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Made sure that every call to bfd_read, bfd_write, and bfd_seek
checks the return value and handled bfd_error correctly. These changes are not itemised. Also: * srec.c (srec_write_record): Change return type to boolean. (srec_write_header): Likewise. Also, check srec_write_record return value. (srec_write_section, srec_write_terminator): Likewise. (srec_write_symbols): Change return type to boolean. (internal_srec_write_object_contents): Check return value of srec_write_symbols, srec_write_header, srec_write_section, and srec_write_terminator.
This commit is contained in:
Ian Lance Taylor
parent
5f322b5eb0
commit
6d4f771502
99
bfd/srec.c
99
bfd/srec.c
@ -107,6 +107,12 @@ DESCRIPTION
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#include "sysdep.h"
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#include "libbfd.h"
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static boolean srec_write_record PARAMS ((bfd *, int, bfd_vma,
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const unsigned char *,
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const unsigned char *));
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static boolean srec_write_header PARAMS ((bfd *));
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static boolean srec_write_symbols PARAMS ((bfd *));
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/* Macros for converting between hex and binary. */
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static CONST char digs[] = "0123456789ABCDEF";
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@ -188,6 +194,9 @@ typedef struct srec_data_struct
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}
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tdata_type;
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static boolean srec_write_section PARAMS ((bfd *, tdata_type *,
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srec_data_list_type *));
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static boolean srec_write_terminator PARAMS ((bfd *, tdata_type *));
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/*
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called once per input S-Record, used to work out vma and size of data.
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@ -336,7 +345,8 @@ pass_over (abfd, func, symbolfunc, section)
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srec_mkobject (abfd);
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/* To the front of the file */
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bfd_seek (abfd, (file_ptr) 0, SEEK_SET);
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if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
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abort ();
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while (eof == false)
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{
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char buffer[MAXCHUNK];
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@ -410,7 +420,8 @@ pass_over (abfd, func, symbolfunc, section)
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src++;
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/* Fetch the type and the length */
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bfd_read (src, 1, 3, abfd);
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if (bfd_read (src, 1, 3, abfd) != 3)
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abort (); /* FIXME */
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type = *src++;
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@ -423,7 +434,8 @@ pass_over (abfd, func, symbolfunc, section)
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break;
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src += 2;
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bfd_read (src, 1, bytes_on_line * 2, abfd);
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if (bfd_read (src, 1, bytes_on_line * 2, abfd) != bytes_on_line * 2)
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abort (); /* FIXME */
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switch (type)
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{
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@ -487,8 +499,9 @@ srec_object_p (abfd)
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srec_init ();
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bfd_seek (abfd, (file_ptr) 0, SEEK_SET);
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bfd_read (b, 1, 4, abfd);
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if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
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|| bfd_read (b, 1, 4, abfd) != 4)
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return NULL;
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if (b[0] != 'S' || !ISHEX (b[1]) || !ISHEX (b[2]) || !ISHEX (b[3]))
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return (bfd_target *) NULL;
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@ -508,8 +521,9 @@ symbolsrec_object_p (abfd)
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srec_init ();
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bfd_seek (abfd, (file_ptr) 0, SEEK_SET);
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bfd_read (b, 1, 4, abfd);
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if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
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|| bfd_read (b, 1, 4, abfd) != 4)
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return NULL;
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if (b[0] != '$' || b[1] != '$')
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return (bfd_target *) NULL;
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@ -614,15 +628,13 @@ srec_set_section_contents (abfd, section, location, offset, bytes_to_do)
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supplied bytes and length don't have a checksum. That's worked out
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here
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*/
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static
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void
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static boolean
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srec_write_record (abfd, type, address, data, end)
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bfd *abfd;
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char type;
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int type;
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bfd_vma address;
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CONST unsigned char *data;
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CONST unsigned char *end;
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const unsigned char *data;
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const unsigned char *end;
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{
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char buffer[MAXCHUNK];
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@ -673,12 +685,14 @@ srec_write_record (abfd, type, address, data, end)
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*dst++ = '\r';
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*dst++ = '\n';
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bfd_write ((PTR) buffer, 1, dst - buffer, abfd);
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if (bfd_write ((PTR) buffer, 1, dst - buffer, abfd) != dst - buffer)
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return false;
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return true;
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}
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static void
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static boolean
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srec_write_header (abfd)
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bfd *abfd;
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{
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@ -691,10 +705,10 @@ srec_write_header (abfd)
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{
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*dst++ = abfd->filename[i];
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}
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srec_write_record (abfd, 0, 0, buffer, dst);
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return srec_write_record (abfd, 0, 0, buffer, dst);
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}
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static void
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static boolean
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srec_write_section (abfd, tdata, list)
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bfd *abfd;
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tdata_type *tdata;
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@ -716,32 +730,34 @@ srec_write_section (abfd, tdata, list)
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address = list->where + bytes_written;
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srec_write_record (abfd,
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tdata->type,
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address,
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location,
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location + bytes_this_chunk);
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if (! srec_write_record (abfd,
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tdata->type,
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address,
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location,
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location + bytes_this_chunk))
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return false;
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bytes_written += bytes_this_chunk;
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location += bytes_this_chunk;
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}
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return true;
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}
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static void
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static boolean
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srec_write_terminator (abfd, tdata)
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bfd *abfd;
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tdata_type *tdata;
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{
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unsigned char buffer[2];
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srec_write_record (abfd, 10 - tdata->type,
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abfd->start_address, buffer, buffer);
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return srec_write_record (abfd, 10 - tdata->type,
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abfd->start_address, buffer, buffer);
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}
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static void
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static boolean
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srec_write_symbols (abfd)
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bfd *abfd;
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{
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@ -752,10 +768,13 @@ srec_write_symbols (abfd)
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if (len)
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{
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size_t len;
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asymbol **table = bfd_get_outsymbols (abfd);
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sprintf (buffer, "$$ %s\r\n", abfd->filename);
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bfd_write (buffer, strlen (buffer), 1, abfd);
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len = strlen (buffer) + 1;
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if (bfd_write (buffer, len, 1, abfd) != len)
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return false;
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for (i = 0; i < len; i++)
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{
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@ -771,7 +790,8 @@ srec_write_symbols (abfd)
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int l;
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sprintf (buffer, "$$ %s\r\n", s->name);
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l = strlen (buffer);
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bfd_write (buffer, l, 1, abfd);
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if (bfd_write (buffer, l, 1, abfd) != l)
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return false;
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}
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else
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#endif
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@ -793,12 +813,17 @@ srec_write_symbols (abfd)
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p++;
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sprintf (buffer, " %s $%s\r\n", s->name, p);
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l = strlen (buffer);
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bfd_write (buffer, l, 1, abfd);
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if (bfd_write (buffer, l, 1, abfd) != l)
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return false;
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}
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}
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sprintf (buffer, "$$ \r\n");
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bfd_write (buffer, strlen (buffer), 1, abfd);
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len = strlen (buffer) + 1;
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if (bfd_write (buffer, len, 1, abfd) != len)
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return false;
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}
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return true;
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}
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static boolean
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@ -810,20 +835,24 @@ internal_srec_write_object_contents (abfd, symbols)
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srec_data_list_type *list;
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if (symbols)
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srec_write_symbols (abfd);
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{
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if (! srec_write_symbols (abfd))
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return false;
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}
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srec_write_header (abfd);
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if (! srec_write_header (abfd))
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return false;
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/* Now wander though all the sections provided and output them */
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list = tdata->head;
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while (list != (srec_data_list_type *) NULL)
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{
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srec_write_section (abfd, tdata, list);
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if (! srec_write_section (abfd, tdata, list))
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return false;
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list = list->next;
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}
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srec_write_terminator (abfd, tdata);
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return true;
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return srec_write_terminator (abfd, tdata);
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}
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static boolean
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