The Tor Browser / file comparison
comparison: nsprpub/pr/src/io/prstdio.c
nsprpub/pr/src/io/prstdio.c
- changeset 0
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| -1:000000000000 | 0:b3da3f80bf88 |
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| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include "primpl.h" | |
| 7 | |
| 8 #include <string.h> | |
| 9 | |
| 10 /* | |
| 11 ** fprintf to a PRFileDesc | |
| 12 */ | |
| 13 PR_IMPLEMENT(PRUint32) PR_fprintf(PRFileDesc* fd, const char *fmt, ...) | |
| 14 { | |
| 15 va_list ap; | |
| 16 PRUint32 rv; | |
| 17 | |
| 18 va_start(ap, fmt); | |
| 19 rv = PR_vfprintf(fd, fmt, ap); | |
| 20 va_end(ap); | |
| 21 return rv; | |
| 22 } | |
| 23 | |
| 24 PR_IMPLEMENT(PRUint32) PR_vfprintf(PRFileDesc* fd, const char *fmt, va_list ap) | |
| 25 { | |
| 26 /* XXX this could be better */ | |
| 27 PRUint32 rv, len; | |
| 28 char* msg = PR_vsmprintf(fmt, ap); | |
| 29 if (NULL == msg) { | |
| 30 return -1; | |
| 31 } | |
| 32 len = strlen(msg); | |
| 33 #ifdef XP_OS2 | |
| 34 /* | |
| 35 * OS/2 really needs a \r for every \n. | |
| 36 * In the future we should try to use scatter-gather instead of a | |
| 37 * succession of PR_Write. | |
| 38 */ | |
| 39 if (isatty(PR_FileDesc2NativeHandle(fd))) { | |
| 40 PRUint32 last = 0, idx; | |
| 41 PRInt32 tmp; | |
| 42 rv = 0; | |
| 43 for (idx = 0; idx < len+1; idx++) { | |
| 44 if ((idx - last > 0) && (('\n' == msg[idx]) || (idx == len))) { | |
| 45 tmp = PR_Write(fd, msg + last, idx - last); | |
| 46 if (tmp >= 0) { | |
| 47 rv += tmp; | |
| 48 } | |
| 49 last = idx; | |
| 50 } | |
| 51 /* | |
| 52 * if current character is \n, and | |
| 53 * previous character isn't \r, and | |
| 54 * next character isn't \r | |
| 55 */ | |
| 56 if (('\n' == msg[idx]) && | |
| 57 ((0 == idx) || ('\r' != msg[idx-1])) && | |
| 58 ('\r' != msg[idx+1])) { | |
| 59 /* add extra \r */ | |
| 60 tmp = PR_Write(fd, "\r", 1); | |
| 61 if (tmp >= 0) { | |
| 62 rv += tmp; | |
| 63 } | |
| 64 } | |
| 65 } | |
| 66 } else { | |
| 67 rv = PR_Write(fd, msg, len); | |
| 68 } | |
| 69 #else | |
| 70 rv = PR_Write(fd, msg, len); | |
| 71 #endif | |
| 72 PR_DELETE(msg); | |
| 73 return rv; | |
| 74 } |
