Blame src/main/pe_map_raw_image.c

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#include <stdint.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <limits.h>
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#include <errno.h>
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#include <sys/mman.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <perk/perk.h>
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int pe_map_raw_image (int fd, const char * fname, struct pe_raw_image * map)
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{
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	struct stat stat;
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	int nfd, ret;
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	if ((nfd = !fd))
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		fd  = open(fname,O_RDONLY | O_CLOEXEC);
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	if ((fd < 0) || (fstat(fd,&stat) < 0))
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		return errno;
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	map->size = stat.st_size;
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	map->addr = (char *)mmap(0,map->size,PROT_READ,MAP_PRIVATE,fd,0);
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	if (map->addr == MAP_FAILED) {
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		map->addr = 0;
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		ret = PERK_MAP_ERROR;
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	} else
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		ret = 0;
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	if (nfd) close(fd);
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	return ret;
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}
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int pe_unmap_raw_image (struct pe_raw_image * map)
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{
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	return munmap(map->addr, map->size);
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}