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authorDaniel Baumann <daniel.baumann@progress-linux.org>2022-02-21 16:09:59 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2022-02-21 16:09:59 +0000
commit4723024d2474cf9686b4c8e88b738c6b04c44d3a (patch)
tree9d113f1b558b667febf14629bb05ff5cf552cba6 /carg_parser.c
parentAdding upstream version 1.12. (diff)
downloadlunzip-4723024d2474cf9686b4c8e88b738c6b04c44d3a.tar.xz
lunzip-4723024d2474cf9686b4c8e88b738c6b04c44d3a.zip
Adding upstream version 1.13.upstream/1.13
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'carg_parser.c')
-rw-r--r--carg_parser.c110
1 files changed, 72 insertions, 38 deletions
diff --git a/carg_parser.c b/carg_parser.c
index d0c05d5..181ba23 100644
--- a/carg_parser.c
+++ b/carg_parser.c
@@ -1,5 +1,5 @@
/* Arg_parser - POSIX/GNU command line argument parser. (C version)
- Copyright (C) 2006-2021 Antonio Diaz Diaz.
+ Copyright (C) 2006-2022 Antonio Diaz Diaz.
This library is free software. Redistribution and use in source and
binary forms, with or without modification, are permitted provided
@@ -32,10 +32,10 @@ static void * ap_resize_buffer( void * buf, const int min_size )
}
-static char push_back_record( struct Arg_parser * const ap,
- const int code, const char * const argument )
+static char push_back_record( struct Arg_parser * const ap, const int code,
+ const char * const long_name,
+ const char * const argument )
{
- const int len = strlen( argument );
struct ap_Record * p;
void * tmp = ap_resize_buffer( ap->data,
( ap->data_size + 1 ) * sizeof (struct ap_Record) );
@@ -43,11 +43,29 @@ static char push_back_record( struct Arg_parser * const ap,
ap->data = (struct ap_Record *)tmp;
p = &(ap->data[ap->data_size]);
p->code = code;
- p->argument = 0;
- tmp = ap_resize_buffer( p->argument, len + 1 );
- if( !tmp ) return 0;
- p->argument = (char *)tmp;
- strncpy( p->argument, argument, len + 1 );
+ if( long_name )
+ {
+ const int len = strlen( long_name );
+ p->parsed_name = (char *)malloc( len + 2 + 1 );
+ if( !p->parsed_name ) return 0;
+ p->parsed_name[0] = p->parsed_name[1] = '-';
+ strncpy( p->parsed_name + 2, long_name, len + 1 );
+ }
+ else if( code > 0 && code < 256 )
+ {
+ p->parsed_name = (char *)malloc( 2 + 1 );
+ if( !p->parsed_name ) return 0;
+ p->parsed_name[0] = '-'; p->parsed_name[1] = code; p->parsed_name[2] = 0;
+ }
+ else p->parsed_name = 0;
+ if( argument )
+ {
+ const int len = strlen( argument );
+ p->argument = (char *)malloc( len + 1 );
+ if( !p->argument ) { free( p->parsed_name ); return 0; }
+ strncpy( p->argument, argument, len + 1 );
+ }
+ else p->argument = 0;
++ap->data_size;
return 1;
}
@@ -68,12 +86,14 @@ static char add_error( struct Arg_parser * const ap, const char * const msg )
static void free_data( struct Arg_parser * const ap )
{
int i;
- for( i = 0; i < ap->data_size; ++i ) free( ap->data[i].argument );
+ for( i = 0; i < ap->data_size; ++i )
+ { free( ap->data[i].argument ); free( ap->data[i].parsed_name ); }
if( ap->data ) { free( ap->data ); ap->data = 0; }
ap->data_size = 0;
}
+/* Return 0 only if out of memory. */
static char parse_long_option( struct Arg_parser * const ap,
const char * const opt, const char * const arg,
const struct ap_Option options[],
@@ -87,9 +107,10 @@ static char parse_long_option( struct Arg_parser * const ap,
/* Test all long options for either exact match or abbreviated matches. */
for( i = 0; options[i].code != 0; ++i )
- if( options[i].name && strncmp( options[i].name, &opt[2], len ) == 0 )
+ if( options[i].long_name &&
+ strncmp( options[i].long_name, &opt[2], len ) == 0 )
{
- if( strlen( options[i].name ) == len ) /* Exact match found */
+ if( strlen( options[i].long_name ) == len ) /* Exact match found */
{ index = i; exact = 1; break; }
else if( index < 0 ) index = i; /* First nonexact match found */
else if( options[index].code != options[i].code ||
@@ -117,35 +138,39 @@ static char parse_long_option( struct Arg_parser * const ap,
{
if( options[index].has_arg == ap_no )
{
- add_error( ap, "option '--" ); add_error( ap, options[index].name );
+ add_error( ap, "option '--" ); add_error( ap, options[index].long_name );
add_error( ap, "' doesn't allow an argument" );
return 1;
}
if( options[index].has_arg == ap_yes && !opt[len+3] )
{
- add_error( ap, "option '--" ); add_error( ap, options[index].name );
+ add_error( ap, "option '--" ); add_error( ap, options[index].long_name );
add_error( ap, "' requires an argument" );
return 1;
}
- return push_back_record( ap, options[index].code, &opt[len+3] );
+ return push_back_record( ap, options[index].code,
+ options[index].long_name, &opt[len+3] );
}
if( options[index].has_arg == ap_yes )
{
if( !arg || !arg[0] )
{
- add_error( ap, "option '--" ); add_error( ap, options[index].name );
+ add_error( ap, "option '--" ); add_error( ap, options[index].long_name );
add_error( ap, "' requires an argument" );
return 1;
}
++*argindp;
- return push_back_record( ap, options[index].code, arg );
+ return push_back_record( ap, options[index].code,
+ options[index].long_name, arg );
}
- return push_back_record( ap, options[index].code, "" );
+ return push_back_record( ap, options[index].code,
+ options[index].long_name, 0 );
}
+/* Return 0 only if out of memory. */
static char parse_short_option( struct Arg_parser * const ap,
const char * const opt, const char * const arg,
const struct ap_Option options[],
@@ -156,13 +181,13 @@ static char parse_short_option( struct Arg_parser * const ap,
while( cind > 0 )
{
int index = -1, i;
- const unsigned char code = opt[cind];
+ const unsigned char c = opt[cind];
char code_str[2];
- code_str[0] = code; code_str[1] = 0;
+ code_str[0] = c; code_str[1] = 0;
- if( code != 0 )
+ if( c != 0 )
for( i = 0; options[i].code; ++i )
- if( code == options[i].code )
+ if( c == options[i].code )
{ index = i; break; }
if( index < 0 )
@@ -176,7 +201,7 @@ static char parse_short_option( struct Arg_parser * const ap,
if( options[index].has_arg != ap_no && cind > 0 && opt[cind] )
{
- if( !push_back_record( ap, code, &opt[cind] ) ) return 0;
+ if( !push_back_record( ap, c, 0, &opt[cind] ) ) return 0;
++*argindp; cind = 0;
}
else if( options[index].has_arg == ap_yes )
@@ -188,9 +213,9 @@ static char parse_short_option( struct Arg_parser * const ap,
return 1;
}
++*argindp; cind = 0;
- if( !push_back_record( ap, code, arg ) ) return 0;
+ if( !push_back_record( ap, c, 0, arg ) ) return 0;
}
- else if( !push_back_record( ap, code, "" ) ) return 0;
+ else if( !push_back_record( ap, c, 0, 0 ) ) return 0;
}
return 1;
}
@@ -203,7 +228,7 @@ char ap_init( struct Arg_parser * const ap,
const char ** non_options = 0; /* skipped non-options */
int non_options_size = 0; /* number of skipped non-options */
int argind = 1; /* index in argv */
- int i;
+ char done = 0; /* false until success */
ap->data = 0;
ap->error = 0;
@@ -223,20 +248,20 @@ char ap_init( struct Arg_parser * const ap,
if( ch2 == '-' )
{
if( !argv[argind][2] ) { ++argind; break; } /* we found "--" */
- else if( !parse_long_option( ap, opt, arg, options, &argind ) ) return 0;
+ else if( !parse_long_option( ap, opt, arg, options, &argind ) ) goto out;
}
- else if( !parse_short_option( ap, opt, arg, options, &argind ) ) return 0;
+ else if( !parse_short_option( ap, opt, arg, options, &argind ) ) goto out;
if( ap->error ) break;
}
else
{
if( in_order )
- { if( !push_back_record( ap, 0, argv[argind++] ) ) return 0; }
+ { if( !push_back_record( ap, 0, 0, argv[argind++] ) ) goto out; }
else
{
void * tmp = ap_resize_buffer( non_options,
( non_options_size + 1 ) * sizeof *non_options );
- if( !tmp ) return 0;
+ if( !tmp ) goto out;
non_options = (const char **)tmp;
non_options[non_options_size++] = argv[argind++];
}
@@ -245,13 +270,15 @@ char ap_init( struct Arg_parser * const ap,
if( ap->error ) free_data( ap );
else
{
+ int i;
for( i = 0; i < non_options_size; ++i )
- if( !push_back_record( ap, 0, non_options[i] ) ) return 0;
+ if( !push_back_record( ap, 0, 0, non_options[i] ) ) goto out;
while( argind < argc )
- if( !push_back_record( ap, 0, argv[argind++] ) ) return 0;
+ if( !push_back_record( ap, 0, 0, argv[argind++] ) ) goto out;
}
- if( non_options ) free( non_options );
- return 1;
+ done = 1;
+out: if( non_options ) free( non_options );
+ return done;
}
@@ -273,13 +300,20 @@ int ap_arguments( const struct Arg_parser * const ap )
int ap_code( const struct Arg_parser * const ap, const int i )
{
- if( i >= 0 && i < ap_arguments( ap ) ) return ap->data[i].code;
- else return 0;
+ if( i < 0 || i >= ap_arguments( ap ) ) return 0;
+ return ap->data[i].code;
+ }
+
+
+const char * ap_parsed_name( const struct Arg_parser * const ap, const int i )
+ {
+ if( i < 0 || i >= ap_arguments( ap ) || !ap->data[i].parsed_name ) return "";
+ return ap->data[i].parsed_name;
}
const char * ap_argument( const struct Arg_parser * const ap, const int i )
{
- if( i >= 0 && i < ap_arguments( ap ) ) return ap->data[i].argument;
- else return "";
+ if( i < 0 || i >= ap_arguments( ap ) || !ap->data[i].argument ) return "";
+ return ap->data[i].argument;
}