1: /*************************************************************************
2: * (C) 2010 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
3: * by Michael Pounov <misho@openbsd-bg.org>
4: *
5: * $Author: misho $
6: * $Id: aitio.c,v 1.3.4.1 2011/04/19 19:58:25 misho Exp $
7: *
8: *************************************************************************/
9: #include "global.h"
10:
11:
12: int io_Debug;
13:
14:
15: #pragma GCC visibility push(hidden)
16:
17: int io_Errno;
18: char io_Error[STRSIZ];
19:
20: #pragma GCC visibility pop
21:
22:
23: // io_GetErrno() Get error code of last operation
24: inline int io_GetErrno()
25: {
26: return io_Errno;
27: }
28:
29: // io_GetError() Get error text of last operation
30: inline const char *io_GetError()
31: {
32: return io_Error;
33: }
34:
35: // io_SetErr() Set error to variables for internal use!!!
36: inline void io_SetErr(int eno, char *estr, ...)
37: {
38: va_list lst;
39:
40: io_Errno = eno;
41: memset(io_Error, 0, STRSIZ);
42: va_start(lst, estr);
43: vsnprintf(io_Error, STRSIZ, estr, lst);
44: va_end(lst);
45: }
46:
47:
48: /*
49: * ioPromptRead() Read data from input h[0] with prompt to output h[1]
50: * @h = file handles h[0] = input, h[1] = output, if NULL use stdin, stdout
51: * @csPrompt = Prompt before input, may be NULL
52: * @psData = Readed data
53: * @dataLen = Length of data
54: * return: 0 EOF; -1 error:: can`t read; >0 count of readed chars
55: */
56: int ioPromptRead(int *h, const char *csPrompt, char * __restrict psData, int dataLen)
57: {
58: int ok = 0;
59: FILE *inp, *out;
60: char szLine[BUFSIZ], *pos;
61:
62: if (!psData || !dataLen)
63: return -1;
64:
65: inp = fdopen(!h ? 0 : h[0], "r");
66: if (!inp) {
67: LOGERR;
68: return -1;
69: }
70: out = fdopen(!h ? 1 : h[1], "w");
71: if (!out) {
72: LOGERR;
73: return -1;
74: }
75:
76: while (!ok) {
77: if (csPrompt) {
78: fprintf(out, "%s", csPrompt);
79: fflush(out);
80: }
81:
82: memset(szLine, 0, BUFSIZ);
83: if (!fgets(szLine, BUFSIZ, inp)) {
84: clearerr(inp);
85: fpurge(out);
86: fflush(out);
87: return 0;
88: }
89:
90: if ((pos = strchr(szLine, '\n')))
91: *pos = 0;
92:
93: strlcpy(psData, szLine, dataLen);
94: ok = 1;
95: }
96:
97: return pos - szLine;
98: }
99:
100: /*
101: * ioPromptPassword() Read password from input h[0] with prompt to output h[1]
102: * @h = file handles h[0] = input, h[1] = output, if NULL use stdin, stdout
103: * @csPrompt = Prompt before input, may be NULL
104: * @psPass = Readed password
105: * @passLen = Length of password
106: * @confirm = Confirm password, 0 - get password, !=0 Ask for confirmation
107: * return: 0 EOF; -1 error:: can`t read; >0 count of readed chars
108: */
109: int ioPromptPassword(int *h, const char *csPrompt, char * __restrict psPass, int passLen, int confirm)
110: {
111: int ret, ok = 0;
112: FILE *inp, *out;
113: char szLine[2][STRSIZ];
114: struct sgttyb tty_state;
115:
116: if (!psPass || !passLen)
117: return -1;
118:
119: inp = fdopen(!h ? 0 : h[0], "r");
120: if (!inp) {
121: LOGERR;
122: return -1;
123: }
124: out = fdopen(!h ? 1 : h[1], "w");
125: if (!out) {
126: LOGERR;
127: return -1;
128: }
129:
130: if (ioctl(fileno(inp), TIOCGETP, &tty_state) == -1) {
131: LOGERR;
132: return -1;
133: } else {
134: tty_state.sg_flags &= ~ECHO;
135: if (ioctl(fileno(inp), TIOCSETP, &tty_state) == -1) {
136: LOGERR;
137: return -1;
138: }
139: }
140:
141: while (!ok) {
142: switch ((ret = ioPromptRead(h, (!csPrompt || !*csPrompt) ? "Password:" : csPrompt,
143: szLine[0], STRSIZ))) {
144: case -1:
145: LOGERR;
146: ok = -1;
147: case 0:
148: goto next;
149: }
150: if (confirm) {
151: fprintf(out, "\n");
152: fflush(out);
153:
154: switch (ioPromptRead(h, "Password confirm:", szLine[1], STRSIZ)) {
155: case -1:
156: LOGERR;
157: ok = -1;
158: goto next;
159: case 0:
160: default:
161: if (strcmp(szLine[0], szLine[1])) {
162: fprintf(out, "\n\07\07Mismatch - Try again!\n");
163: fflush(out);
164: continue;
165: }
166: }
167: }
168:
169: strlcpy(psPass, szLine[0], passLen);
170: ok = ret;
171: fprintf(out, "\n");
172: fflush(out);
173: }
174:
175: next:
176: tty_state.sg_flags |= ECHO;
177: if (ioctl(fileno(inp), TIOCSETP, &tty_state) == -1) {
178: LOGERR;
179: return -1;
180: }
181:
182: return ok;
183: }
184:
185: /*
186: * ioRegexVerify() Function for verify data match in regex expression
187: * @csRegex = Regulare expression pattern
188: * @csData = Data for check and verify
189: * @startPos = Return start positions
190: * @endPos = Return end positions
191: * return: NULL not match or error; !=NULL begin of matched data
192: */
193: const char *ioRegexVerify(const char *csRegex, const char *csData, int *startPos, int *endPos)
194: {
195: regex_t re;
196: regmatch_t match;
197: char szErr[STRSIZ];
198: int ret, flg;
199: const char *pos;
200:
201: if (!csRegex || !csData)
202: return NULL;
203:
204: if ((ret = regcomp(&re, csRegex, REG_EXTENDED))) {
205: regerror(ret, &re, szErr, STRSIZ);
206: io_SetErr(ret, "Error:: %s\n", szErr);
207: regfree(&re);
208: return NULL;
209: }
210:
211: for (ret = flg = 0, pos = csData; !(ret = regexec(&re, pos, 1, &match, flg));
212: pos += match.rm_eo, flg = REG_NOTBOL) {
213: if (startPos)
214: *startPos = match.rm_so;
215: if (endPos)
216: *endPos = match.rm_eo;
217:
218: pos += match.rm_so;
219: break;
220: }
221:
222: if (ret) {
223: regerror(ret, &re, szErr, STRSIZ);
224: io_SetErr(ret, "Error:: %s\n", szErr);
225: pos = NULL;
226: }
227:
228: regfree(&re);
229: return pos;
230: }
231:
232: /*
233: * ioRegexGet() Function for get data match in regex expression
234: * @csRegex = Regulare expression pattern
235: * @csData = Data from get
236: * @psString = Returned string if match
237: * @strLen = Length of string
238: * return: 0 not match; >0 count of returned chars
239: */
240: int ioRegexGet(const char *csRegex, const char *csData, char * __restrict psString, int strLen)
241: {
242: int sp, ep, len;
243: const char *str;
244:
245: if (!csRegex || !csData)
246: return -1;
247:
248: str = ioRegexVerify(csRegex, csData, &sp, &ep);
249: if (!str)
250: return 0;
251:
252: len = ep - sp;
253: if (psString && strLen) {
254: memset(psString, 0, strLen);
255: strncpy(psString, str, strLen <= len ? strLen - 1 : len);
256: }
257:
258: return len;
259: }
260:
261: /*
262: * ioRegexReplace() Function for replace data match in regex expression with newdata
263: * @csRegex = Regulare expression pattern
264: * @csData = Source data
265: * @csNew = Data for replace
266: * return: NULL not match or error; !=NULL allocated new string, must be free after use!
267: */
268: char *ioRegexReplace(const char *csRegex, const char *csData, const char *csNew)
269: {
270: int sp, ep, len;
271: char *str = NULL;
272:
273: if (!csRegex || !csData)
274: return NULL;
275:
276: if (!ioRegexVerify(csRegex, csData, &sp, &ep))
277: return NULL;
278:
279: // ___ before match
280: len = sp + 1;
281: str = malloc(len);
282: if (!str) {
283: LOGERR;
284: return NULL;
285: } else
286: strlcpy(str, csData, len);
287: // * replace match *
288: if (csNew) {
289: len += strlen(csNew);
290: str = realloc(str, len);
291: if (!str) {
292: LOGERR;
293: return NULL;
294: } else
295: strlcat(str, csNew, len);
296: }
297: // after match ___
298: len += strlen(csData) - ep;
299: str = realloc(str, len);
300: if (!str) {
301: LOGERR;
302: return NULL;
303: } else
304: strlcat(str, csData + ep, len);
305:
306: return str;
307: }
308:
309: /*
310: * ioVarAst() Function for evaluate string like asterisk variable "{text[:[-]#[:#]]}"
311: * @csString = Input string
312: * return: NULL error, !=NULL Allocated new string evaluated from input string, must be free()
313: */
314: char *
315: ioVarAst(const char *csString)
316: {
317: char *ext, *str, *out = NULL;
318: int e[2] = { 0 };
319:
320: if (!csString)
321: return NULL;
322:
323: if (!strchr(csString, '{') || !strrchr(csString, '}')) {
324: memset(io_Error, 0, STRSIZ);
325: snprintf(io_Error, STRSIZ, "Error:: Invalid input string format ... "
326: "must be like {text[:[-]#[:#]]}");
327: io_Errno = EINVAL;
328: return NULL;
329: } else {
330: str = strdup(strchr(csString, '{') + 1);
331: *strrchr(str, '}') = 0;
332: }
333:
334: if ((ext = strchr(str, ':'))) {
335: *ext++ = 0;
336: e[0] = strtol(ext, NULL, 0);
337: if ((ext = strchr(ext, ':')))
338: e[1] = strtol(++ext, NULL, 0);
339:
340: /* make cut prefix */
341: if (e[0] >= 0)
342: ext = str + e[0];
343: else
344: ext = str + strlen(str) + e[0];
345: /* make cut suffix */
346: if (e[1] > 0)
347: *(ext + e[1]) = 0;
348: } else
349: /* ok, clear show */
350: ext = str;
351:
352: out = strdup(ext);
353: free(str);
354:
355: return out;
356: }
357:
358:
359: /*
360: * ioMkDir() Function for racursive directory creation and validation
361: * @csDir = Full directory path
362: * @mode = Mode for directory creation if missing dir
363: * return: -1 error, 0 directory path exist, >0 created missing dirs
364: */
365: int
366: ioMkDir(const char *csDir, int mode)
367: {
368: char *str, *s, *pbrk, szOld[MAXPATHLEN] = { 0 };
369: register int cx = -1;
370:
371: if (!csDir)
372: return cx;
373:
374: str = strdup(csDir);
375: if (!str) {
376: LOGERR;
377: return cx;
378: }
379:
380: getcwd(szOld, MAXPATHLEN);
381: if (*str == '/')
382: chdir("/");
383:
384: for (cx = 0, s = strtok_r(str, "/", &pbrk); s; s = strtok_r(NULL, "/", &pbrk)) {
385: if (mkdir(s, mode) == -1) {
386: if (errno != EEXIST) {
387: LOGERR;
388: cx = -1;
389: goto end;
390: }
391: } else
392: cx++;
393:
394: if (chdir(s) == -1) {
395: LOGERR;
396: cx = -1;
397: goto end;
398: }
399: }
400: end:
401: chdir(szOld);
402: free(str);
403: return cx;
404: }
405:
406: /*
407: * ioWatchDirLoop() Function for watching changes in directory and fire callback
408: * @csDir = Full directory path
409: * @callback = Callback if raise event! nOp -1 delete, 0 change/move, 1 create
410: * return: -1 error, !=-1 ok, number of total signaled events
411: */
412: int
413: ioWatchDirLoop(const char *csDir, int (*callback)(const char *csName, int nOp))
414: {
415: glob_t g[2] = {{ 0 }, { 0 }};
416: int d, kq, n = 0;
417: register int j, i;
418: struct kevent req, chg;
419: char wrk[MAXPATHLEN * 2], str[MAXPATHLEN] = { 0 };
420:
421: if (!csDir || !callback)
422: return 0;
423:
424: strlcpy(str, csDir, MAXPATHLEN);
425: strlcat(str, "/*", MAXPATHLEN);
426:
427: kq = kqueue();
428: if (kq == -1) {
429: LOGERR;
430: return -1;
431: }
432: d = open(csDir, O_RDONLY);
433: if (d == -1) {
434: LOGERR;
435: close(kq);
436: return -1;
437: }
438:
439: EV_SET(&req, d, EVFILT_VNODE, EV_ADD | EV_CLEAR, NOTE_WRITE, 0, 0);
440:
441: if ((n = glob(str, GLOB_NOCHECK, NULL, &g[0]))) {
442: LOGERR;
443: close(d);
444: close(kq);
445: return -1;
446: } /*else
447: ioDEBUG(3, "Start files %d in %s\n", g[0].gl_matchc, str);*/
448:
449: while (kevent(kq, &req, 1, &chg, 1, NULL) > 0) {
450: /*ioDEBUG(1, "Event:: req=0x%x -> chg=0x%x data=%x\n", req.fflags, chg.fflags, chg.data);*/
451:
452: if (!glob(str, GLOB_NOCHECK, NULL, &g[1])) {
453: /*ioDEBUG(3, "Diffs %d <> %d\n", g[0].gl_matchc, g[1].gl_matchc);*/
454:
455: if (g[0].gl_matchc != g[1].gl_matchc) {
456: /* find new items */
457: for (j = 0; j < g[1].gl_matchc; j++) {
458: for (i = 0; i < g[0].gl_matchc; i++)
459: if (!strcmp(g[0].gl_pathv[i], g[1].gl_pathv[j]))
460: break;
461: if (i == g[0].gl_matchc) {
462: if (callback(g[1].gl_pathv[j], 1) < 0)
463: break;
464: else
465: n++;
466: }
467: }
468: /* find del items */
469: for (j = 0; j < g[0].gl_matchc; j++) {
470: for (i = 0; i < g[1].gl_matchc; i++)
471: if (!strcmp(g[1].gl_pathv[i], g[0].gl_pathv[j]))
472: break;
473: if (i == g[1].gl_matchc) {
474: if (callback(g[0].gl_pathv[j], -1) < 0)
475: break;
476: else
477: n++;
478: }
479: }
480: } else {
481: /* find chg from items */
482: for (j = 0; j < g[0].gl_matchc; j++) {
483: for (i = 0; i < g[1].gl_matchc; i++)
484: if (!strcmp(g[1].gl_pathv[i], g[0].gl_pathv[j]))
485: break;
486: if (i == g[1].gl_matchc) {
487: strlcpy(wrk, g[0].gl_pathv[j], sizeof wrk);
488: strlcat(wrk, ":", sizeof wrk);
489: }
490: }
491: /* find chg to items */
492: for (j = 0; j < g[1].gl_matchc; j++) {
493: for (i = 0; i < g[0].gl_matchc; i++)
494: if (!strcmp(g[0].gl_pathv[i], g[1].gl_pathv[j]))
495: break;
496: if (i == g[0].gl_matchc) {
497: strlcat(wrk, g[1].gl_pathv[j], sizeof wrk);
498: if (callback(wrk, 0) < 0)
499: break;
500: else
501: n++;
502: }
503: }
504: }
505:
506: globfree(&g[0]);
507: g[0] = g[1];
508: }
509: }
510:
511: globfree(&g[0]);
512: close(d);
513: close(kq);
514: return n;
515: }
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/cvsweb/back.gif){kind=icon}
Return to aitio.c CVS log ![[TXT]](/icons/cvsweb/text.gif){kind=icon}
![[DIR]](/icons/cvsweb/dir.gif){kind=icon}
Up to [ELWIX - Embedded LightWeight unIX -] / libaitio / src