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cliopts start

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This commit is contained in:
Jack Halford 2017-03-26 00:54:00 +01:00
parent 25362e802e
commit 72a6016278
7 changed files with 124 additions and 67 deletions
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3
nm-otool/Makefile
View file

@ -43,7 +43,8 @@ hexdump.c\
mach_o_parse.c\
sym_dump.c\
sym_format.c\
symbol_init.c
symbol_init.c\
symbol_sort.c
SRCS = $(addprefix $(SRC_DIR), $(SRC_BASE))
OBJS = $(addprefix $(OBJ_DIR), $(SRC_BASE:.c=.o))

33
nm-otool/includes/ft_nm_otool.h
View file

@ -29,6 +29,11 @@
# define IS_MAGIC_64(x) (x == MH_MAGIC_64 || x == MH_CIGAM_64)
# define IS_FAT(x) (x == FAT_MAGIC || x == FAT_CIGAM)
# define NM_NSORT (1 << 0)
# define NM_ASORT (1 << 1)
# define NM_RSORT (1 << 1)
typedef t_data_template t_nmdata;
typedef enum e_symtype t_symtype;
typedef struct s_symbol t_symbol;
typedef struct s_symbolmap t_symbolmap;
@ -62,6 +67,7 @@ struct s_symbol
t_symtype type;
int pos;
struct nlist_64 nlist;
char *sect_name;
char *string;
};
@ -74,23 +80,24 @@ struct s_symbolmap
extern t_symbolmap g_symbolmap[];
extern t_machodata *g_data;
int mach_o_parse(t_machodata *data);
int fetch_header(t_machodata *data);
int mach_o_parse(t_machodata *data);
int fetch_header(t_machodata *data);
int symbol_init(t_symbol *symbol,
int symbol_init(t_symbol *symbol,
char *stringtable, struct nlist_64 *array, int i);
int symbol_set(t_symbol *symbol);
int symbol_set(t_symbol *symbol, t_machodata *data);
int symbol_sort(t_list **syms, t_flag flag);
int sym_format(t_symbol *symbol);
int sym_format_undf(t_symbolmap map, t_symbol *symbol);
int sym_format_text(t_symbolmap map, t_symbol *symbol);
int sym_format_stab(t_symbolmap map, t_symbol *symbol);
int sym_format(t_symbol *symbol);
int sym_format_undf(t_symbolmap map, t_symbol *symbol);
int sym_format_text(t_symbolmap map, t_symbol *symbol);
int sym_format_stab(t_symbolmap map, t_symbol *symbol);
void dump_symbol(t_machodata *data, t_symbol *symbol);
void dump_machheader_64(t_machodata *data);
void dump_segment_64(t_machodata *data, struct segment_command_64 *seg);
void dump_symtab(t_machodata *data, struct symtab_command *symtab);
void dump_dysymtab(t_machodata *data, struct dysymtab_command *dysymtab);
void dump_symbol(t_machodata *data, t_symbol *symbol);
void mach_64_parse(t_machodata *data);
void dump_segment_64(t_machodata *data, struct segment_command_64 *seg);
void dump_symtab(t_machodata *data, struct symtab_command *symtab);
void dump_dysymtab(t_machodata *data, struct dysymtab_command *dysymtab);
void *hexdump(void *addr, unsigned int offset, unsigned int size);

22
nm-otool/src/fetch_header.c
View file

@ -12,7 +12,7 @@
#include "ft_nm_otool.h"
static void fetch_symtab(t_machodata *data, struct symtab_command *symtab)
static void symtab_parse(t_machodata *data, struct symtab_command *symtab)
{
int i;
t_symbol symbol;
@ -26,6 +26,7 @@ static void fetch_symtab(t_machodata *data, struct symtab_command *symtab)
while (++i < (int)symtab->nsyms)
{
symbol_init(&symbol, stringtable, array, i);
symbol_set(&symbol, data);
ft_lsteadd(&data->symbols, ft_lstnew(&symbol, sizeof(symbol)));
}
}
@ -49,7 +50,7 @@ static void fetch_sects(t_machodata *data, struct segment_command_64 *seg)
}
}
static void fetch_machheader64(t_machodata *data)
void mach_64_parse(t_machodata *data)
{
uint32_t ncmds;
uint32_t i;
@ -62,7 +63,7 @@ static void fetch_machheader64(t_machodata *data)
for (i = 0; i < ncmds; i++)
{
if (lc->cmd == LC_SYMTAB)
fetch_symtab(data, (struct symtab_command*)lc);
symtab_parse(data, (struct symtab_command*)lc);
/* else if (lc->cmd == LC_DYSYMTAB) */
/* data->dysymtab = (struct dysymtab_command*)lc; */
else if (lc->cmd == LC_SEGMENT_64)
@ -90,18 +91,3 @@ static void fetch_machheader64(t_machodata *data)
/* } */
/* } */
int fetch_header(t_machodata *data)
{
uint32_t magic = *(int *)data->file;
/* int is_fat = IS_FAT(magic); */
int is_64 = IS_MAGIC_64(magic);
if (is_64)
fetch_machheader64(data);
/* else if (is_fat) */
/* fetch_fatheader(data); */
else
ft_printf("{red}unsupported architecture:{eoc} magic = %#x\n", magic);
return (0);
}

92
nm-otool/src/ft_nm.c
View file

@ -14,39 +14,79 @@
t_machodata *g_data = NULL;
void nm(void *file)
t_cliopts g_nm_opts[] =
{
t_machodata data;
{'n', NULL, NM_NSORT, NM_ASORT, NULL, 0},
{'p', NULL, 0, NM_NSORT | NM_ASORT, NULL, 0},
{'r', NULL, NM_RSORT, 0, NULL, 0},
data.sects = NULL;
data.symbols = NULL;
data.file = file;
fetch_header(&data);
dump_symtab(&data, data.symtab);
g_data = &data;
ft_lstiter(data.symbols, symbol_set);
ft_lstiter(data.symbols, sym_format);
{'g', NULL, 0, 0, NULL, 0},
{'u', NULL, 0, 0, NULL, 0},
{'a', NULL, 0, 0, NULL, 0},
{'U', NULL, 0, 0, NULL, 0},
{'o', NULL, 0, 0, NULL, 0},
{'A', NULL, 0, 0, NULL, 0},
{'m', NULL, 0, 0, NULL, 0},
{'x', NULL, 0, 0, NULL, 0},
{'j', NULL, 0, 0, NULL, 0},
};
void mach_64_dump(struct mach_header_64 *file, t_nmdata *data)
{
t_machodata mach;
mach.sects = NULL;
mach.symbols = NULL;
mach.file = file;
mach_64_parse(&mach);
dump_symtab(&mach, mach.symtab);
symbol_sort(&mach.symbols, data->flag);
ft_lstiter(mach.symbols, sym_format);
}
int nm(void *file, t_nmdata *data)
{
uint32_t magic = *(int *)file;
int is_fat = IS_FAT(magic);
int is_64 = IS_MAGIC_64(magic);
if (is_64)
{
ft_printf("{red}unsupported architecture:{eoc} magic = %#x (FAT)\n", magic);
mach_64_dump(file, data);
}
else if (is_fat)
ft_printf("{red}unsupported architecture:{eoc} magic = %#x (FAT)\n", magic);
else
ft_printf("{red}unsupported architecture:{eoc} magic = %#x\n", magic);
return (0);
}
int main(int ac, char **av)
{
int fd;
char *file;
struct stat buf;
if (ac != 2)
char *file;
t_nmdata data;
int fd;
int i;
struct stat buf;
data.flag = NM_ASORT;
if (cliopts_get(av, g_nm_opts, &data))
return (ft_dprintf(2, "USAGE PLACEHOLDER\n") * 0 + 1);
i = 1;
while (i < ac && av[i])
{
ft_dprintf(2, "USAGE PLACEHOLDER\n");
return (1);
if ((fd = open(av[i], O_RDONLY)) < 0)
return (1);
if ((fstat(fd, &buf)) < 0)
return (1);
if ((file = mmap(NULL, buf.st_size, PROT_READ, MAP_PRIVATE, fd, 0))
== MAP_FAILED)
return (1);
nm(file, &data);
if (munmap(file, buf.st_size))
return (1);
i++;
}
if ((fd = open(av[1], O_RDONLY)) < 0)
return (1);
if ((fstat(fd, &buf)) < 0)
return (1);
if ((file = mmap(NULL, buf.st_size, PROT_READ, MAP_PRIVATE, fd, 0))
== MAP_FAILED)
return (1);
nm(file);
if (munmap(file, buf.st_size))
return (1);
return (0);
}

10
nm-otool/src/sym_dump.c
View file

@ -40,13 +40,13 @@ void dump_symbol(t_machodata *data, t_symbol *symbol)
sect_name = n_sect ?
(*(struct section_64**)ft_lst_at(data->sects, n_sect - 1)->content)->sectname : NULL;
DG("check2");
ft_printf("%i: %s\n\
\t%03b|%b|%x|%b\
\t%i(%s) \t%#06x \t%x\n",
symbol->pos, symbol->string,
ft_printf("%i:\t%03b|%b|%x|%b\
\t%i(%s) \t%#06x \t%x %-20s\n",
symbol->pos,
(n_type & N_STAB) >> 5, (n_type & N_PEXT) >> 4,
n_type & N_TYPE, n_type & N_EXT,
n_sect, sect_name, n_desc, n_value);
n_sect, sect_name, n_desc, n_value,
symbol->string);
}
void dump_machheader_64(t_machodata *data)

7
nm-otool/src/symbol_init.c
View file

@ -23,7 +23,7 @@ int symbol_init(t_symbol *symbol, char *stringtable, struct nlist_64 *array, int
return (0);
}
int symbol_set(t_symbol *symbol)
int symbol_set(t_symbol *symbol, t_machodata *data)
{
struct nlist_64 nlist;
uint8_t n_type;
@ -33,9 +33,8 @@ int symbol_set(t_symbol *symbol)
nlist = symbol->nlist;
n_type = symbol->nlist.n_type;
type_mask = n_type & N_TYPE;
sect_name = symbol->nlist.n_sect ?
(*(struct section_64**)ft_lst_at(g_data->sects,
symbol->nlist.n_sect - 1)->content)->sectname : NULL;
symbol->sect_name = symbol->nlist.n_sect ?
(*(struct section_64**)ft_lst_at(data->sects, symbol->nlist.n_sect - 1)->content)->sectname : NULL;
if (n_type & N_STAB)
symbol->type = SYM_STAB;
else if (type_mask == N_UNDF && n_type & N_EXT && nlist.n_value != 0)

24
nm-otool/src/symbol_sort.c Normal file
View file

@ -0,0 +1,24 @@
#include "ft_nm_otool.h"
static int sym_asort(t_symbol *sym1, t_symbol *sym2)
{
return (ft_strcmp(sym1->string, sym2->string));
}
static int sym_nsort(t_symbol *sym1, t_symbol *sym2)
{
if (sym1->nlist.n_value == sym2->nlist.n_value)
return (ft_strcmp(sym1->string, sym2->string));
return (sym1->nlist.n_value - sym2->nlist.n_value);
}
int symbol_sort(t_list **syms, t_flag flag)
{
if (flag & NM_ASORT)
ft_lstsort(syms, sym_asort);
else if (flag & NM_NSORT)
ft_lstsort(syms, sym_nsort);
if (flag & NM_RSORT)
ft_lst_reverse(syms);
return (0);
}