71 lines
2.2 KiB
C
71 lines
2.2 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* mach.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: jhalford <jack@crans.org> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2017/10/23 16:06:44 by jhalford #+# #+# */
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/* Updated: 2017/10/30 11:32:11 by jhalford ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "ft_nm_otool.h"
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static void symtab_parse(t_machodata *data, struct symtab_command *symtab)
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{
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int i;
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t_symbol symbol;
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char *stringtable;
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struct nlist *array;
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data->symtab = symtab;
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stringtable = data->file + symtab->stroff;
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array = (struct nlist*)(data->file + symtab->symoff);
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i = -1;
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while (++i < (int)symtab->nsyms)
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{
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symbol_init(&symbol, stringtable, array, i);
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symbol_set(&symbol, data);
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ft_lsteadd(&data->symbols, ft_lstnew(&symbol, sizeof(symbol)));
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}
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}
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static void seg_parse(t_machodata *data, struct segment_command *seg)
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{
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uint32_t nsects;
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uint32_t i;
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struct section *sect;
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nsects = seg->nsects;
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sect = (void*)(seg + 1);
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i = -1;
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while (++i < nsects)
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{
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ft_lsteadd(&data->sects, ft_lstnew(§, sizeof(sect)));
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sect = sect + 1;
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}
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}
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void mach_parse(t_machodata *data)
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{
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uint32_t ncmds;
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uint32_t i;
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struct load_command *lc;
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struct mach_header *header;
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header = data->file;
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ncmds = header->ncmds;
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lc = (void*)(header + 1);
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i = -1;
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while (++i < ncmds)
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{
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if (lc->cmd == LC_SYMTAB)
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symtab_parse(data, (struct symtab_command*)lc);
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else if (lc->cmd == LC_DYSYMTAB)
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data->dysymtab = (struct dysymtab_command*)lc;
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else if (lc->cmd == LC_SEGMENT)
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seg_parse(data, (struct segment_command*)lc);
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lc = (void*)lc + lc->cmdsize;
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}
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}
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