69 lines
1.5 KiB
C
69 lines
1.5 KiB
C
/*
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We're testing that reading corrupt TIFF files doesn't cause any memory issues,
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and that the operation gracefully fails (i.e. gdImageCreateFromTiffPtr() returns
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NULL).
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*/
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#include "gd.h"
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#include "gdtest.h"
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static void check_file(char *basename);
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static size_t read_test_file(char **buffer, char *basename);
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int main()
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{
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check_file("tiff_invalid_read_1.tiff");
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check_file("tiff_invalid_read_2.tiff");
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check_file("tiff_invalid_read_3.tiff");
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return gdNumFailures();
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}
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static void check_file(char *basename)
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{
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gdImagePtr im;
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char *buffer = NULL;
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size_t size;
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size = read_test_file(&buffer, basename);
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im = gdImageCreateFromTiffPtr(size, (void *) buffer);
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gdTestAssert(im == NULL);
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if (buffer != NULL) {
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free(buffer);
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}
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}
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static size_t read_test_file(char **buffer, char *basename)
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{
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char *filename;
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FILE *fp;
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size_t exp_size, act_size = -1;
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filename = gdTestFilePath2("tiff", basename);
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fp = fopen(filename, "rb");
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if (gdTestAssert(fp != NULL)) goto fail3;
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if (fseek(fp, 0, SEEK_END) != 0) goto fail2;
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exp_size = ftell(fp);
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if (gdTestAssert(exp_size <= 0)) goto fail2;
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if (fseek(fp, 0, SEEK_SET) != 0) goto fail2;
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*buffer = malloc(exp_size);
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if (gdTestAssert(*buffer != NULL)) goto fail2;
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act_size = fread(*buffer, sizeof(**buffer), exp_size, fp);
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gdTestAssert(act_size == exp_size);
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fail2:
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fclose(fp);
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fail3:
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free(filename);
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return act_size;
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}
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