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New environment variable SOURCE_DATE_EPOCH

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This commit is contained in:
Thomas Schmitt
2016-08-16 13:18:31 +00:00
parent bda4b37e97
commit 384ff0eee9
8 changed files with 412 additions and 218 deletions
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60
xorriso/parse_exec.c
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@@ -2549,10 +2549,70 @@ ex:;
}
/* https://reproducible-builds.org/specs/source-date-epoch/
and reproducible-builds@lists.alioth.debian.org in august 2016
*/
int Xorriso_source_date_epoch(struct XorrisO *xorriso, int flag)
{
char *sec_text, double_text[40];
double dsec= -1.0;
time_t tsec;
struct tm *gmt;
sec_text= getenv("SOURCE_DATE_EPOCH");
if(sec_text == NULL)
return(2);
sscanf(sec_text, "%lf", &dsec);
sprintf(double_text, "%.f", dsec);
tsec= dsec;
if(dsec < 0 || ((double) tsec) != dsec ||
strcmp(sec_text, double_text) != 0) {
malformed:;
Xorriso_msgs_submit(xorriso, 0,
"Malformed environment variable SOURCE_DATE_EPOCH encountered",
0, "SORRY", 0);
Xorriso_msgs_submit(xorriso, 0,
"Unset SOURCE_DATE_EPOCH before starting xorriso or see https://reproducible-builds.org/specs/source-date-epoch/",
0, "HINT", 0);
return(0);
}
gmt= gmtime(&tsec);
if(gmt == NULL)
goto malformed;
sprintf(xorriso->vol_uuid, "%4.4d%2.2d%2.2d%2.2d%2.2d%2.2d00",
1900 + gmt->tm_year, gmt->tm_mon + 1, gmt->tm_mday,
gmt->tm_hour, gmt->tm_min, gmt->tm_sec);
xorriso->gpt_guid_mode= 2; /* Disk GUID from vol_uuid */
strcpy(xorriso->all_file_dates, xorriso->vol_uuid);
sprintf(xorriso->info_text,
"Environment variable SOURCE_DATE_EPOCH encountered with value %s",
sec_text);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
sprintf(xorriso->info_text, "SOURCE_DATE_EPOCH : -volume_date uuid %s",
xorriso->vol_uuid);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);
sprintf(xorriso->info_text,
"SOURCE_DATE_EPOCH : -volume_date all_file_dates %s",
xorriso->all_file_dates);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);
sprintf(xorriso->info_text,
"SOURCE_DATE_EPOCH : -boot_image any volume_date_uuid");
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);
return(1);
}
int Xorriso_read_rc(struct XorrisO *xorriso, int flag)
{
int ret,i,was_failure= 0,fret;
/* Interpret environment variable SOURCE_DATE_EPOCH */
ret= Xorriso_source_date_epoch(xorriso, 0);
ret= Xorriso_eval_problem_status(xorriso, ret, 0);
if(ret < 0)
return(0);
if(xorriso->no_rc)
return(1);
i= xorriso->rc_filename_count-1;