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Add a system error message to file open errors #121

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Add a system error message to file open errors #121

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6 changes: 4 additions & 2 deletions cfileio.c
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Original file line number Diff line number Diff line change
Expand Up @@ -805,8 +805,10 @@ int ffopen(fitsfile **fptr, /* O - FITS file pointer */
FFUNLOCK;
if (*status > 0)
{
ffpmsg("failed to find or open the following file: (ffopen)");
ffpmsg(url);
const char *err = strerror(errno);
char msg[512];
snprintf(msg, sizeof msg, "(ffopen) %s: %s", url, err);
ffpmsg(msg);
return(*status);
}
}
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