NeoMutt  2023-03-22
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compress.c File Reference

Shared compression code. More...

#include "config.h"
#include <stdio.h>
#include <string.h>
#include "mutt/lib.h"
#include "lib.h"
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Functions

const char * compress_list (void)
 Get a list of compression backend names. More...
 
const struct ComprOpscompress_get_ops (const char *compr)
 Get the API functions for a compress backend. More...
 

Variables

static const struct ComprOpsCompressOps []
 Backend implementations. More...
 

Detailed Description

Shared compression code.

Authors
  • Tino Reichardt

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

Definition in file compress.c.

Function Documentation

◆ compress_list()

const char * compress_list ( void  )

Get a list of compression backend names.

Return values
ptrComma-space-separated list of names
Note
The caller should free the string

Definition at line 57 of file compress.c.

58{
59 char tmp[256] = { 0 };
60 const struct ComprOps **ops = CompressOps;
61 size_t len = 0;
62
63 for (; *ops; ops++)
64 {
65 if (len != 0)
66 {
67 len += snprintf(tmp + len, sizeof(tmp) - len, ", ");
68 }
69 len += snprintf(tmp + len, sizeof(tmp) - len, "%s", (*ops)->name);
70 }
71
72 return mutt_str_dup(tmp);
73}
static const struct ComprOps * CompressOps[]
Backend implementations.
Definition: compress.c:38
char * mutt_str_dup(const char *str)
Copy a string, safely.
Definition: string.c:250
Definition: lib.h:60
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◆ compress_get_ops()

const struct ComprOps * compress_get_ops ( const char *  compr)

Get the API functions for a compress backend.

Parameters
comprName of the backend
Return values
ptrSet of function pointers

Definition at line 80 of file compress.c.

81{
82 const struct ComprOps **ops = CompressOps;
83
84 if (!compr || !*compr)
85 return *ops;
86
87 for (; *ops; ops++)
88 {
89 if (strcmp(compr, (*ops)->name) == 0)
90 break;
91 }
92
93 return *ops;
94}
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Variable Documentation

◆ CompressOps

const struct ComprOps* CompressOps[]
static
Initial value:
= {
NULL,
}
const struct ComprOps compr_zlib_ops
const struct ComprOps compr_lz4_ops
const struct ComprOps compr_zstd_ops

Backend implementations.

Definition at line 38 of file compress.c.