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tccmacho: avoid warnings with strncpy and always terminate the target string

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Detlef Riekenberg 2022-05-09 12:49:48 +02:00
parent 0241120b54
commit 1cd7998905
1 changed files with 4 additions and 2 deletions
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6
tccmacho.c
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@ -262,7 +262,8 @@ static void * add_lc(struct macho *mo, uint32_t cmd, uint32_t cmdsize)
static struct segment_command_64 * add_segment(struct macho *mo, const char *name) static struct segment_command_64 * add_segment(struct macho *mo, const char *name)
{ {
struct segment_command_64 *sc = add_lc(mo, LC_SEGMENT_64, sizeof(*sc)); struct segment_command_64 *sc = add_lc(mo, LC_SEGMENT_64, sizeof(*sc));
strncpy(sc->segname, name, 16); strncpy(sc->segname, name, 16-1);
sc->segname[16-1] = '\0';
mo->seg2lc[mo->nseg++] = mo->nlc - 1; mo->seg2lc[mo->nseg++] = mo->nlc - 1;
return sc; return sc;
} }
@ -282,7 +283,8 @@ static int add_section(struct macho *mo, struct segment_command_64 **_seg, const
seg = tcc_realloc(seg, sizeof(*seg) + seg->nsects * sizeof(*sec)); seg = tcc_realloc(seg, sizeof(*seg) + seg->nsects * sizeof(*sec));
sec = (struct section_64*)((char*)seg + sizeof(*seg)) + ret; sec = (struct section_64*)((char*)seg + sizeof(*seg)) + ret;
memset(sec, 0, sizeof(*sec)); memset(sec, 0, sizeof(*sec));
strncpy(sec->sectname, name, 16); strncpy(sec->sectname, name, 16-1);
sec->sectname[16-1] = '\0';
strncpy(sec->segname, seg->segname, 16); strncpy(sec->segname, seg->segname, 16);
*_seg = seg; *_seg = seg;
return ret; return ret;