55 lines
1.1 KiB
C
55 lines
1.1 KiB
C
#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <ctype.h>
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#include <string.h>
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#include <time.h>
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#include <sys/mman.h>
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#include <sys/stat.h>
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#include "fileLoader.h"
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char *load_file_to_mem(char *filename) {
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int fd = open(filename, O_RDONLY);
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if (fd < 0) {
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printf("\n\"%s \" could not open", filename);
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exit(1);
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}
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struct stat statbuf;
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int err = fstat(fd, &statbuf);
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if (err < 0) {
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printf("\n\"%s \" could not open", filename);
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exit(2);
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}
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char *filecontents = mmap(NULL, statbuf.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
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if (filecontents == MAP_FAILED) {
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printf("Mapping failed");
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exit(3);
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}
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return filecontents;
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}
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int unmap_file(char *ptr, char *filename) {
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int fd = open(filename, O_RDONLY);
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if (fd < 0) {
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printf("\n\"%s \" could not open", filename);
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exit(1);
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}
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struct stat statbuf;
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int err = fstat(fd, &statbuf);
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err = munmap(ptr, statbuf.st_size);
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if (err != 0)
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{
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printf("Unmapping failed");
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return 1;
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}
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return 0;
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}
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