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# popt/popt.h File Reference

`#include <stdio.h>`

Go to the source code of this file.

## Data Structures
struct | poptOption
struct | poptAlias
| A popt alias argument for poptAddAlias(). More...
struct | poptItem_s
| A popt alias or exec argument for poptAddItem(). More...
## Auto-generated help/usage
#define | POPT_AUTOALIAS
#define | POPT_AUTOHELP
#define | POPT_TABLEEND { NULL, '\0', 0, 0, 0, NULL, NULL }
poptOption | poptAliasOptions []
| Empty table marker to enable displaying popt alias/exec options.
poptOption | poptHelpOptions []
| Auto help table options.
## Defines
#define | POPT_OPTION_DEPTH 10
Arg type identifiers
#define | POPT_ARG_NONE 0
#define | POPT_ARG_STRING 1
#define | POPT_ARG_INT 2
#define | POPT_ARG_LONG 3
#define | POPT_ARG_INCLUDE_TABLE 4
#define | POPT_ARG_CALLBACK 5
#define | POPT_ARG_INTL_DOMAIN 6
#define | POPT_ARG_VAL 7
#define | POPT_ARG_FLOAT 8
#define | POPT_ARG_DOUBLE 9
#define | POPT_ARG_MASK 0x0000FFFF
Arg modifiers
#define | POPT_ARGFLAG_ONEDASH 0x80000000
#define | POPT_ARGFLAG_DOC_HIDDEN 0x40000000
#define | POPT_ARGFLAG_STRIP 0x20000000
#define | POPT_ARGFLAG_OPTIONAL 0x10000000
#define | POPT_ARGFLAG_OR 0x08000000
#define | POPT_ARGFLAG_NOR 0x09000000
#define | POPT_ARGFLAG_AND 0x04000000
#define | POPT_ARGFLAG_NAND 0x05000000
#define | POPT_ARGFLAG_XOR 0x02000000
#define | POPT_ARGFLAG_NOT 0x01000000
#define | POPT_ARGFLAG_LOGICALOPS (POPT_ARGFLAG_OR|POPT_ARGFLAG_AND|POPT_ARGFLAG_XOR)
#define | POPT_BIT_SET (POPT_ARG_VAL|POPT_ARGFLAG_OR)
#define | POPT_BIT_CLR (POPT_ARG_VAL|POPT_ARGFLAG_NAND)
#define | POPT_ARGFLAG_SHOW_DEFAULT 0x00800000
Callback modifiers
#define | POPT_CBFLAG_PRE 0x80000000
#define | POPT_CBFLAG_POST 0x40000000
#define | POPT_CBFLAG_INC_DATA 0x20000000
#define | POPT_CBFLAG_SKIPOPTION 0x10000000
#define | POPT_CBFLAG_CONTINUE 0x08000000
Error return values
#define | POPT_ERROR_NOARG -10
#define | POPT_ERROR_BADOPT -11
#define | POPT_ERROR_OPTSTOODEEP -13
#define | POPT_ERROR_BADQUOTE -15
#define | POPT_ERROR_ERRNO -16
#define | POPT_ERROR_BADNUMBER -17
#define | POPT_ERROR_OVERFLOW -18
#define | POPT_ERROR_BADOPERATION -19
#define | POPT_ERROR_NULLARG -20
#define | POPT_ERROR_MALLOC -21
poptBadOption() flags
#define | POPT_BADOPTION_NOALIAS (1 << 0)
poptGetContext() flags
#define | POPT_CONTEXT_NO_EXEC (1 << 0)
#define | POPT_CONTEXT_KEEP_FIRST (1 << 1)
#define | POPT_CONTEXT_POSIXMEHARDER (1 << 2)
#define | POPT_CONTEXT_ARG_OPTS (1 << 4)
## Typedefs
typedef poptItem_s * | poptItem
| A popt alias or exec argument for poptAddItem().
typedef poptContext_s * | poptContext
typedef poptOption * | poptOption
typedef void(*) | poptCallbackType (poptContext con, enum poptCallbackReason reason, const struct poptOption *opt, const char *arg, const void *data)
| Table callback prototype.
## Enumerations
enum | poptCallbackReason { POPT_CALLBACK_REASON_PRE, POPT_CALLBACK_REASON_POST, POPT_CALLBACK_REASON_OPTION }
## Functions
poptContext | poptGetContext (const char *name, int argc, const char **argv, const struct poptOption *options, int flags)
| Initialize popt context.
void | poptResetContext (poptContext con)
| Reinitialize popt context.
int | poptGetNextOpt (poptContext con)
| Return value of next option found.
const char * | poptGetOptArg (poptContext con)
| Return next option argument (if any).
const char * | poptGetArg (poptContext con)
| Return current option's argument.
const char * | poptPeekArg (poptContext con)
| Peek at current option's argument.
const char ** | poptGetArgs (poptContext con)
| Return remaining arguments.
const char * | poptBadOption (poptContext con, int flags)
| Return the option which caused the most recent error.
poptContext | poptFreeContext (poptContext con)
| Destroy context.
int | poptStuffArgs (poptContext con, const char **argv)
| Add arguments to context.
int | poptAddAlias (poptContext con, struct poptAlias alias, int flags)
| Add alias to context.
int | poptAddItem (poptContext con, poptItem newItem, int flags)
| Add alias/exec item to context.
int | poptReadConfigFile (poptContext con, const char *fn)
| Read configuration file.
int | poptReadDefaultConfig (poptContext con, int useEnv)
| Read default configuration from /etc/popt and $HOME/.popt.
int | poptDupArgv (int argc, const char **argv, int *argcPtr, const char ***argvPtr)
| Duplicate an argument array.
int | poptParseArgvString (const char *s, int *argcPtr, const char ***argvPtr)
| Parse a string into an argument array.
const char *const | poptStrerror (const int error)
| Return formatted error string for popt failure.
void | poptSetExecPath (poptContext con, const char *path, int allowAbsolute)
| Limit search for executables.
void | poptPrintHelp (poptContext con, FILE *fp, int flags)
| Print detailed description of options.
void | poptPrintUsage (poptContext con, FILE *fp, int flags)
| Print terse description of options.
void | poptSetOtherOptionHelp (poptContext con, const char *text)
| Provide text to replace default "[OPTION...]" in help/usage output.
const char * | poptGetInvocationName (poptContext con)
| Return argv[0] from context.
int | poptStrippedArgv (poptContext con, int argc, char **argv)
| Shuffle argv pointers to remove stripped args, returns new argc.

## Detailed Description

Definition in file popt.h.

## Define Documentation

#define POPT_ARG_CALLBACK 5

table-wide callback... must be set first in table; arg points to callback, descrip points to callback data to pass

Definition at line 25 of file popt.h.

Referenced by findOption(), invokeCallbacksOPTION(), invokeCallbacksPOST(), and invokeCallbacksPRE().

#define POPT_ARG_DOUBLE 9

arg will be converted to double

Definition at line 35 of file popt.h.

Referenced by getArgDescrip(), poptGetNextOpt(), singleOptionDefaultValue(), and singleOptionHelp().

#define POPT_ARG_FLOAT 8

arg will be converted to float

Definition at line 34 of file popt.h.

Referenced by getArgDescrip(), poptGetNextOpt(), singleOptionDefaultValue(), and singleOptionHelp().

#define POPT_ARG_INCLUDE_TABLE 4

arg points to table

Definition at line 24 of file popt.h.

Referenced by findOption(), invokeCallbacksOPTION(), invokeCallbacksPOST(), invokeCallbacksPRE(), maxArgWidth(), showShortOptions(), singleTableHelp(), and singleTableUsage().

#define POPT_ARG_INT 2

arg will be converted to int

Definition at line 22 of file popt.h.

Referenced by getArgDescrip(), poptGetNextOpt(), singleOptionDefaultValue(), and singleOptionHelp().

#define POPT_ARG_INTL_DOMAIN 6

set the translation domain for this table and any included tables; arg points to the domain string

Definition at line 29 of file popt.h.

Referenced by getTableTranslationDomain(), itemUsage(), and singleTableUsage().

#define POPT_ARG_LONG 3

arg will be converted to long

Definition at line 23 of file popt.h.

Referenced by getArgDescrip(), poptGetNextOpt(), singleOptionDefaultValue(), and singleOptionHelp().

#define POPT_ARG_MASK 0x0000FFFF

Definition at line 37 of file popt.h.

Referenced by findOption(), getArgDescrip(), invokeCallbacksOPTION(), invokeCallbacksPOST(), invokeCallbacksPRE(), itemUsage(), maxArgWidth(), poptGetNextOpt(), showShortOptions(), singleOptionDefaultValue(), singleOptionHelp(), singleOptionUsage(), singleTableHelp(), and singleTableUsage().

#define POPT_ARG_NONE 0

no arg

Definition at line 20 of file popt.h.

Referenced by getArgDescrip(), poptGetNextOpt(), singleOptionDefaultValue(), and singleOptionHelp().

#define POPT_ARG_STRING 1

arg will be saved as string

Definition at line 21 of file popt.h.

Referenced by configLine(), getArgDescrip(), poptGetNextOpt(), singleOptionDefaultValue(), and singleOptionHelp().

#define POPT_ARG_VAL 7

arg should take value val

Definition at line 33 of file popt.h.

Referenced by getArgDescrip(), poptGetNextOpt(), singleOptionDefaultValue(), and singleOptionHelp().

#define POPT_ARGFLAG_AND 0x04000000

arg will be and'ed

Definition at line 51 of file popt.h.

Referenced by poptSaveInt(), poptSaveLong(), and singleOptionHelp().

#define POPT_ARGFLAG_DOC_HIDDEN 0x40000000

don't show in help/usage

Definition at line 45 of file popt.h.

Referenced by configLine(), itemHelp(), itemUsage(), maxArgWidth(), poptAddAlias(), and singleTableHelp().

#define POPT_ARGFLAG_LOGICALOPS (POPT_ARGFLAG_OR|POPT_ARGFLAG_AND|POPT_ARGFLAG_XOR)

Definition at line 55 of file popt.h.

Referenced by poptSaveInt(), poptSaveLong(), and singleOptionHelp().

#define POPT_ARGFLAG_NAND 0x05000000

arg will be nand'ed

Definition at line 52 of file popt.h.

#define POPT_ARGFLAG_NOR 0x09000000

arg will be nor'ed

Definition at line 50 of file popt.h.

#define POPT_ARGFLAG_NOT 0x01000000

arg will be negated

Definition at line 54 of file popt.h.

Referenced by poptSaveInt(), poptSaveLong(), and singleOptionHelp().

#define POPT_ARGFLAG_ONEDASH 0x80000000

allow -longoption

Definition at line 44 of file popt.h.

Referenced by maxArgWidth(), poptGetNextOpt(), singleOptionHelp(), and singleOptionUsage().

#define POPT_ARGFLAG_OPTIONAL 0x10000000

arg may be missing

Definition at line 47 of file popt.h.

Referenced by maxArgWidth(), poptGetNextOpt(), and singleOptionHelp().

#define POPT_ARGFLAG_OR 0x08000000

arg will be or'ed

Definition at line 49 of file popt.h.

Referenced by poptSaveInt(), poptSaveLong(), and singleOptionHelp().

#define POPT_ARGFLAG_SHOW_DEFAULT 0x00800000

show default value in --help

Definition at line 63 of file popt.h.

Referenced by singleOptionHelp().

#define POPT_ARGFLAG_STRIP 0x20000000

strip this arg from argv(only applies to long args)

Definition at line 46 of file popt.h.

Referenced by poptGetNextOpt().

#define POPT_ARGFLAG_XOR 0x02000000

arg will be xor'ed

Definition at line 53 of file popt.h.

Referenced by poptSaveInt(), poptSaveLong(), and singleOptionHelp().

#define POPT_AUTOALIAS

Value:

    { NULL, '\0', POPT_ARG_INCLUDE_TABLE, poptAliasOptions, \
                            0, "Options implemented via popt alias/exec:", NULL },

Definition at line 153 of file popt.h.

#define POPT_AUTOHELP

Value:

    { NULL, '\0', POPT_ARG_INCLUDE_TABLE, poptHelpOptions, \
                            0, "Help options:", NULL },

Definition at line 161 of file popt.h.

#define POPT_BADOPTION_NOALIAS (1 << 0)

don't go into an alias

Definition at line 99 of file popt.h.

Referenced by doSetupMacro(), main(), parseDescription(), parseFiles(), parseScript(), and poptBadOption().

#define POPT_BIT_CLR (POPT_ARG_VAL|POPT_ARGFLAG_NAND)

clear arg bit(s)

Definition at line 60 of file popt.h.

#define POPT_BIT_SET (POPT_ARG_VAL|POPT_ARGFLAG_OR)

set arg bit(s)

Definition at line 58 of file popt.h.

#define POPT_CBFLAG_CONTINUE 0x08000000

continue callbacks with option

Definition at line 76 of file popt.h.

#define POPT_CBFLAG_INC_DATA 0x20000000

use data from the include line, not the subtable

Definition at line 73 of file popt.h.

#define POPT_CBFLAG_POST 0x40000000

call the callback after parse

Definition at line 72 of file popt.h.

Referenced by invokeCallbacksPOST().

#define POPT_CBFLAG_PRE 0x80000000

call the callback before parse

Definition at line 71 of file popt.h.

Referenced by invokeCallbacksPRE().

#define POPT_CBFLAG_SKIPOPTION 0x10000000

don't callback with option

Definition at line 75 of file popt.h.

Referenced by invokeCallbacksOPTION().

#define POPT_CONTEXT_ARG_OPTS (1 << 4)

return args as options with value 0

Definition at line 109 of file popt.h.

Referenced by poptGetNextOpt().

#define POPT_CONTEXT_KEEP_FIRST (1 << 1)

pay attention to argv[0]

Definition at line 107 of file popt.h.

Referenced by poptGetContext(), and showHelpIntro().

#define POPT_CONTEXT_NO_EXEC (1 << 0)

ignore exec expansions

Definition at line 106 of file popt.h.

Referenced by handleExec().

#define POPT_CONTEXT_POSIXMEHARDER (1 << 2)

options can't follow args

Definition at line 108 of file popt.h.

Referenced by poptGetContext(), and poptGetNextOpt().

#define POPT_ERROR_BADNUMBER -17

invalid numeric value

Definition at line 88 of file popt.h.

Referenced by poptGetNextOpt(), and poptStrerror().

#define POPT_ERROR_BADOPERATION -19

mutually exclusive logical operations requested

Definition at line 90 of file popt.h.

Referenced by poptGetNextOpt(), poptSaveInt(), poptSaveLong(), and poptStrerror().

#define POPT_ERROR_BADOPT -11

unknown option

Definition at line 84 of file popt.h.

Referenced by poptGetNextOpt(), and poptStrerror().

#define POPT_ERROR_BADQUOTE -15

error in paramter quoting

Definition at line 86 of file popt.h.

Referenced by poptParseArgvString(), and poptStrerror().

#define POPT_ERROR_ERRNO -16

errno set, use strerror(errno)

Definition at line 87 of file popt.h.

Referenced by execCommand(), poptReadConfigFile(), and poptStrerror().

#define POPT_ERROR_MALLOC -21

memory allocation failed

Definition at line 92 of file popt.h.

Referenced by execCommand(), poptDupArgv(), poptParseArgvString(), and poptStrerror().

#define POPT_ERROR_NOARG -10

missing argument

Definition at line 83 of file popt.h.

Referenced by execCommand(), poptDupArgv(), poptGetNextOpt(), and poptStrerror().

#define POPT_ERROR_NULLARG -20

opt->arg should not be NULL

Definition at line 91 of file popt.h.

Referenced by poptSaveInt(), poptSaveLong(), and poptStrerror().

#define POPT_ERROR_OPTSTOODEEP -13

aliases nested too deeply

Definition at line 85 of file popt.h.

Referenced by handleAlias(), poptStrerror(), and poptStuffArgs().

#define POPT_ERROR_OVERFLOW -18

number too large or too small

Definition at line 89 of file popt.h.

Referenced by poptGetNextOpt(), and poptStrerror().

#define POPT_OPTION_DEPTH 10

Definition at line 14 of file popt.h.

Referenced by handleAlias(), and poptStuffArgs().

#define POPT_TABLEEND { NULL, '\0', 0, 0, 0, NULL, NULL }

Definition at line 164 of file popt.h.

## Enumeration Type Documentation

enum poptCallbackReason

Enumerator:

  POPT_CALLBACK_REASON_PRE |
  POPT_CALLBACK_REASON_POST |
  POPT_CALLBACK_REASON_OPTION |

Definition at line 179 of file popt.h.

## Variable Documentation

struct poptOption poptAliasOptions[]

Empty table marker to enable displaying popt alias/exec options.

Definition at line 42 of file popthelp.c.

Referenced by singleTableHelp().

struct poptOption poptHelpOptions[]

Auto help table options.

Definition at line 51 of file popthelp.c.

Referenced by getArgDescrip().