diff options
Diffstat (limited to 'src/io/file.c')
| -rw-r--r-- | src/io/file.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/src/io/file.c b/src/io/file.c new file mode 100644 index 0000000..8ce8eef --- /dev/null +++ b/src/io/file.c @@ -0,0 +1,61 @@ +#include <stdio.h> +#include <stdlib.h> + +#include "io/file.h" + +bool read_file(const char* path, struct File* out) +{ + FILE* stream = fopen(path, "rb"); + if (stream == NULL) + { + fprintf(stderr, "error: could not open '%s'\n", path); + return false; + } + + if (fseek(stream, 0, SEEK_END) != 0) + { + fprintf(stderr, "error: could not read '%s'\n", path); + fclose(stream); + return false; + } + + long length = ftell(stream); + if (length < 0) + { + fprintf(stderr, "error: could not read '%s'\n", path); + fclose(stream); + return false; + } + rewind(stream); + + size_t size = (size_t)length; + char* data = malloc(size + 1); + if (data == NULL) + { + fprintf(stderr, "error: out of memory reading '%s'\n", path); + fclose(stream); + return false; + } + + if (fread(data, 1, size, stream) != size) + { + fprintf(stderr, "error: could not read '%s'\n", path); + free(data); + fclose(stream); + return false; + } + + data[size] = '\0'; + fclose(stream); + + out->data = data; + out->size = size; + return true; +} + +void free_file(struct File* file) +{ + free(file->data); + file->data = NULL; + file->size = 0; +} |
