 2], str[MAXPATHLEN] = { 0 }; |
| |
|
| |
if (!csDir || !callback) |
| |
return 0; |
| |
|
| |
strlcpy(str, csDir, MAXPATHLEN); |
| |
strlcat(str, "/*", MAXPATHLEN); |
| |
|
| |
kq = kqueue(); |
| |
if (kq == -1) { |
| |
LOGERR; |
| |
return -1; |
| |
} |
| |
d = open(csDir, O_RDONLY); |
| |
if (d == -1) { |
| |
LOGERR; |
| |
close(kq); |
| |
return -1; |
| |
} |
| |
|
| |
EV_SET(&req, d, EVFILT_VNODE, EV_ADD | EV_CLEAR, NOTE_WRITE, 0, 0); |
| |
|
| |
if ((n = glob(str, GLOB_NOCHECK, NULL, &g[0]))) { |
| |
LOGERR; |
| |
close(d); |
| |
close(kq); |
| |
return -1; |
| |
} /*else |
| |
ioDEBUG(3, "Start files %d in %s\n", g[0].gl_matchc, str);*/ |
| |
|
| |
while (kevent(kq, &req, 1, &chg, 1, NULL) > 0) { |
| |
/*ioDEBUG(1, "Event:: req=0x%x -> chg=0x%x data=%x\n", req.fflags, chg.fflags, chg.data);*/ |
| |
|
| |
if (!glob(str, GLOB_NOCHECK, NULL, &g[1])) { |
| |
/*ioDEBUG(3, "Diffs %d <> %d\n", g[0].gl_matchc, g[1].gl_matchc);*/ |
| |
|
| |
if (g[0].gl_matchc != g[1].gl_matchc) { |
| |
/* find new items */ |
| |
for (j = 0; j < g[1].gl_matchc; j++) { |
| |
for (i = 0; i < g[0].gl_matchc; i++) |
| |
if (!strcmp(g[0].gl_pathv[i], g[1].gl_pathv[j])) |
| |
break; |
| |
if (i == g[0].gl_matchc) { |
| |
if (callback(g[1].gl_pathv[j], 1) < 0) |
| |
break; |
| |
else |
| |
n++; |
| |
} |
| |
} |
| |
/* find del items */ |
| |
for (j = 0; j < g[0].gl_matchc; j++) { |
| |
for (i = 0; i < g[1].gl_matchc; i++) |
| |
if (!strcmp(g[1].gl_pathv[i], g[0].gl_pathv[j])) |
| |
break; |
| |
if (i == g[1].gl_matchc) { |
| |
if (callback(g[0].gl_pathv[j], -1) < 0) |
| |
break; |
| |
else |
| |
n++; |
| |
} |
| |
} |
| |
} else { |
| |
/* find chg from items */ |
| |
for (j = 0; j < g[0].gl_matchc; j++) { |
| |
for (i = 0; i < g[1].gl_matchc; i++) |
| |
if (!strcmp(g[1].gl_pathv[i], g[0].gl_pathv[j])) |
| |
break; |
| |
if (i == g[1].gl_matchc) { |
| |
strlcpy(wrk, g[0].gl_pathv[j], sizeof wrk); |
| |
strlcat(wrk, ":", sizeof wrk); |
| |
} |
| |
} |
| |
/* find chg to items */ |
| |
for (j = 0; j < g[1].gl_matchc; j++) { |
| |
for (i = 0; i < g[0].gl_matchc; i++) |
| |
if (!strcmp(g[0].gl_pathv[i], g[1].gl_pathv[j])) |
| |
break; |
| |
if (i == g[0].gl_matchc) { |
| |
strlcat(wrk, g[1].gl_pathv[j], sizeof wrk); |
| |
if (callback(wrk, 0) < 0) |
| |
break; |
| |
else |
| |
n++; |
| |
} |
| |
} |
| |
} |
| |
|
| |
globfree(&g[0]); |
| |
g[0] = g[1]; |
| |
} |
| |
} |
| |
|
| |
globfree(&g[0]); |
| |
close(d); |
| |
close(kq); |
| |
return n; |
| |
} |
| |
|
| |
/* |
| |
* ioCreatePIDFile() - Create PID file |
| |
* |
| |
* @csName = PID filename |
| |
* @ifExists = !=0 if filename exists return error |
| |
* return: -1 error or 0 ok |
| |
*/ |
| |
inline int |
| |
ioCreatePIDFile(const char *csName, int ifExists) |
| |
{ |
| |
int fd; |
| |
char str[STRSIZ] = { 0 }; |
| |
|
| |
if (!csName) |
| |
return -1; |
| |
|
| |
fd = open(csName, O_WRONLY | O_CREAT | (ifExists ? O_EXCL : 0), 0644); |
| |
if (fd == -1) { |
| |
LOGERR; |
| |
return -1; |
| |
} |
| |
snprintf(str, sizeof str, "%d", getpid()); |
| |
write(fd, str, strlen(str)); |
| |
close(fd); |
| |
return 0; |
| |
} |
| |
|
| |
|
| |
/* |
| |
* ioSendFile() - AITNET sendfile() userland implementation, not dependant from OS |
| |
* |
| |
* @s = socket |
| |
* @csFile = file for send |
| |
* @sendLen = bytes to send, if 0 send all data |
| |
* @offset = start file offset |
| |
* @sndbuf = SO_SNDBUF value, if 0 use default |
| |
* return: 0 error, >0 ok, sended bytes |
| |
*/ |
| |
size_t |
| |
ioSendFile(int s, const char *csFile, size_t sendLen, off_t offset, int sndbuf) |
| |
{ |
| |
void *addr; |
| |
int fd; |
| |
size_t len = 0; |
| |
register size_t off = 0; |
| |
|
| |
if (!csFile) |
| |
return 0; |
| |
|
| |
if (sndbuf) |
| |
if (setsockopt(s, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof sndbuf) == -1) { |
| |
LOGERR; |
| |
return 0; |
| |
} |
| |
|
| |
fd = open(csFile, O_RDONLY); |
| |
if (fd == -1) { |
| |
LOGERR; |
| |
return 0; |
| |
} |
| |
if (!sendLen) { |
| |
sendLen = lseek(fd, 0, SEEK_END); |
| |
if (sendLen == -1) { |
| |
LOGERR; |
| |
close(fd); |
| |
return 0; |
| |
} |
| |
} |
| |
addr = mmap(NULL, sendLen, PROT_READ, MAP_SHARED, fd, offset); |
| |
if (addr == MAP_FAILED) { |
| |
LOGERR; |
| |
close(fd); |
| |
return 0; |
| |
} else |
| |
close(fd); |
| |
|
| |
while (off < sendLen && (len = write(s, addr + off, sendLen - off)) != -1) |
| |
off += len; |
| |
if (len == -1) { |
| |
LOGERR; |
| |
munmap(addr, sendLen); |
| |
return 0; |
| |
} else |
| |
len = off; |
| |
|
| |
if (len != sendLen) { |
| |
io_SetErr(ECANCELED, "Different sizes - request %u bytes, actually sended %u bytes\n", |
| |
sendLen, len); |
| |
len ^= len; |
| |
} |
| |
|
| |
munmap(addr, sendLen); |
| |
return len; |
| |
} |
| |
|
| |
/* |
| |
* ioRecvFile() - Receive file from socket, fastest (zero-copy) way |
| |
* |
| |
* @s = socket |
| |
* @csFile = file for receive |
| |
* @recvLen = receive bytes |
| |
* @over = overwrite file if exists with mode like 0644 |
| |
* @rcvbuf = SO_RCVBUF value, if 0 use default |
| |
* return: 0 error, >0 ok, received bytes |
| |
*/ |
| |
size_t |
| |
ioRecvFile(int s, const char *csFile, size_t recvLen, int over, int rcvbuf) |
| |
{ |
| |
void *addr; |
| |
int fd; |
| |
size_t len = 0; |
| |
register size_t off = 0; |
| |
struct pollfd pfd = { s, POLLIN | POLLPRI, 0 }; |
| |
|
| |
if (!csFile || !recvLen) |
| |
return 0; |
| |
if (!over && !access(csFile, F_OK)) |
| |
return 0; |
| |
|
| |
if (rcvbuf) |
| |
if (setsockopt(s, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof rcvbuf) == -1) { |
| |
LOGERR; |
| |
return 0; |
| |
} |
| |
|
| |
fd = open(csFile, O_WRONLY | O_CREAT | O_TRUNC, over); |
| |
if (fd == -1) { |
| |
LOGERR; |
| |
unlink(csFile); |
| |
return 0; |
| |
} |
| |
if (ftruncate(fd, recvLen) == -1) { |
| |
LOGERR; |
| |
close(fd); |
| |
unlink(csFile); |
| |
return 0; |
| |
} |
| |
addr = mmap(NULL, recvLen, PROT_WRITE, MAP_SHARED, fd, 0); |
| |
if (addr == MAP_FAILED) { |
| |
LOGERR; |
| |
close(fd); |
| |
unlink(csFile); |
| |
return 0; |
| |
} else |
| |
close(fd); |
| |
|
| |
while (off < recvLen && poll(&pfd, 1, RECV_TIMEOUT) != -1) |
| |
while (off < recvLen && (len = read(s, addr + off, recvLen - off)) != -1) |
| |
off += len; |
| |
if (len == -1) { |
| |
LOGERR; |
| |
munmap(addr, recvLen); |
| |
unlink(csFile); |
| |
return 0; |
| |
} else |
| |
len = off; |
| |
|
| |
if (len != recvLen) |
| |
io_SetErr(EAGAIN, "Different sizes - request %u bytes, actually received %u bytes\n", |
| |
recvLen, len); |
| |
|
| |
munmap(addr, recvLen); |
| |
return len; |
| } |
} |