diff options
Diffstat (limited to 'lib/comp')
| -rw-r--r-- | lib/comp/compressor.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/lib/comp/compressor.c b/lib/comp/compressor.c index 6dff416..506df46 100644 --- a/lib/comp/compressor.c +++ b/lib/comp/compressor.c @@ -47,6 +47,15 @@ static const compressor_help_fun_t helpfuns[SQFS_COMP_MAX + 1] = { #endif }; +static const char *names[] = { + [SQFS_COMP_GZIP] = "gzip", + [SQFS_COMP_LZMA] = "lzma", + [SQFS_COMP_LZO] = "lzo", + [SQFS_COMP_XZ] = "xz", + [SQFS_COMP_LZ4] = "lz4", + [SQFS_COMP_ZSTD] = "zstd", +}; + int generic_write_options(int fd, const void *data, size_t size) { uint8_t buffer[size + 2]; @@ -129,6 +138,42 @@ void compressor_print_help(E_SQFS_COMPRESSOR id) helpfuns[id](); } +void compressor_print_available(void) +{ + size_t i; + + fputs("Available compressors:\n", stdout); + + for (i = 0; i < sizeof(names) / sizeof(names[0]); ++i) { + if (compressor_exists(i)) + printf("\t%s\n", names[i]); + } + + printf("\nDefault compressor: %s\n", names[compressor_get_default()]); +} + +const char *compressor_name_from_id(E_SQFS_COMPRESSOR id) +{ + if (id < 0 || (size_t)id > sizeof(names) / sizeof(names[0])) + return NULL; + + return names[id]; +} + +int compressor_id_from_name(const char *name, E_SQFS_COMPRESSOR *out) +{ + size_t i; + + for (i = 0; i < sizeof(names) / sizeof(names[0]); ++i) { + if (names[i] != NULL && strcmp(names[i], name) == 0) { + *out = i; + return 0; + } + } + + return -1; +} + E_SQFS_COMPRESSOR compressor_get_default(void) { #if defined(WITH_XZ) |