X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=doc%2Fman3%2FBIO_s_file.pod;h=96bbf454fcefb48ff3d1ea5d2d279c2ef0c73d28;hp=e19d82429010f7867ab1933bf1ac186009a70b19;hb=f41ac0eeab9d2889d44e3acf6ff1e8274d03d73e;hpb=99d63d4662e16afbeff49f29b48f1c87d5558ed0 diff --git a/doc/man3/BIO_s_file.pod b/doc/man3/BIO_s_file.pod index e19d824290..96bbf454fc 100644 --- a/doc/man3/BIO_s_file.pod +++ b/doc/man3/BIO_s_file.pod @@ -10,7 +10,7 @@ BIO_rw_filename - FILE bio #include - const BIO_METHOD * BIO_s_file(void); + const BIO_METHOD *BIO_s_file(void); BIO *BIO_new_file(const char *filename, const char *mode); BIO *BIO_new_fp(FILE *stream, int flags); @@ -28,7 +28,7 @@ BIO_s_file() returns the BIO file method. As its name implies it is a wrapper round the stdio FILE structure and it is a source/sink BIO. -Calls to BIO_read() and BIO_write() read and write data to the +Calls to BIO_read_ex() and BIO_write_ex() read and write data to the underlying stream. BIO_gets() and BIO_puts() are supported on file BIOs. BIO_flush() on a file BIO calls the fflush() function on the wrapped @@ -54,7 +54,7 @@ BIO_CLOSE, BIO_NOCLOSE (the close flag) BIO_FP_TEXT (sets the underlying stream to text mode, default is binary: this only has any effect under Win32). -BIO_set_fp() set the fp of a file BIO to B. B has the same +BIO_set_fp() sets the fp of a file BIO to B. B has the same meaning as in BIO_new_fp(), it is a macro. BIO_get_fp() retrieves the fp of a file BIO, it is a macro. @@ -78,59 +78,68 @@ in stdio behaviour will be mirrored by the corresponding BIO. On Windows BIO_new_files reserves for the filename argument to be UTF-8 encoded. In other words if you have to make it work in multi- -lingual environment, encode file names in UTF-8. +lingual environment, encode filenames in UTF-8. + +=head1 RETURN VALUES + +BIO_s_file() returns the file BIO method. + +BIO_new_file() and BIO_new_fp() return a file BIO or NULL if an error +occurred. + +BIO_set_fp() and BIO_get_fp() return 1 for success or 0 for failure +(although the current implementation never return 0). + +BIO_seek() returns the same value as the underlying fseek() function: +0 for success or -1 for failure. + +BIO_tell() returns the current file position. + +BIO_read_filename(), BIO_write_filename(), BIO_append_filename() and +BIO_rw_filename() return 1 for success or 0 for failure. =head1 EXAMPLES File BIO "hello world": BIO *bio_out; + bio_out = BIO_new_fp(stdout, BIO_NOCLOSE); BIO_printf(bio_out, "Hello World\n"); Alternative technique: BIO *bio_out; + bio_out = BIO_new(BIO_s_file()); - if (bio_out == NULL) /* Error ... */ - if (!BIO_set_fp(bio_out, stdout, BIO_NOCLOSE)) /* Error ... */ + if (bio_out == NULL) + /* Error */ + if (!BIO_set_fp(bio_out, stdout, BIO_NOCLOSE)) + /* Error */ BIO_printf(bio_out, "Hello World\n"); Write to a file: BIO *out; + out = BIO_new_file("filename.txt", "w"); - if (!out) /* Error occurred */ + if (!out) + /* Error */ BIO_printf(out, "Hello World\n"); BIO_free(out); Alternative technique: BIO *out; + out = BIO_new(BIO_s_file()); - if (out == NULL) /* Error ... */ - if (!BIO_write_filename(out, "filename.txt")) /* Error ... */ + if (out == NULL) + /* Error */ + if (!BIO_write_filename(out, "filename.txt")) + /* Error */ BIO_printf(out, "Hello World\n"); BIO_free(out); -=head1 RETURN VALUES - -BIO_s_file() returns the file BIO method. - -BIO_new_file() and BIO_new_fp() return a file BIO or NULL if an error -occurred. - -BIO_set_fp() and BIO_get_fp() return 1 for success or 0 for failure -(although the current implementation never return 0). - -BIO_seek() returns the same value as the underlying fseek() function: -0 for success or -1 for failure. - -BIO_tell() returns the current file position. - -BIO_read_filename(), BIO_write_filename(), BIO_append_filename() and -BIO_rw_filename() return 1 for success or 0 for failure. - =head1 BUGS BIO_reset() and BIO_seek() are implemented using fseek() on the underlying @@ -142,16 +151,16 @@ occurred this differs from other types of BIO which will typically return L, L, L, L, -L, -L, L, +L, +L, L, L, L, L, L =head1 COPYRIGHT -Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved. +Copyright 2000-2018 The OpenSSL Project Authors. All Rights Reserved. -Licensed under the OpenSSL license (the "License"). You may not use +Licensed under the Apache License 2.0 (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at L.