41 lines
1.1 KiB
C
41 lines
1.1 KiB
C
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#include "io.h"
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static uint8_t* read_file(const char* path, size_t* size) {
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// Read the contents of the file specified by path into a heap-allocated
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// buffer and return a pointer to that buffer.
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FILE* f = fopen(path, "r");
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if(f == NULL) {
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printf("Fopen error: %d\n", errno);
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fclose(f);
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return NULL;
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}
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struct stat statOfFile;
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int status = fstat(fileno(f), &statOfFile);
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if(status == -1) {
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printf("Fstat error: %d\n", errno);
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fclose(f);
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return NULL;
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};
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if((statOfFile.st_mode & S_IFMT) != S_IFREG){
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printf("File is not a regular file!\n");
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fclose(f);
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return NULL;
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}
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uint8_t* data = malloc(statOfFile.st_size);
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size_t bytesRead = fread(data, statOfFile.st_blksize, statOfFile.st_blocks, f);
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// Or: size_t bytesRead = fread(data, sizeof(char), statOfFile.st_size, f);
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if(bytesRead != 0 && !feof(f)) {
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printf("Error reading file!\n");
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fclose(f);
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return NULL;
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}
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fclose(f);
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(*size) = bytesRead;
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return data;
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}
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