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1 /* crypto/bio/bss_fd.c */ | 1 /* crypto/bio/bss_fd.c */ |
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
3 * All rights reserved. | 3 * All rights reserved. |
4 * | 4 * |
5 * This package is an SSL implementation written | 5 * This package is an SSL implementation written |
6 * by Eric Young (eay@cryptsoft.com). | 6 * by Eric Young (eay@cryptsoft.com). |
7 * The implementation was written so as to conform with Netscapes SSL. | 7 * The implementation was written so as to conform with Netscapes SSL. |
8 * | 8 * |
9 * This library is free for commercial and non-commercial use as long as | 9 * This library is free for commercial and non-commercial use as long as |
10 * the following conditions are aheared to. The following conditions | 10 * the following conditions are aheared to. The following conditions |
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53 * The licence and distribution terms for any publically available version or | 53 * The licence and distribution terms for any publically available version or |
54 * derivative of this code cannot be changed. i.e. this code cannot simply be | 54 * derivative of this code cannot be changed. i.e. this code cannot simply be |
55 * copied and put under another distribution licence | 55 * copied and put under another distribution licence |
56 * [including the GNU Public Licence.] | 56 * [including the GNU Public Licence.] |
57 */ | 57 */ |
58 | 58 |
59 #include <stdio.h> | 59 #include <stdio.h> |
60 #include <errno.h> | 60 #include <errno.h> |
61 #define USE_SOCKETS | 61 #define USE_SOCKETS |
62 #include "cryptlib.h" | 62 #include "cryptlib.h" |
| 63 |
| 64 #if defined(OPENSSL_NO_POSIX_IO) |
| 65 /* |
| 66 * One can argue that one should implement dummy placeholder for |
| 67 * BIO_s_fd here... |
| 68 */ |
| 69 #else |
63 /* | 70 /* |
64 * As for unconditional usage of "UPLINK" interface in this module. | 71 * As for unconditional usage of "UPLINK" interface in this module. |
65 * Trouble is that unlike Unix file descriptors [which are indexes | 72 * Trouble is that unlike Unix file descriptors [which are indexes |
66 * in kernel-side per-process table], corresponding descriptors on | 73 * in kernel-side per-process table], corresponding descriptors on |
67 * platforms which require "UPLINK" interface seem to be indexes | 74 * platforms which require "UPLINK" interface seem to be indexes |
68 * in a user-land, non-global table. Well, in fact they are indexes | 75 * in a user-land, non-global table. Well, in fact they are indexes |
69 * in stdio _iob[], and recall that _iob[] was the very reason why | 76 * in stdio _iob[], and recall that _iob[] was the very reason why |
70 * "UPLINK" interface was introduced in first place. But one way on | 77 * "UPLINK" interface was introduced in first place. But one way on |
71 * another. Neither libcrypto or libssl use this BIO meaning that | 78 * another. Neither libcrypto or libssl use this BIO meaning that |
72 * file descriptors can only be provided by application. Therefore | 79 * file descriptors can only be provided by application. Therefore |
73 * "UPLINK" calls are due... | 80 * "UPLINK" calls are due... |
74 */ | 81 */ |
75 #include "bio_lcl.h" | 82 #include "bio_lcl.h" |
76 | 83 |
77 static int fd_write(BIO *h, const char *buf, int num); | 84 static int fd_write(BIO *h, const char *buf, int num); |
78 static int fd_read(BIO *h, char *buf, int size); | 85 static int fd_read(BIO *h, char *buf, int size); |
79 static int fd_puts(BIO *h, const char *str); | 86 static int fd_puts(BIO *h, const char *str); |
| 87 static int fd_gets(BIO *h, char *buf, int size); |
80 static long fd_ctrl(BIO *h, int cmd, long arg1, void *arg2); | 88 static long fd_ctrl(BIO *h, int cmd, long arg1, void *arg2); |
81 static int fd_new(BIO *h); | 89 static int fd_new(BIO *h); |
82 static int fd_free(BIO *data); | 90 static int fd_free(BIO *data); |
83 int BIO_fd_should_retry(int s); | 91 int BIO_fd_should_retry(int s); |
84 | 92 |
85 static BIO_METHOD methods_fdp= | 93 static BIO_METHOD methods_fdp= |
86 { | 94 { |
87 BIO_TYPE_FD,"file descriptor", | 95 BIO_TYPE_FD,"file descriptor", |
88 fd_write, | 96 fd_write, |
89 fd_read, | 97 fd_read, |
90 fd_puts, | 98 fd_puts, |
91 » NULL, /* fd_gets, */ | 99 » fd_gets, |
92 fd_ctrl, | 100 fd_ctrl, |
93 fd_new, | 101 fd_new, |
94 fd_free, | 102 fd_free, |
95 NULL, | 103 NULL, |
96 }; | 104 }; |
97 | 105 |
98 BIO_METHOD *BIO_s_fd(void) | 106 BIO_METHOD *BIO_s_fd(void) |
99 { | 107 { |
100 return(&methods_fdp); | 108 return(&methods_fdp); |
101 } | 109 } |
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220 | 228 |
221 static int fd_puts(BIO *bp, const char *str) | 229 static int fd_puts(BIO *bp, const char *str) |
222 { | 230 { |
223 int n,ret; | 231 int n,ret; |
224 | 232 |
225 n=strlen(str); | 233 n=strlen(str); |
226 ret=fd_write(bp,str,n); | 234 ret=fd_write(bp,str,n); |
227 return(ret); | 235 return(ret); |
228 } | 236 } |
229 | 237 |
| 238 static int fd_gets(BIO *bp, char *buf, int size) |
| 239 { |
| 240 int ret=0; |
| 241 char *ptr=buf; |
| 242 char *end=buf+size-1; |
| 243 |
| 244 while ( (ptr < end) && (fd_read(bp, ptr, 1) > 0) && (ptr[0] != '\n') ) |
| 245 ptr++; |
| 246 |
| 247 ptr[0]='\0'; |
| 248 |
| 249 if (buf[0] != '\0') |
| 250 ret=strlen(buf); |
| 251 return(ret); |
| 252 } |
| 253 |
230 int BIO_fd_should_retry(int i) | 254 int BIO_fd_should_retry(int i) |
231 { | 255 { |
232 int err; | 256 int err; |
233 | 257 |
234 if ((i == 0) || (i == -1)) | 258 if ((i == 0) || (i == -1)) |
235 { | 259 { |
236 err=get_last_sys_error(); | 260 err=get_last_sys_error(); |
237 | 261 |
238 #if defined(OPENSSL_SYS_WINDOWS) && 0 /* more microsoft stupidity? perhaps not?
Ben 4/1/99 */ | 262 #if defined(OPENSSL_SYS_WINDOWS) && 0 /* more microsoft stupidity? perhaps not?
Ben 4/1/99 */ |
239 if ((i == -1) && (err == 0)) | 263 if ((i == -1) && (err == 0)) |
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285 #ifdef EALREADY | 309 #ifdef EALREADY |
286 case EALREADY: | 310 case EALREADY: |
287 #endif | 311 #endif |
288 return(1); | 312 return(1); |
289 /* break; */ | 313 /* break; */ |
290 default: | 314 default: |
291 break; | 315 break; |
292 } | 316 } |
293 return(0); | 317 return(0); |
294 } | 318 } |
| 319 #endif |
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