diff options
Diffstat (limited to 'utils.c')
-rw-r--r-- | utils.c | 36 |
1 files changed, 36 insertions, 0 deletions
@@ -53,3 +53,39 @@ out_free: free(rpath); return ret; } + +/* + * This functions is a helper to write a specific file content and store + * the content inside a variable pointer passed as parameter, the format + * parameter gives the variable type to be write to the file. + * + * @path : directory path containing the file + * @name : name of the file to be read + * @format : the format of the format + * @value : a pointer to a variable to store the content of the file + * Returns 0 on success, -1 otherwise + */ +int file_write_value(const char *path, const char *name, + const char *format, void *value) +{ + FILE *file; + char *rpath; + int ret; + + ret = asprintf(&rpath, "%s/%s", path, name); + if (ret < 0) + return ret; + + file = fopen(rpath, "w"); + if (!file) { + ret = -1; + goto out_free; + } + + ret = fprintf(file, format, value) < 0 ? -1 : 0; + + fclose(file); +out_free: + free(rpath); + return ret; +} |