diff options
| -rw-r--r-- | lib/libc/include/stdio.h | 2 | ||||
| -rw-r--r-- | lib/libc/src/stdio/fclose.c | 48 | ||||
| -rw-r--r-- | lib/libc/src/stdio/fopen.c | 72 |
3 files changed, 122 insertions, 0 deletions
diff --git a/lib/libc/include/stdio.h b/lib/libc/include/stdio.h index 4bbe81a..708f200 100644 --- a/lib/libc/include/stdio.h +++ b/lib/libc/include/stdio.h @@ -74,6 +74,8 @@ __BEGIN_DECLS size_t fread(void *__restrict ptr, size_t size, size_t n, FILE *__restrict stream); size_t fwrite(const void *__restrict ptr, size_t size, size_t n, FILE *__restrict stream); +FILE *fopen(const char *__restrict path, const char *__restrict mode); +int fclose(FILE *stream); int vsnprintf(char *s, size_t size, const char *fmt, va_list ap); int snprintf(char *s, size_t size, const char *fmt, ...); diff --git a/lib/libc/src/stdio/fclose.c b/lib/libc/src/stdio/fclose.c new file mode 100644 index 0000000..7628973 --- /dev/null +++ b/lib/libc/src/stdio/fclose.c @@ -0,0 +1,48 @@ +/* + * Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team. + * 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. Neither the name of Hyra 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 THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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 <sys/types.h> +#include <sys/errno.h> +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> + +int +fclose(FILE *stream) +{ + int retval; + + if (stream == NULL) { + return -EBADF; + } + + retval = close(stream->fd); + free(stream); + return retval; +} diff --git a/lib/libc/src/stdio/fopen.c b/lib/libc/src/stdio/fopen.c new file mode 100644 index 0000000..c15dace --- /dev/null +++ b/lib/libc/src/stdio/fopen.c @@ -0,0 +1,72 @@ +/* + * Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team. + * 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. Neither the name of Hyra 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 THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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 <sys/types.h> +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <fcntl.h> + +FILE * +fopen(const char *__restrict path, const char *__restrict mode) +{ + FILE *fhand; + int fd; + mode_t seal = 0; + + if (path == NULL || mode == NULL) { + return NULL; + } + + /* Create the seal from mode string */ + if (strcmp(mode, "r") == 0) { + seal |= O_RDONLY; + } else if (strcmp(mode, "w") == 0) { + seal |= (O_WRONLY | O_CREAT); + } else if (strcmp(mode, "r+") == 0) { + seal |= O_RDWR; + } else { + return NULL; + } + + /* Try to open the file descriptor */ + fd = open(path, seal); + if (fd < 0) { + return NULL; + } + + fhand = malloc(sizeof(*fhand)); + if (fhand == NULL) { + return NULL; + } + + fhand->fd = fd; + fhand->buf_mode = _IONBF; + return fhand; +} |