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iverilog
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Return if unable to open dependencies file 

Return and print an error if iverilog is unable to open dependencies
file. User can pass e.g path to existing directory in '-M' option,
which makes fopen to return NULL followed by crash in fclose.
This commit is contained in:
8tab 2017-04-09 23:18:49 +02:00
parent 02ed16a50e
commit cac5388451
1 changed files with 6 additions and 2 deletions
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8
driver/main.c
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@ -1268,8 +1268,12 @@ int main(int argc, char **argv)
will append to the file, so this is necessary to make sure will append to the file, so this is necessary to make sure
it starts out empty. */ it starts out empty. */
if (depfile) { if (depfile) {
FILE*fd = fopen(depfile, "w"); FILE *fd = fopen(depfile, "w");
fclose(fd); if (!fd) {
fprintf(stderr, "%s: can't open %s file.\n\n%s\n", argv[0], depfile, HELP);
return 1;
}
fclose(fd);
} }
if (source_count == 0 && !version_flag) { if (source_count == 0 && !version_flag) {