ESPTerm - ESP8266 terminal emulator. Branches: [master] patches, [work] next release
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espterm-firmware/libesphttpd/espfs/espfstest/main.c

67 lines
1.3 KiB

/*
Simple and stupid file decompressor for an espfs image. Mostly used as a testbed for espfs.c and
the decompressors: code compiled natively is way easier to debug using gdb et all :)
*/
#include <stdio.h>
#include <stdint.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
#include "espfs.h"
char *espFsData;
int main(int argc, char **argv) {
int f, out;
int len;
char buff[128];
EspFsFile *ef;
off_t size;
EspFsInitResult ir;
if (argc!=3) {
printf("Usage: %s espfs-image file\nExpands file from the espfs-image archive.\n", argv[0]);
exit(0);
}
f=open(argv[1], O_RDONLY);
if (f<=0) {
perror(argv[1]);
exit(1);
}
size=lseek(f, 0, SEEK_END);
espFsData=mmap(NULL, size, PROT_READ, MAP_SHARED, f, 0);
if (espFsData==MAP_FAILED) {
perror("mmap");
exit(1);
}
ir=espFsInit(espFsData);
if (ir != ESPFS_INIT_RESULT_OK) {
printf("Couldn't init espfs filesystem (code %d)\n", ir);
exit(1);
}
ef=espFsOpen(argv[2]);
if (ef==NULL) {
printf("Couldn't find %s in image.\n", argv[2]);
exit(1);
}
out=open(argv[2], O_WRONLY|O_CREAT|O_TRUNC, 0644);
if (out<=0) {
perror(argv[2]);
exit(1);
}
while ((len=espFsRead(ef, buff, 128))!=0) {
write(out, buff, len);
}
espFsClose(ef);
//munmap, close, ... I can't be bothered.
}