NeroReflex/ROGueENEMY
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

moved inline_read_file and inline_write_file

Browse source
This commit is contained in:
Denis 2024-02-20 02:02:40 +01:00
parent 3834651c0e
commit c68e06a88b
No known key found for this signature in database
GPG key ID: DD9B63F805CF5C03
3 changed files with 97 additions and 94 deletions
Download patch file Download diff file Expand all files Collapse all files

86
rogue_enemy.c
View file

@ -41,4 +41,88 @@ int dmi_name_fd = open("/sys/class/dmi/id/board_name", O_RDONLY | O_NONBLOCK);
close(dmi_name_fd);
return ret;
}
}
char* inline_read_file(const char* base_path, const char *file) {
char* res = NULL;
char* fdir = NULL;
long len = 0;
len = strlen(base_path) + strlen(file) + 1;
fdir = malloc(len);
if (fdir == NULL) {
fprintf(stderr, "Cannot allocate %ld bytes for device path, device skipped.\n", len);
goto read_file_err;
}
strcpy(fdir, base_path);
strcat(fdir, file);
if (access(fdir, F_OK) == 0) {
FILE* fp = fopen(fdir, "r");
if (fp != NULL) {
fseek(fp, 0L, SEEK_END);
len = ftell(fp);
rewind(fp);
len += 1;
res = malloc(len);
if (res != NULL) {
unsigned long read_bytes = fread(res, 1, len, fp);
printf("Read %lu bytes from file %s\n", read_bytes, fdir);
} else {
fprintf(stderr, "Cannot allocate %ld bytes for %s content.\n", len, fdir);
}
fclose(fp);
} else {
fprintf(stderr, "Cannot open file %s.\n", fdir);
}
} else {
fprintf(stderr, "File %s does not exists.\n", fdir);
}
free(fdir);
fdir = NULL;
read_file_err:
return res;
}
int inline_write_file(const char* base_path, const char *file, const void* buf, size_t buf_sz) {
char* fdir = NULL;
int res = 0;
const size_t len = strlen(base_path) + strlen(file) + 1;
fdir = malloc(len);
if (fdir == NULL) {
fprintf(stderr, "Cannot allocate %ld bytes for device path, device skipped.\n", len);
goto inline_write_file_err;
}
strcpy(fdir, base_path);
strcat(fdir, file);
if (access(fdir, F_OK) == 0) {
FILE* fp = fopen(fdir, "w");
if (fp != NULL) {
res = fwrite(buf, 1, buf_sz, fp);
if (res >= buf_sz) {
printf("Written %d bytes to file %s\n", res, fdir);
} else {
fprintf(stderr, "Cannot write to %s: %d.\n", fdir, res);
}
fclose(fp);
} else {
fprintf(stderr, "Cannot open file %s.\n", fdir);
}
} else {
fprintf(stderr, "File %s does not exists.\n", fdir);
}
free(fdir);
fdir = NULL;
inline_write_file_err:
return res;
}