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Use SEEK_SET for third arg to *seek() functions. (#139)

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Instead of sometimes passing `0` to `lseek` and friends, we should
use the standard symbolic constant `SEEK_SET`.
This commit is contained in:
Bruce Mitchener 2020-12-28 15:18:41 +07:00 committed by GitHub
parent a986b1e57a
commit 999851e60c
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 10 additions and 9 deletions
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3
src/imagefile2.c
View File

@ -11,6 +11,7 @@
#include "version.h"
#include <stdio.h>
#include <unistd.h>
#include <pixrect/pixrect_hs.h>
#define FALSE 0
@ -132,7 +133,7 @@ int position_rasterfile(RASTERFILE_INFO *fileinfo, int n)
if (n > 0) {
position = sizeof(struct rasterfile) + (n - 1) * fileinfo->rh.ras_length;
if ((status = fseek(fileinfo->file, position, (int)0)) == 0) {
if ((status = fseek(fileinfo->file, position, SEEK_SET)) == 0) {
/* normal return */
return (TRUE);
} /* end if( status ) */

6
src/ldsout.c
View File

@ -109,7 +109,7 @@ int sysout_loader(char * sysout_file_name, int sys_size)
}
/* seek to IFPAGE */
if (lseek(sysout, IFPAGE_ADDRESS, 0) == -1) {
if (lseek(sysout, IFPAGE_ADDRESS, SEEK_SET) == -1) {
perror("sysout_loader: can't seek to IFPAGE");
exit(-1);
}
@ -248,7 +248,7 @@ int sysout_loader(char * sysout_file_name, int sys_size)
#else
fptovp_offset = (fptovp_offset - 1) * BYTESPER_PAGE + 2;
#endif
if (lseek(sysout, fptovp_offset, 0) == -1) {
if (lseek(sysout, fptovp_offset, SEEK_SET) == -1) {
perror("sysout_loader: can't seek to FPTOVP");
exit(-1);
}
@ -310,7 +310,7 @@ int sysout_loader(char * sysout_file_name, int sys_size)
}
#endif /* DOS */
if (GETPAGEOK(fptovp, i) != 0177777) {
if (lseek(sysout, i * BYTESPER_PAGE, 0) == -1) {
if (lseek(sysout, i * BYTESPER_PAGE, SEEK_SET) == -1) {
perror("sysout_loader: can't seek sysout file");
exit(-1);
};

4
src/setsout.c
View File

@ -60,7 +60,7 @@ void set_sysout(int version, char *sysout_file_name) {
exit(-1);
}
/* seek to IFPAGE */
if (lseek(sysout, IFPAGE_ADDRESS, 0) == -1) {
if (lseek(sysout, IFPAGE_ADDRESS, SEEK_SET) == -1) {
perror("sysout_loader: can't seek to IFPAGE");
exit(-1);
}
@ -78,7 +78,7 @@ void set_sysout(int version, char *sysout_file_name) {
ifpage.minbversion = version;
/* seek to IFPAGE */
if (lseek(sysout, IFPAGE_ADDRESS, 0) == -1) {
if (lseek(sysout, IFPAGE_ADDRESS, SEEK_SET) == -1) {
perror("sysout_loader: can't seek to IFPAGE");
exit(-1);
}

2
src/tstsout.c
View File

@ -55,7 +55,7 @@ void check_sysout(char *sysout_file_name, int verbose) {
exit(-1);
}
/* seek to IFPAGE */
if (lseek(sysout, IFPAGE_ADDRESS, 0) == -1) {
if (lseek(sysout, IFPAGE_ADDRESS, SEEK_SET) == -1) {
perror("sysout_loader: can't seek to IFPAGE");
exit(-1);
}

4
src/vmemsave.c
View File

@ -421,7 +421,7 @@ LispPTR vmem_save(char *sysout_file_name)
int contig_pages = 0;
register char *base_addr;
TIMEOUT(rval = lseek(sysout, i * BYTESPER_PAGE, 0));
TIMEOUT(rval = lseek(sysout, i * BYTESPER_PAGE, SEEK_SET));
if (rval == -1) {
err_mess("lseek", errno);
return (FILECANNOTSEEK);
@ -472,7 +472,7 @@ LispPTR vmem_save(char *sysout_file_name)
}
/* seek to IFPAGE */
TIMEOUT(rval = lseek(sysout, (long)FP_IFPAGE, 0));
TIMEOUT(rval = lseek(sysout, (long)FP_IFPAGE, SEEK_SET));
if (rval == -1) {
err_mess("lseek", errno);
return (FILECANNOTSEEK);